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Penn State University
1.
Wetherington, Maxwell Turner.
Graphene Oxide Synthesis and Radiolysis.
Degree: 2013, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/18645 
► The diverse functionalization of graphene oxide (GO) provides this material unique chemical and physical properties that can theoretically be tailored during the synthesis and/or reduction…
(more)
▼ The diverse functionalization of graphene oxide (GO) provides this material unique chemical and physical properties that can theoretically be tailored during the synthesis and/or reduction of the material. One specific property of interest for the opto-electronic industry is the ability to tailor the optical band gap of GO, which can be modified by selective functionalization or through the formation of heterogeneous structures. Understanding the mechanisms through which this functionalization can be controlled is necessary before GO can be implemented into these opto-electronic devices.
This thesis investigates the effects of the synthesis process on the GO structure; identifying key parameters for the oxidation method, cleaning procedure and starting material selection. It is determined that water significantly affects the present functional groups in GO. Also the size of the GO flakes correlates with the crystallite size of the graphite material, as well as the starting flake size. The stability of this structure is then explored through the use of in-situ x-ray techniques. A range of photon radiation sources are used for the in-situ measurements to identify the rate of interaction as a function of photon energy as well as the interaction mechanisms. Lastly, the interaction of GO with other ionizing radiation, such as neutron and alpha particles, is investigated.
Advisors/Committee Members: Joshua Alexander Robinson, Thesis Advisor/Co-Advisor, David Lawrence Allara, Thesis Advisor/Co-Advisor, James Hansell Adair, Thesis Advisor/Co-Advisor.
Subjects/Keywords: graphene oxide; functionalization; radiolysis; luminescence
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APA (6th Edition):
Wetherington, M. T. (2013). Graphene Oxide Synthesis and Radiolysis. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/18645
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wetherington, Maxwell Turner. “Graphene Oxide Synthesis and Radiolysis.” 2013. Thesis, Penn State University. Accessed March 05, 2021.
https://submit-etda.libraries.psu.edu/catalog/18645.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wetherington, Maxwell Turner. “Graphene Oxide Synthesis and Radiolysis.” 2013. Web. 05 Mar 2021.
Vancouver:
Wetherington MT. Graphene Oxide Synthesis and Radiolysis. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Mar 05].
Available from: https://submit-etda.libraries.psu.edu/catalog/18645.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wetherington MT. Graphene Oxide Synthesis and Radiolysis. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/18645
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Southworth, Jamie.
Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces.
Degree: 2019, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:322291
► The production of H2 from the radiolysis of water in contact with spent nuclear fuel presents significant safety and engineering challenges. Anomalous gas production from…
(more)
▼ The production of H2 from the
radiolysis of water
in contact with spent nuclear fuel presents significant safety and
engineering challenges. Anomalous gas production from adsorbed
water
radiolysis has the potential to generate flammable
atmospheres in PuO2 storage containers residing in interim storage.
Due to the nature of working with PuO2, a non-active analogue must
be sought so the anomalous effects it has can be probed without the
limitations associated with working with plutonium. The search for
a metal oxide with a similar effect on radiolytic yields of H2 to
PuO2 was undertaken by investigating the
radiolysis of water
adsorbed on or aqueous suspensions of ZnO. Samples were prepared
humidity control it was found that the presence of ZnO enhances
radiolytic H2 production, contrary to indications from literature.
During the same experiments, O2 was observed in comparable
quantities. Remarkably, O2 was also observed during the
radiolysis
of dry ZnO, previously unseen in similar experiments with other
oxides. The 5.5 MeV He2+ ion beam
radiolysis of aqueous ZnO
suspensions was also undertaken and the results compared to the
ô°€-ray
radiolysis results. In conjunction with this, the
development of a novel method by which the
radiolysis of water can
be evaluated is discussed. The vacuum line method was developed
primarily to give much greater control over the amount of water
introduced for a metal oxide sample surface for irradiation and
aimed to reduce the sources of unquantifiable errors in the
experiment. The method was then used to investigate the
radiolysis
of water adsorbed on ZrO2 with a particular focus on low water
loading.
Advisors/Committee Members: LIVENS, FRANCIS FR, Leay, Laura, Livens, Francis.
Subjects/Keywords: Radiation; Chemistry; Nuclear; Radiolysis
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APA (6th Edition):
Southworth, J. (2019). Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:322291
Chicago Manual of Style (16th Edition):
Southworth, Jamie. “Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces.” 2019. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:322291.
MLA Handbook (7th Edition):
Southworth, Jamie. “Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces.” 2019. Web. 05 Mar 2021.
Vancouver:
Southworth J. Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces. [Internet] [Doctoral dissertation]. University of Manchester; 2019. [cited 2021 Mar 05].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:322291.
Council of Science Editors:
Southworth J. Investigation of Anomalous Hydrogen Production from Water
Adsorbed on Metal Oxide Surfaces. [Doctoral Dissertation]. University of Manchester; 2019. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:322291
3.
Yousefi, Nastaran.
Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water.
Degree: 2014, University of Western Ontario
URL: https://ir.lib.uwo.ca/etd/2343
► Inadequate understanding of radiation-induced water chemistry under supercritical conditions has been identified as one of the important obstacles in the development of a supercritical water-cooled…
(more)
▼ Inadequate understanding of radiation-induced water chemistry under supercritical conditions has been identified as one of the important obstacles in the development of a supercritical water-cooled reactor. Radiolysis of supercritical water generates a variety of redox reactive species, but their persistence in supercritical water is not well understood. This thesis describes the work performed towards addressing this deficiency: (1) the development of a reliable experimental method to determine the concentrations of water radiolysis products, primarily H2, O2 and H2O2, formed under g-irradiation of sub- and supercritical water (SCW), (2) the expansion of the application ranges of the existing g-radiolysis kinetic models for liquid water and water vapour to high temperatures and pressures, and (3) the development of the first versions of the supercritical water radiolysis models based on these two models. With each model calculations were performed as a function of temperature and the computational results were analysed to identify the key reactions and reaction parameters that are important in determining the effect of temperature on the net radiolytic production of H2, O2 and H2O2. The results indicate that the model approach that has been taken is promising and worthy of further development.
Subjects/Keywords: Water Radiolysis; Vapor Radiolysis; Supercritical Water; Kinetic Modeling; Gamma Radiolysis; Steady-state Radiolysis; Supercritical Water-Cooled Reactor; Physical Chemistry
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APA (6th Edition):
Yousefi, N. (2014). Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/2343
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Yousefi, Nastaran. “Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water.” 2014. Thesis, University of Western Ontario. Accessed March 05, 2021.
https://ir.lib.uwo.ca/etd/2343.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Yousefi, Nastaran. “Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water.” 2014. Web. 05 Mar 2021.
Vancouver:
Yousefi N. Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water. [Internet] [Thesis]. University of Western Ontario; 2014. [cited 2021 Mar 05].
Available from: https://ir.lib.uwo.ca/etd/2343.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Yousefi N. Gamma-Radiolysis Kinetics of Liquid, Vapour and Supercritical Water. [Thesis]. University of Western Ontario; 2014. Available from: https://ir.lib.uwo.ca/etd/2343
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Western Ontario
4.
Morco, Ryan P.
Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation.
Degree: 2020, University of Western Ontario
URL: https://ir.lib.uwo.ca/etd/7248
► The γ-radiation emitted during radioactive decay of the wastes in a nuclear fuel container can affect container corrosion. When a metal/water system is exposed to…
(more)
▼ The γ-radiation emitted during radioactive decay of the wastes in a nuclear fuel container can affect container corrosion. When a metal/water system is exposed to γ-radiation both the solid metal and the liquid water (or humid air) absorb energy. This energy dissipates mainly as heat in the metal but induces decomposition of water molecules to yield a range of chemically reactive species. The different chemical environments induced in the metal and liquid phases can change the driving forces for surface reactions and thereby influence the rate and pathway of metal corrosion.
This thesis presents the development of radiolysis kinetic models that predict radiolytic oxidant concentrations relevant to used fuel container (UFC) corrosion in the anticipated deep geologic repository (DGR) environments. The different DGR environments were addressed by constructing three different radiolysis kinetic models: (1) water radiolysis model (WRM), (2) humid air radiolysis model (HARM), and (3) groundwater radiolysis model (GWRM).
The HARM predicts that HNO3 will be the dominant oxidizing species formed during humid air radiolysis with its concentration increasing linearly with dose rate. The extent of corrosion damage caused by HNO3 on a copper surface was conservatively estimated from the determined transfer rate of HNO3 in the gas phase to droplets in contact with the container. A simplified rate formula for the overall radiolytic production of HNO3 in humid air was proposed.
The radiolysis kinetics of deaerated and aerated water at temperatures ranging from 25 to 80 °C was studied using the WRM. The model predicts that the key oxidants formed by radiolysis will be H2O2 and O2. In saline groundwater, GWRM predicted the formation of an intermediate, HOCl. The model calculations were verified using experimental data performed with pure water and chloride solutions.
Radiolytic corrosion of Cu in saline solution was also investigated by performing experiments with γ-irradiation and with chemically-added radiolytic oxidants to simulate the effects of radiation. The results demonstrate that the continuous radiolysis production of reactive species at low levels has different effects on corrosion kinetics from the one-time addition of these species at concentrations equivalent to their overall radiolysis yields over long times.
Subjects/Keywords: Radiation chemistry; gamma-radiolysis kinetics; chemical kinetics modelling; humid-air radiolysis; water radiolysis; saline-water radiolysis; radiolytic corrosion; Chemistry; Physical Chemistry
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APA ·
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Export
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Manager
APA (6th Edition):
Morco, R. P. (2020). Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/7248
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Morco, Ryan P. “Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation.” 2020. Thesis, University of Western Ontario. Accessed March 05, 2021.
https://ir.lib.uwo.ca/etd/7248.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Morco, Ryan P. “Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation.” 2020. Web. 05 Mar 2021.
Vancouver:
Morco RP. Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation. [Internet] [Thesis]. University of Western Ontario; 2020. [cited 2021 Mar 05].
Available from: https://ir.lib.uwo.ca/etd/7248.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Morco RP. Gamma-Radiolysis Kinetics and Its Role in the Overall Dynamics of Materials Degradation. [Thesis]. University of Western Ontario; 2020. Available from: https://ir.lib.uwo.ca/etd/7248
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Manchester
5.
Southworth, Jamie.
Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces.
Degree: PhD, 2019, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-anomalous-hydrogen-production-from-water-adsorbed-on-metal-oxide-surfaces(d33507ca-4e90-4e4f-8a6f-18f1d500bebd).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791228
► The production of H2 from the radiolysis of water in contact with spent nuclear fuel presents significant safety and engineering challenges. Anomalous gas production from…
(more)
▼ The production of H2 from the radiolysis of water in contact with spent nuclear fuel presents significant safety and engineering challenges. Anomalous gas production from adsorbed water radiolysis has the potential to generate flammable atmospheres in PuO2 storage containers residing in interim storage. Due to the nature of working with PuO2, a non-active analogue must be sought so the anomalous effects it has can be probed without the limitations associated with working with plutonium. The search for a metal oxide with a similar effect on radiolytic yields of H2 to PuO2 was undertaken by investigating the radiolysis of water adsorbed on or aqueous suspensions of ZnO. Samples were prepared humidity control it was found that the presence of ZnO enhances radiolytic H2 production, contrary to indications from literature. During the same experiments, O2 was observed in comparable quantities. Remarkably, O2 was also observed during the radiolysis of dry ZnO, previously unseen in similar experiments with other oxides. The 5.5 MeV He2+ ion beam radiolysis of aqueous ZnO suspensions was also undertaken and the results compared to the γ-ray radiolysis results. In conjunction with this, the development of a novel method by which the radiolysis of water can be evaluated is discussed. The vacuum line method was developed primarily to give much greater control over the amount of water introduced for a metal oxide sample surface for irradiation and aimed to reduce the sources of unquantifiable errors in the experiment. The method was then used to investigate the radiolysis of water adsorbed on ZrO2 with a particular focus on low water loading.
Subjects/Keywords: 540; Radiolysis; Nuclear; Radiation; Chemistry
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Southworth, J. (2019). Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-anomalous-hydrogen-production-from-water-adsorbed-on-metal-oxide-surfaces(d33507ca-4e90-4e4f-8a6f-18f1d500bebd).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791228
Chicago Manual of Style (16th Edition):
Southworth, Jamie. “Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces.” 2019. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-anomalous-hydrogen-production-from-water-adsorbed-on-metal-oxide-surfaces(d33507ca-4e90-4e4f-8a6f-18f1d500bebd).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791228.
MLA Handbook (7th Edition):
Southworth, Jamie. “Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces.” 2019. Web. 05 Mar 2021.
Vancouver:
Southworth J. Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces. [Internet] [Doctoral dissertation]. University of Manchester; 2019. [cited 2021 Mar 05].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-anomalous-hydrogen-production-from-water-adsorbed-on-metal-oxide-surfaces(d33507ca-4e90-4e4f-8a6f-18f1d500bebd).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791228.
Council of Science Editors:
Southworth J. Investigation of anomalous hydrogen production from water adsorbed on metal oxide surfaces. [Doctoral Dissertation]. University of Manchester; 2019. Available from: https://www.research.manchester.ac.uk/portal/en/theses/investigation-of-anomalous-hydrogen-production-from-water-adsorbed-on-metal-oxide-surfaces(d33507ca-4e90-4e4f-8a6f-18f1d500bebd).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.791228
University of Manchester
6.
Donoclift, Thomas Ashley.
The Radiolytic Steady-State and Factors Controlling H2
Production.
Degree: 2017, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307832
► Sellafield is home to the UK’s largest repository of nuclear waste, including reprocessed uranium and plutonium, as well as a backlog of unprocessed used fuel…
(more)
▼ Sellafield is home to the UK’s largest repository
of nuclear waste, including reprocessed uranium and plutonium, as
well as a backlog of unprocessed used fuel and waste kept in
outdated storage facilities; commonly referred to as “legacy
waste”. For this reason, Sellafield has often been called the most
hazardous place in Western Europe and as such, is currently
undergoing a multi-billion pound decommissioning and clean-up
operation. Each on-site facility has unique challenges associated
with it, many of them presenting situations where the radiation
chemistry aspects of the material degradation are not well
understood. The key factors that can affect water radiolysis
processes in the Sellafield challenges are a high pH environment,
the presence of magnesium hydroxide, the presence of iron oxide,
and the presence of organic materials. This work examines the
effect each of these factors has on H2 and H2O2 production in water
radiolysis as well as developing a computational model to offer
some understanding to the kinetic behaviour of water radiolysis
under such conditions. The computational model was able to
replicate experimental measurements of radiolytic H2 and H2O2
production in both aerated and deaerated water at neutral pH, and
provide a further understanding of the role of dissolved oxygen in
water radiolysis. Measurements of H2O2 from solutions containing
NaOH have shown that an increase in pH generally results in a
higher steady state of H2O2, while measurements of H2 show a
similar increase with a maximum production rate at pH ~11. The
model was also able to closely replicate these experimental
measurements with some over prediction, which highlights a gap in
our understanding of high pH radiolysis and also brings into
question the validity of the estimated rate constant for the
reaction: O- + O2- -> 2OH- + O2 k= 6.0×108 M-1 s-1which was
originally determined from kinetic model calculations designed to
describe the decay of ozonide (O3ˉ) during pulse-radiolysis studies
of high pH solutions conducted byK. Sehested et al in 1982.The
radiolysis of magnesium hydroxide slurry also resulted in an
increased yield of hydrogen gas but had little effect on the yield
of hydrogen peroxide. The hydrogen yield was 0.52 molecules per
100eV while a NaOH solution of equivalent pH gave a yield of 0.27,
however interference from carbonate may be the cause of the
increased yield. A surface effect was also estimated to contribute
0.05 molecules per 100 eV to the hydrogen gas yield.Hydrogen gas
and hydrogen peroxide was measured from the radiolysis of aqueous
methanol. This was modelled with a near agreement, but
modifications to the model were necessary; highlighting areas of
the model that need improvement, as well as providing a reaction
scheme from which a more comprehensive model for aqueous methanol
radiolysis could be developed.
Sellafield is home to the UK’s largest repository
of nuclear waste, including reprocessed uranium and plutonium, as
well as a backlog of unprocessed used fuel and waste kept in
outdated…
Advisors/Committee Members: Pimblott, Simon.
Subjects/Keywords: nuclear waste; radiation chemistry; radiolysis; hydrogen production; water radiolysis; computational modelling
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Donoclift, T. A. (2017). The Radiolytic Steady-State and Factors Controlling H2
Production. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307832
Chicago Manual of Style (16th Edition):
Donoclift, Thomas Ashley. “The Radiolytic Steady-State and Factors Controlling H2
Production.” 2017. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307832.
MLA Handbook (7th Edition):
Donoclift, Thomas Ashley. “The Radiolytic Steady-State and Factors Controlling H2
Production.” 2017. Web. 05 Mar 2021.
Vancouver:
Donoclift TA. The Radiolytic Steady-State and Factors Controlling H2
Production. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2021 Mar 05].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307832.
Council of Science Editors:
Donoclift TA. The Radiolytic Steady-State and Factors Controlling H2
Production. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307832
7.
Kawade, Vitthal Ajinath.
Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives.
Degree: 2010, University of Pune
URL: http://shodhganga.inflibnet.ac.in/handle/10603/2689
Subjects/Keywords: Pulse radiolysis; Chemistry
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kawade, V. A. (2010). Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives. (Thesis). University of Pune. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/2689
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kawade, Vitthal Ajinath. “Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives.” 2010. Thesis, University of Pune. Accessed March 05, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/2689.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kawade, Vitthal Ajinath. “Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives.” 2010. Web. 05 Mar 2021.
Vancouver:
Kawade VA. Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives. [Internet] [Thesis]. University of Pune; 2010. [cited 2021 Mar 05].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2689.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kawade VA. Synthesis, characterization and pulse radiolysis study
ofmixed ligand cobalt complexes of pyridine and polypyridyl
derivatives. [Thesis]. University of Pune; 2010. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/2689
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Texas A&M University
8.
Clemens, Jeffrey Tyler.
Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation.
Degree: MS, Nuclear Engineering, 2014, Texas A&M University
URL: http://hdl.handle.net/1969.1/152836
► The chemical effects of irradiation on high pressure methane and noble gas mixtures were investigated using gamma, electron beam, and neutron irradiation sources. The gamma…
(more)
▼ The chemical effects of irradiation on high pressure methane and noble gas mixtures were investigated using gamma, electron beam, and neutron irradiation sources. The gamma source used was the La-140 source from the Nuclear Science Center (NSC) at an activity of 400 Ci. The electron source was a 10 MeV, 15 kW, linear accelerator at the National Center for Electron Beam Research. The neutron source was the NSC reactor running at 1 MWth. The in-core positions were used for the neutron irradiations had neutron fluxes ranging from 5 x 10^(12) to 1x10^(13) n/cm^(2)/s. The gases used for the study included research grade methane, argon, and helium. The compressed gases were irradiated in a several separate irradiation vessels made with minimal nonmetal parts to reduce
contamination. The majority of the vessels were pressurized to 2.07 MPa (300 psi) for the irradiation. The vessels were irradiated by one of the three irradiation sources for a maximum dose. The methane was mixed with the noble gases helium and argon, these gases were added to dilute the methane concentration, and study charge transfer effects on radiation chemical yields.
The reaction products were measured using a gas chromatography mass spectrometer (GCMS). In addition to the GCMS, a lab made mass spectrometer system was used to measure the hydrogen and ethane concentrations within the gas post irradiation. The NSC Reactor irradiations show a measurable increase in the concentration of ethane and hydrogen, the La-140 and electron beam irradiations do not show measurable increases in hydrogen and ethane concentrations.
The primary accomplishment of this research was the design of systems that are capable of performing high pressure gas irradiations. The irradiation experiments devel-oped three separate irradiation vessels during the course of the experiments. The analysis system was a mass spectrometer system that is capable of trace molecule detection. The experiments that had shown measurable change in the hydrogen and ethane concentra-tions had the G-values of the individual reaction products calculated for the NSC reac-tion irradiations. The G-values for were calculated to be 2.61±0.62 and 1.16±0.34 for hydrogen and ethane production, respectively. The effects of different types of radiation were examined during this thesis, and a future experimental work is proposed.
Advisors/Committee Members: McDeavitt, Sean M (advisor), Shao, Lin (committee member), Schweikert, Emile (committee member).
Subjects/Keywords: Methane; radiolysis; radiation chemistry; high pressure
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Manager
APA (6th Edition):
Clemens, J. T. (2014). Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/152836
Chicago Manual of Style (16th Edition):
Clemens, Jeffrey Tyler. “Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation.” 2014. Masters Thesis, Texas A&M University. Accessed March 05, 2021.
http://hdl.handle.net/1969.1/152836.
MLA Handbook (7th Edition):
Clemens, Jeffrey Tyler. “Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation.” 2014. Web. 05 Mar 2021.
Vancouver:
Clemens JT. Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation. [Internet] [Masters thesis]. Texas A&M University; 2014. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/1969.1/152836.
Council of Science Editors:
Clemens JT. Radiochemical Transformation of High Pressure Methane under Gamma, Electron, and Neutron Irradiation. [Masters Thesis]. Texas A&M University; 2014. Available from: http://hdl.handle.net/1969.1/152836
9.
Coletta, Cecilia.
Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle.
Degree: Docteur es, Chimie, 2016, Université Paris-Saclay (ComUE)
URL: http://www.theses.fr/2016SACLS288
► Les polymères conducteurs (PC) sont des matériaux organiques semi-conducteurs très utilisés dans diverses applications technologiques. Les propriétés optiques et conductrices de ces matériaux organiques conjugués…
(more)
▼ Les polymères conducteurs (PC) sont des matériaux organiques semi-conducteurs très utilisés dans diverses applications technologiques. Les propriétés optiques et conductrices de ces matériaux organiques conjugués résultent de la délocalisation électronique le long des chaînes polymères et dépendent, de ce fait, de la longueur de conjugaison. Les différentes méthodologies de synthèse des PC ont toujours pour finalité la fabrication de nouvelles structures polymères stables dans différents environnements, et dont les propriétés optiques et conductrices seraient ajustables. Néanmoins, les PC qui sont actuellement fabriqués présentent encore un certain nombre de défauts, du fait d’un manque de compréhension et de contrôle du processus de polymérisation.Parmi tous les polymères conducteurs, le poly (3, 4-éthylènedioxythiophène) (PEDOT, un dérivé de polythiophène) et le polypyrrole (PPy) sont déjà utilisés dans plusieurs applications pour leurs propriétés chimiques et physiques. Les PC, comme le PEDOT et le PPy, sont habituellement synthétisés par voie chimique ou électrochimique, la polymérisation étant systématiquement initiée par une étape d’oxydation des monomères. D'autre part, les propriétés complexes des polymères ne peuvent être contrôlées que si une bonne connaissance du procédé de polymérisation est acquise. Dans ce cas, il est possible d’orienter le processus lors de la synthèse (fonctionnalisation, caractère hydrophile, longueur de la chaîne, niveau de dopage) afin d’améliorer les propriétés conductrices des polymères synthétisés.La radiolyse de l'eau représente une méthode simple et efficace qui permet la polymérisation dans des conditions douces (température et pression ambiantes), sans aucun dopant externe, mais qui à notre connaissance n’avait jamais été utilisée seule pour la synthèse de PC. Au sein de notre laboratoire, une méthodologie alternative basée sur l’interaction rayonnement-matière a récemment été utilisée avec succès pour la synthèse de PC nanostructurés en solution aqueuse. Le présent travail est plus spécifiquement consacré à la synthèse de PEDOT et PPy en solution aqueuse et à l'étude de leur mécanisme de croissance par radiolyse pulsée.Grace à l'accélérateur d'électrons ELYSE, l'utilisation de la radiolyse pulsée couplée à la spectroscopie d'absorption résolue dans le temps a permis d'étudier la cinétique des réactions à l’échelle de la nanoseconde et de la milliseconde. Les spectres d’absorption des espèces transitoires impliquées dans le mécanisme réactionnel ont été identifiés grâce à des calculs de chimie quantique. Tout d'abord, la réaction du radical hydroxyle avec les monomères EDOT et Py a été étudiée, ainsi que la polymérisation induite par le rayonnement. Ensuite, l'étude a été transposée à d'autres radicaux oxydants tels que CO3.-, N3. et SO4.- à différents pH. Cette approche a permis de mettre en évidence l'influence des espèces oxydantes sur les premières étapes transitoires lors de l’oxydation des monomères (radical cation, produit d'addition ou radical neutre). Enfin, le…
Advisors/Committee Members: Remita, Samy (thesis director), Marignier, Jean-Louis (thesis director).
Subjects/Keywords: Radiolyse; Polymeres; Spectroscopie; Radiolysis; Polymer; Spectroscopy
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Manager
APA (6th Edition):
Coletta, C. (2016). Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2016SACLS288
Chicago Manual of Style (16th Edition):
Coletta, Cecilia. “Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle.” 2016. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed March 05, 2021.
http://www.theses.fr/2016SACLS288.
MLA Handbook (7th Edition):
Coletta, Cecilia. “Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle.” 2016. Web. 05 Mar 2021.
Vancouver:
Coletta C. Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2016. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2016SACLS288.
Council of Science Editors:
Coletta C. Study of growth mechanism of conducting polymers by pulse radiolysis : Étude du mécanisme de croissance de polymères conducteurs par radiolyse impulsionnelle. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2016. Available from: http://www.theses.fr/2016SACLS288
University of Manchester
10.
Bates, Katherine.
The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems.
Degree: 2017, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:310938
► Research was conducted into the radiolytic hydrogen production from the gamma radiolysis of n-dodecane and TODGA. Experiments were conducted to determine the value of G(H2)…
(more)
▼ Research was conducted into the radiolytic hydrogen
production from the gamma
radiolysis of n-dodecane and TODGA.
Experiments were conducted to determine the value of G(H2) for neat
n-dodecane, TODGA, and mixtures of the two. Variables investigated
were the dependence of G(H2) on dose, the effect of purging with
argon, and the dose rate (between 21 and 360 Gy/min). The value of
G(H2) for n-dodecane was observed to be dependent on the dose, the
dose rate, and exposure to the atmosphere. When the absorbed dose
increased to above 5kGy, the value of G(H2) decreased. Increasing
the dose rate was observed to decrease the value of G(H2). Purging
n-dodecane with argon resulted in an increased value of G(H2). When
neat TODGA was irradiated, purging the system with argon did not
cause an effect on the yield of hydrogen. When the absorbed dose
increased above 5kGy, the value of G(H2) increased; the opposite
behaviour to n-dodecane. Irradiating mixtures of n-dodecane and
TODGA results in a decreased yield of hydrogen when compared to
extrapolations of from neat n-dodecane and TODGA. A model was
constructed for hydrocarbon
radiolysis, using an iterative approach
to solving a set of simultaneous equations, based on the reactions
of hydrocarbon radicals after
radiolysis. The model did not include
a mechanism for the experimentally observed dependence of G(H2) on
the dose rate of the incident gamma-irradiation. In the future
reprocessing system EURO-GANEX, a solution of 0.2M TODGA and 0.5M
DMDOHEMA in a hydrocarbon based diluent is expected to be used as
the organic extractant phase. The experimentally determined values
of G(H2) for 0.2M TODGA in n-dodecane were as follows. Under
aerated conditions: (0.208+-0.004)u mol/J during the LDR,
(0.158+-0.003)u mol/J for absorbed doses above 5kGy; and (0.32+-
0.01)u mol/J for argon purged solutions in the
LDR.
Advisors/Committee Members: SHARRAD, CLINT CA, Pimblott, Simon, Sharrad, Clint.
Subjects/Keywords: n-dodecane; TODGA; radiolysis; hydrogen; radiolytic
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bates, K. (2017). The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:310938
Chicago Manual of Style (16th Edition):
Bates, Katherine. “The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems.” 2017. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:310938.
MLA Handbook (7th Edition):
Bates, Katherine. “The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems.” 2017. Web. 05 Mar 2021.
Vancouver:
Bates K. The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2021 Mar 05].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:310938.
Council of Science Editors:
Bates K. The Radiolytic Hydrogen Production from TODGA and
Associated Reprocessing Systems. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:310938
University of Manchester
11.
Bates, Katherine.
The radiolytic hydrogen production from TODGA and associated reprocessing systems.
Degree: PhD, 2018, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-hydrogen-production-from-todga-and-associated-reprocessing-systems(69b8a288-b46f-4777-917c-6bb56c475a4f).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.779560
► Research was conducted into the radiolytic hydrogen production from the gamma radiolysis of n-dodecane and TODGA. Experiments were conducted to determine the value of G(H2)…
(more)
▼ Research was conducted into the radiolytic hydrogen production from the gamma radiolysis of n-dodecane and TODGA. Experiments were conducted to determine the value of G(H2) for neat n-dodecane, TODGA, and mixtures of the two. Variables investigated were the dependence of G(H2) on dose, the effect of purging with argon, and the dose rate (between 21 and 360 Gy/min). The value of G(H2) for n-dodecane was observed to be dependent on the dose, the dose rate, and exposure to the atmosphere. When the absorbed dose increased to above 5kGy, the value of G(H2) decreased. Increasing the dose rate was observed to decrease the value of G(H2). Purging n-dodecane with argon resulted in an increased value of G(H2). When neat TODGA was irradiated, purging the system with argon did not cause an effect on the yield of hydrogen. When the absorbed dose increased above 5kGy, the value of G(H2) increased; the opposite behaviour to n-dodecane. Irradiating mixtures of n-dodecane and TODGA results in a decreased yield of hydrogen when compared to extrapolations of from neat n-dodecane and TODGA. A model was constructed for hydrocarbon radiolysis, using an iterative approach to solving a set of simultaneous equations, based on the reactions of hydrocarbon radicals after radiolysis. The model did not include a mechanism for the experimentally observed dependence of G(H2) on the dose rate of the incident gamma-irradiation. In the future reprocessing system EURO-GANEX, a solution of 0.2M TODGA and 0.5M DMDOHEMA in a hydrocarbon based diluent is expected to be used as the organic extractant phase. The experimentally determined values of G(H2) for 0.2M TODGA in n-dodecane were as follows. Under aerated conditions: (0.208+-0.004)u mol/J during the LDR, (0.158+-0.003)u mol/J for absorbed doses above 5kGy; and (0.32+- 0.01)u mol/J for argon purged solutions in the LDR.
Subjects/Keywords: 540; radiolytic; hydrogen; radiolysis; TODGA; n-dodecane
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bates, K. (2018). The radiolytic hydrogen production from TODGA and associated reprocessing systems. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-hydrogen-production-from-todga-and-associated-reprocessing-systems(69b8a288-b46f-4777-917c-6bb56c475a4f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.779560
Chicago Manual of Style (16th Edition):
Bates, Katherine. “The radiolytic hydrogen production from TODGA and associated reprocessing systems.” 2018. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-hydrogen-production-from-todga-and-associated-reprocessing-systems(69b8a288-b46f-4777-917c-6bb56c475a4f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.779560.
MLA Handbook (7th Edition):
Bates, Katherine. “The radiolytic hydrogen production from TODGA and associated reprocessing systems.” 2018. Web. 05 Mar 2021.
Vancouver:
Bates K. The radiolytic hydrogen production from TODGA and associated reprocessing systems. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Mar 05].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-hydrogen-production-from-todga-and-associated-reprocessing-systems(69b8a288-b46f-4777-917c-6bb56c475a4f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.779560.
Council of Science Editors:
Bates K. The radiolytic hydrogen production from TODGA and associated reprocessing systems. [Doctoral Dissertation]. University of Manchester; 2018. Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-hydrogen-production-from-todga-and-associated-reprocessing-systems(69b8a288-b46f-4777-917c-6bb56c475a4f).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.779560
Princeton University
12.
Gupta, Tanya.
Surface Phenomenon in Electrochemical Systems
.
Degree: PhD, 2017, Princeton University
URL: http://arks.princeton.edu/ark:/88435/dsp01cn69m674c
► Interfaces play a critical role in the performance of electrochemical systems. This thesis focusses on interfaces in batteries and covers aspects of interfacial morphologies of…
(more)
▼ Interfaces play a critical role in the performance of electrochemical systems. This thesis focusses on interfaces in batteries and covers aspects of interfacial morphologies of metal anodes, including Silicon, Lithium and Zinc. Growth and cycling of electrochemically grown Lithium and Zinc metal structures is investigated. A new morphology of Zinc, called Hyper Dendritic Zinc is introduced. It is cycled against Prussian Blue Analogues and is shown to improve the performance of this couple significantly. Characterization of materials is done using various electron microscopy techniques ranging from Low Energy Electron Microscope (LEEM), to high energy Transmission Electron Microscope (TEM). LEEM is used for capturing subtle surface phenomenon occurring during epitaxial process of electrolyte on anode. The system studied is Silicon (100) during Chemical Vapor Deposition of Ethylene Carbonate. A strain driven relaxation theory is modeled to explain the unusual restructuring of Si substrate. The other extreme, TEM, is often used to study electrochemical processes, without clear understanding of how the high-energy electron beam can influence the sample under investigation. Here, we study the
radiolysis in liquid cell TEM and emphasize on the enhancement of radiation dose at interfaces of the liquid due to generation of secondary and backscattered electrons from adjoining materials. It is shown that this effect is localized in a 10 nm region around the interface and can play a dominating role if there is an interface of liquid with heavy metals like Gold and Platinum which are frequently used as electrode materials. This analysis can be used to establish guidelines for experimentalists to follow, for accurate interpretation of their results.
Advisors/Committee Members: Steingart, Daniel A (advisor).
Subjects/Keywords: Battery;
Interfaces;
LEEM;
Prussian Blue;
Radiolysis;
Zinc
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APA ·
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Export
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Manager
APA (6th Edition):
Gupta, T. (2017). Surface Phenomenon in Electrochemical Systems
. (Doctoral Dissertation). Princeton University. Retrieved from http://arks.princeton.edu/ark:/88435/dsp01cn69m674c
Chicago Manual of Style (16th Edition):
Gupta, Tanya. “Surface Phenomenon in Electrochemical Systems
.” 2017. Doctoral Dissertation, Princeton University. Accessed March 05, 2021.
http://arks.princeton.edu/ark:/88435/dsp01cn69m674c.
MLA Handbook (7th Edition):
Gupta, Tanya. “Surface Phenomenon in Electrochemical Systems
.” 2017. Web. 05 Mar 2021.
Vancouver:
Gupta T. Surface Phenomenon in Electrochemical Systems
. [Internet] [Doctoral dissertation]. Princeton University; 2017. [cited 2021 Mar 05].
Available from: http://arks.princeton.edu/ark:/88435/dsp01cn69m674c.
Council of Science Editors:
Gupta T. Surface Phenomenon in Electrochemical Systems
. [Doctoral Dissertation]. Princeton University; 2017. Available from: http://arks.princeton.edu/ark:/88435/dsp01cn69m674c
Penn State University
13.
Krise, Keith Michael.
THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE.
Degree: 2011, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/12249
► There is a great deal of work on proteins in aqueous solutions aimed at understanding their radiological and ultrasonic damage and the associated biochemical impacts.…
(more)
▼ There is a great deal of work on proteins in aqueous solutions aimed at understanding their radiological and ultrasonic damage and the associated biochemical impacts. However, how these data are used and interpreted when proteins (and other biomacromolecules) are organized in three-dimensional structures (as in real biological systems) has been explored to a much lesser extent even though in such structural arrangements important and unique physicochemical effects exist. In this Dissertation, the effects of such physicochemical properties, including microviscosity, bound water, and protein mobility, on the radiolytic and sonolytic denaturation of hen egg white were studied. To improve our understanding of the molecular level effects of radiation and ultrasound on protein biomacromolecular gels (as a step towards complex biological systems), the thick fraction of egg white is used as a convenient and economical model system for the luminal mammalian mucous membrane as both are hydrogels (~90% water) that contain highly glycosylated, cysteine-rich and hydrated proteins.
In this Dissertation, measurement of rate constants for diffusion-controlled reactions were used to investigate the microlevel rheological properties of macromolecular aqueous solutions and protein gels; however, the kinetics of reactions with highly charged reactants were found to be complicated by ionic effects. We developed a method to give a second order rate constant where these ionic effects were not operative (Krise et al. 2010. Phys. Chem. Chem. Phys. 12: 7695). As a precursor to studies in biological macromolecular aqueous gels (hen egg white thick fraction), we assessed the macro- and microscale rheological properties of a simple polymeric model system, poly(vinyl alcohol) (PVA) solutions [up to 10% (w/w)], using diffusion-controlled reaction rate constants and electric conductivity measurements. From these measurements, PVA aqueous solutions can be envisioned as dynamic systems comprising hydrated PVA molecules (two or less water molecules per OH group) and “interconnected water pools” (located between macromolecules), the rheological properties of which are very similar to that of bulk water (Krise et al. 2011. J. Phys. Chem. B. 115: 2759). These studies were extended to assess the physicochemical properties of the thick fraction of egg white. Measurements of the rate constants of diffusion-controlled reactions occurring within the gel (and corresponding activation energies) and electric conductivity revealed that the thick fraction of egg white can be envisioned as a three-dimensional network comprising hydrated protein molecules (held by intermolecular S-S bridges) surrounded by water pools and channels (of non-uniform diameters) that have a microviscosity very similar to that of bulk water (Krise and Milosavljevic. 2011. Biomacromolecules. 12: 2351).
With the physicochemical properties of the thick and thin fractions of hen egg white now more thoroughly characterized, a deeper understanding of early events in radiation…
Advisors/Committee Members: Bratoljub Milosavljevic, Dissertation Advisor/Co-Advisor, Bratoljub Milosavljevic, Committee Chair/Co-Chair, Alan James Benesi, Committee Chair/Co-Chair, Philip C. Bevilacqua, Committee Member, Mark Maroncelli, Committee Member, Gary Lee Catchen, Committee Member.
Subjects/Keywords: egg white protein; sonolysis; radiolysis; pulse radiolysis; diffusion-controlled reaction; microviscosity; bound water
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Krise, K. M. (2011). THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Krise, Keith Michael. “THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE.” 2011. Thesis, Penn State University. Accessed March 05, 2021.
https://submit-etda.libraries.psu.edu/catalog/12249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Krise, Keith Michael. “THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE.” 2011. Web. 05 Mar 2021.
Vancouver:
Krise KM. THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Mar 05].
Available from: https://submit-etda.libraries.psu.edu/catalog/12249.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Krise KM. THE EFFECTS OF MICROVISCOSITY, BOUND WATER AND PROTEIN MOBILITY ON THE RADIOLYSIS AND SONOLYSIS OF HEN EGG WHITE. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12249
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
University of Manchester
14.
Donoclift, Thomas.
The radiolytic steady-state and factors controlling H2 production.
Degree: PhD, 2017, University of Manchester
URL: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-steadystate-and-factors-controlling-h2-production(9ae4c85f-5d07-469a-831a-dd2ffea3d902).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728243
► Sellafield is home to the UK's largest repository of nuclear waste, including reprocessed uranium and plutonium, as well as a backlog of unprocessed used fuel…
(more)
▼ Sellafield is home to the UK's largest repository of nuclear waste, including reprocessed uranium and plutonium, as well as a backlog of unprocessed used fuel and waste kept in outdated storage facilities; commonly referred to as "legacy waste". For this reason, Sellafield has often been called the most hazardous place in Western Europe and as such, is currently undergoing a multi-billion pound decommissioning and clean-up operation. Each on-site facility has unique challenges associated with it, many of them presenting situations where the radiation chemistry aspects of the material degradation are not well understood. The key factors that can affect water radiolysis processes in the Sellafield challenges are a high pH environment, the presence of magnesium hydroxide, the presence of iron oxide, and the presence of organic materials. This work examines the effect each of these factors has on H2 and H2O2 production in water radiolysis as well as developing a computational model to offer some understanding to the kinetic behaviour of water radiolysis under such conditions. The computational model was able to replicate experimental measurements of radiolytic H2 and H2O2 production in both aerated and deaerated water at neutral pH, and provide a further understanding of the role of dissolved oxygen in water radiolysis. Measurements of H2O2 from solutions containing NaOH have shown that an increase in pH generally results in a higher steady state of H2O2, while measurements of H2 show a similar increase with a maximum production rate at pH ~11. The model was also able to closely replicate these experimental measurements with some over prediction, which highlights a gap in our understanding of high pH radiolysis and also brings into question the validity of the estimated rate constant for the reaction: O- + O2- → 2OH- + O2 k= 6.0×108 M-1 s-1 which was originally determined from kinetic model calculations designed to describe the decay of ozonide (O3ˉ) during pulse-radiolysis studies of high pH solutions conducted byK. Sehested et al in 1982.The radiolysis of magnesium hydroxide slurry also resulted in an increased yield of hydrogen gas but had little effect on the yield of hydrogen peroxide. The hydrogen yield was 0.52 molecules per 100eV while a NaOH solution of equivalent pH gave a yield of 0.27, however interference from carbonate may be the cause of the increased yield. A surface effect was also estimated to contribute 0.05 molecules per 100 eV to the hydrogen gas yield. Hydrogen gas and hydrogen peroxide was measured from the radiolysis of aqueous methanol. This was modelled with a near agreement, but modifications to the model were necessary; highlighting areas of the model that need improvement, as well as providing a reaction scheme from which a more comprehensive model for aqueous methanol radiolysis could be developed.
Subjects/Keywords: 541; computational modelling; water radiolysis; hydrogen production; nuclear waste; radiation chemistry; radiolysis
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APA ·
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Manager
APA (6th Edition):
Donoclift, T. (2017). The radiolytic steady-state and factors controlling H2 production. (Doctoral Dissertation). University of Manchester. Retrieved from https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-steadystate-and-factors-controlling-h2-production(9ae4c85f-5d07-469a-831a-dd2ffea3d902).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728243
Chicago Manual of Style (16th Edition):
Donoclift, Thomas. “The radiolytic steady-state and factors controlling H2 production.” 2017. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-steadystate-and-factors-controlling-h2-production(9ae4c85f-5d07-469a-831a-dd2ffea3d902).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728243.
MLA Handbook (7th Edition):
Donoclift, Thomas. “The radiolytic steady-state and factors controlling H2 production.” 2017. Web. 05 Mar 2021.
Vancouver:
Donoclift T. The radiolytic steady-state and factors controlling H2 production. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2021 Mar 05].
Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-steadystate-and-factors-controlling-h2-production(9ae4c85f-5d07-469a-831a-dd2ffea3d902).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728243.
Council of Science Editors:
Donoclift T. The radiolytic steady-state and factors controlling H2 production. [Doctoral Dissertation]. University of Manchester; 2017. Available from: https://www.research.manchester.ac.uk/portal/en/theses/the-radiolytic-steadystate-and-factors-controlling-h2-production(9ae4c85f-5d07-469a-831a-dd2ffea3d902).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.728243
15.
Frances, Laëtitia.
Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage.
Degree: Docteur es, Chimie, 2014, Besançon
URL: http://www.theses.fr/2014BESA2061
► L’ autoradiolyse de l’eau tritiée HTO, adsorbée dans les zéolithes 4A présente des différences par rapport à la radiolyse de l’eau libre. Nous avons étudié…
(more)
▼ L’ autoradiolyse de l’eau tritiée HTO, adsorbée dans les zéolithes 4A présente des différences par rapport à la radiolyse de l’eau libre. Nous avons étudié les rôles joués par les zéolithes sur la décomposition de l’eau, en portant un intérêt particulier à l’influence de leur taux de chargement en eau. Premièrement, en exposant les zéolithes aux irradiations externes, nous avons reproduit sélectivement les gammes de dose oude débit de dose constatées en situation d’entreposage.Cette première approche permet de caractériser les échantillons irradiés, car non contaminés, et ainsi de mettre en évidence la très bonne stabilité des zéolithes4A. Puis, le suivi de la radiolyse dans le cas précis de l’eau tritiée adsorbée dans les zéolithes 4A nous a permis d’obtenir des rendements radiolytiques quantitativement représentatifs de ceux relevés en situation d’entreposage. La comparaison des quantités de gaz dégagés pour les trois types de rayonnements étudiés (électrons accélérés à 10 MeV, ! induits par la désintégration du 137Cs et "- induit par la désintégration du tritium) a montré l’importante influence du débit de dose plutôt que de la dose totale déposée. De plus,quelle que soit la source de rayonnement utilisée, les zéolithes 4A favorisent initialement le dégagement de dihydrogène et secondairement de dioxygène. A contrario, elles favorisent ensuite, selon leur taux d’hydratation, la recombinaison de ces deux produits de radiolyse. Différents processus radiolytiques etc atalytiques sont discutés pour expliquer ce résultat majeur, qui n’apparait pas lors de la radiolyse de l’eau libre et qui tend à valider ce mode d’entreposage.
Self-radiolysis of tritiated water (HTO) adsorbed in zeolites 4A shows differences compared tofree-bulk water radiolysis. We studied the roles of zeolites on that. We took special care with the influence of water loading ratio. We first exposed zeolites toexternal irradiations, reproducing selectively the doseor the dose rate measured in the case of tritiated waterstorage. This strategy enables the characterising of the samples after their irradiation since they are notcontaminated by tritium. Those experiments revealedthe high stability of zeolites 4A. We used a secondapproach which consisted in studying the precise case of self-radiolysis of tritiated water, in order to obtain radiolytic yields representative of HTO storage. The comparison between the quantities of gas released when zeolites are exposed to the three different sources that we used (electrons accelerated at 10 MeV, ! released by radioactive decay of 137Cs and "- released by radioactive decay of tritium) revealed the strong influence of the dose rate. More over, whatever the irradiation source,zeolites 4A first favour hydrogen release andsecondarily oxygen release too. On the contrary,zeolites favour next a recombination between those radiolytic products, with a dependence on their water loading ratio. Several processes are discussed to explain such a phenomena, not noticed during the free-bulkwater radiolysis
Advisors/Committee Members: Groetz, Jean-Emmanuel (thesis director).
Subjects/Keywords: Zéolite; Zéolithe; Radiolyse; Autoradiolyse; Tritium; Eau tritiée; Zeolite; Zeolithe; Radiolysis; Self-Radiolysis; Tritium; Tritiated water; 541.3
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Frances, L. (2014). Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage. (Doctoral Dissertation). Besançon. Retrieved from http://www.theses.fr/2014BESA2061
Chicago Manual of Style (16th Edition):
Frances, Laëtitia. “Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage.” 2014. Doctoral Dissertation, Besançon. Accessed March 05, 2021.
http://www.theses.fr/2014BESA2061.
MLA Handbook (7th Edition):
Frances, Laëtitia. “Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage.” 2014. Web. 05 Mar 2021.
Vancouver:
Frances L. Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage. [Internet] [Doctoral dissertation]. Besançon; 2014. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2014BESA2061.
Council of Science Editors:
Frances L. Radiolyse de l'eau confinée dans les zéolithes 4A : application à l'entreposage d'eau tritiée : Radiolysis of water confined in zeolites 4A : application to tritiated water storage. [Doctoral Dissertation]. Besançon; 2014. Available from: http://www.theses.fr/2014BESA2061
University of California – Irvine
16.
Pearson, Jeremy.
High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands.
Degree: Chemical and Biochemical Engineering, 2014, University of California – Irvine
URL: http://www.escholarship.org/uc/item/1j49x260
► The response to high linear energy transfer (LET) radiation of a variety of aqueous systems such as biological systems and the Fricke dosimeter has frequently…
(more)
▼ The response to high linear energy transfer (LET) radiation of a variety of aqueous systems such as biological systems and the Fricke dosimeter has frequently been studied in the literature. Linear energy transfer is a unique property of radiation which describes the special distribution with which energy from radiation is deposited and concentrated as it travels through matter and can have implications on degradation within the matter itself. The four types of ionizing radiation alpha, beta, gamma, and neutrons have different LET, classified from low for gamma and beta, to high for alpha. All types of ionizing radiation are encountered in used nuclear fuel. This radiation induces damage to solvent extraction processes designed to recycle used nuclear fuel which results in impaired selectivity and reduced process efficiencies. While the effects of low LET radiation on organic solutions have been widely studied, the effects of high LET radiation have not due to difficulties in studying this type of radiation such as short radiation path lengths on the order of 50 μm. This study investigates the effects of high LET radiation deposited in situ from fission products lithium and helium emitted in the 10B(n,α)7Li reaction. The reaction, studied previously in aqueous systems, is applied here to organic solvents containing ligands used in solvent extraction. Ligands studied were TBP, CMPO, and TODGA utilized in the PUREX and TRUEX processes. Results demonstrate that high LET radiation has the tendency to reduce degradation to the parent compound due to reactive products being consumed within the radiation track, while encouraging secondary degradation products to occur within the radiation track. Products of these secondary degradation reactions may be more detrimental to the solvent extraction process than primary degradation products and are therefore important to understand and monitor. Results also demonstrate the utility of using the 10B(n,α)7Li reaction to study the effects of high LET radiation on organic solutions encountered in used nuclear fuel recycling processes. Understanding the effects of both high and low LET radiation on solvent extraction processes will facilitate early screening of novel ligand susceptibility to radiation induced degradation while also providing a more comprehensive picture of degradation encountered during radiolysis.
Subjects/Keywords: Chemical engineering; Radiolysis; Solvent Extraction; Used Nuclear Fuel Recycling
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APA (6th Edition):
Pearson, J. (2014). High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands. (Thesis). University of California – Irvine. Retrieved from http://www.escholarship.org/uc/item/1j49x260
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pearson, Jeremy. “High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands.” 2014. Thesis, University of California – Irvine. Accessed March 05, 2021.
http://www.escholarship.org/uc/item/1j49x260.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pearson, Jeremy. “High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands.” 2014. Web. 05 Mar 2021.
Vancouver:
Pearson J. High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands. [Internet] [Thesis]. University of California – Irvine; 2014. [cited 2021 Mar 05].
Available from: http://www.escholarship.org/uc/item/1j49x260.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pearson J. High Linear Energy Transfer Radiolysis of Solvent Extraction Ligands. [Thesis]. University of California – Irvine; 2014. Available from: http://www.escholarship.org/uc/item/1j49x260
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
Colliaux, Anthony.
Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -.
Degree: Docteur es, Physique, 2009, Université Claude Bernard – Lyon I
URL: http://www.theses.fr/2009LYO10297
► Il s’agit d’étudier les effets du TEL du rayonnement, d’un soluté (oxygène, antioxydant, scavengers...) et d’une géométrie de confinement sur les processus physiques et chimiques.…
(more)
▼ Il s’agit d’étudier les effets du TEL du rayonnement, d’un soluté (oxygène, antioxydant, scavengers...) et d’une géométrie de confinement sur les processus physiques et chimiques. Nos études sur la production de radicaux libres en fonction de la pression d’oxygène et du TEL du rayonnement nous ont permis de noter une similitude entre la production des radicaux O2- / HO2 et l’effet oxygène décrit en radiothérapie. Ces résultats confortent l’idée que ce couple de radicaux pourraient jouer un rôle dans l’effet oxygène (radiothérapie) et expliqueraient la disparition de cet effet à haut TEL (hadronthérapie). Nous avons aussi montré que cette similitude persistait en présence de Glutathion (antioxydant majoritaire dans le noyau cellulaire)
-
Advisors/Committee Members: Beuve, Michaël (thesis director), Rodriguez-Lafrasse, Claire (thesis director).
Subjects/Keywords: Radiolyse; Simulations numériques; Radiobiologie; Radiolysis; Digital simulations; Radiobiology; 530
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Export
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APA (6th Edition):
Colliaux, A. (2009). Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -. (Doctoral Dissertation). Université Claude Bernard – Lyon I. Retrieved from http://www.theses.fr/2009LYO10297
Chicago Manual of Style (16th Edition):
Colliaux, Anthony. “Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -.” 2009. Doctoral Dissertation, Université Claude Bernard – Lyon I. Accessed March 05, 2021.
http://www.theses.fr/2009LYO10297.
MLA Handbook (7th Edition):
Colliaux, Anthony. “Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -.” 2009. Web. 05 Mar 2021.
Vancouver:
Colliaux A. Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -. [Internet] [Doctoral dissertation]. Université Claude Bernard – Lyon I; 2009. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2009LYO10297.
Council of Science Editors:
Colliaux A. Implication de l’oxygène et des anti-oxydants dans le processus de radiolyse de l’eau induit par l’irradiation aux ions de haute énergie : simulations numériques pour la radiobiologie : -. [Doctoral Dissertation]. Université Claude Bernard – Lyon I; 2009. Available from: http://www.theses.fr/2009LYO10297
University of Manchester
18.
Huerta, Monica.
Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems.
Degree: 2010, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:99633
► Experimental measurements in conjunction with stochastic simulations are used to determine hydrogen atom yields in the gamma and heavy ions radiolysis of aqueous solutions of…
(more)
▼ Experimental measurements in conjunction with
stochastic simulations are used to determine hydrogen atom yields
in the gamma and heavy ions
radiolysis of aqueous solutions of
formate and deuterated formate ions.In
radiolysis, the hydrogen
atom is produced directly by the fragmentation of water excited
states, and during the diffusion-kinetic evolution of the radiation
track by the intra-track reaction of eaq- with Haq+ up to the
microsecond timescale. The yield of H• is relatively small, but it
is fundamentally very important. An accurate examination of the H
atom yields after
radiolysis will make possible a better
understanding of the initial steps of the radiolytic decomposition
of water. The competition between H atom combination reactions and
its formation by reaction of eaq- with Haq+ makes predictions of
the H atom kinetics very difficult. Hydrogen atom yields were
determined by difference measurements of H2 yields and
directmeasurements of HD yields when using deuterated formate as H•
scavenger. While the total H2 yield measured is always greater for
alpha than for gamma
radiolysis, the H atom yield is observed to be
smaller. The addition of selected scavengers of the hydrated
electron and its precursors reveals a stronger correlation of the H
atom formation on the precursor to the hydrated electron rather
than the hydrated electron itself. Scavengable H• yields strongly
decrease as the concentration of the electron scavenger
increases.Stochastic track chemistry calculations were used to
analyze the measured experimental yields and to elucidate the
underlying kinetics.
Advisors/Committee Members: Pimblott, Simon.
Subjects/Keywords: Hydrogen; Radiolysis; Gamma; Heavy Ions
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APA ·
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MLA ·
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CSE |
Export
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APA (6th Edition):
Huerta, M. (2010). Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:99633
Chicago Manual of Style (16th Edition):
Huerta, Monica. “Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems.” 2010. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:99633.
MLA Handbook (7th Edition):
Huerta, Monica. “Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems.” 2010. Web. 05 Mar 2021.
Vancouver:
Huerta M. Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems. [Internet] [Doctoral dissertation]. University of Manchester; 2010. [cited 2021 Mar 05].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:99633.
Council of Science Editors:
Huerta M. Hydrogen atom formation in the gamma and heavy ion
radiolysis of aqueous systems. [Doctoral Dissertation]. University of Manchester; 2010. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:99633
University of Michigan
19.
Ledbetter, Abram.
Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications.
Degree: PhD, Applied Physics, 2017, University of Michigan
URL: http://hdl.handle.net/2027.42/140906
► Photovoltaics using polymer semiconductors as active materials require donor/acceptor (D/A) interfaces to convert excitons into freed charges. In the absence of chain defects, excited states…
(more)
▼ Photovoltaics using polymer semiconductors as active materials require donor/acceptor (D/A) interfaces to convert excitons into freed charges. In the absence of chain defects, excited states and charges migrate most efficiently via intramolecular pathway. This thesis is concerned with understanding dynamics of intramolecular transport, charge transfer at intramolecular D/A interfaces, and the nature of charges and excited states which give rise to the observed phenomena.
Three conjugated polymers are investigated: MEH-PPV (typical bandgap), pDPP2FT (low bandgap), and pCVPPV (high bandgap). Compounds investigated as electron acceptors relative to these polymers were oligomers fSF-PPV and SF-PPV for MEH-PPV, perylene diimide (PDI) for pDPP2FT, and MEH-PPV for pCVPPV. As a prototypical conjugated polymer, MEH-PPV is investigated most extensively – exploring the physical and electronic properties of its charged and excited states, energetics of those states, and the rates and nature of charge and exciton capture via
radiolysis. Comparisons and contrasts are made with non-conventional pCVPPV and pDPP2FT.
Radiolysis is employed as a powerful technique for obtaining optical signatures and reaction kinetics of radical ions and triplets for oligomers and polymers by ensuring a small fraction of chains in solution are injected with a single charge or excited state. This technique facilitates unambiguous assignment of specific species in contrast with other techniques for which multiple species are formed but difficult to resolve. Mistaken assignment of species have resulted from such ambiguities as well as conflicting theoretical models predicting the number of optical transitions expected for these species. Rates of formation for charged states are compared with theoretical diffusion controlled rates, and optical transitions of the optical signatures are compared with those predicted by the commonly referenced Fesser-Bishop-Campbell (FBC) model predicting two transitions for a radical ion (polaron) and one for a radical diion (bipolaron). Departures from this model included fSF-PPV and SF-PPV radical ions which exhibited 3 transitions (one quasi-forbidden) and pDPP2FT radical ions which exhibited 1 transition while pDPP2FT diions exhibited two.
Using optical detection provided the known optical signatures, electron and exciton dynamics in acceptor-capped MEH-PPV and acceptor-capped pDPP2FT are investigated. Acceptor radical anion formation following electron or exciton capture by the chain is interpreted as rate limited by either electron transport along the chain or by electron transfer at the D/A interface. In PDI-capped pDPP2FT, a lower limit for electron mobility under zero-field conditions is estimated as 3.37 x 10-3 cm2/Vs, more than an order of magnitude larger than observed in polythiophene. This mobility study for a D-A copolymer under zero field conditions is the first of its kind. In a series of Donor-bridge-Acceptor (DBA) diblocks consisting of MEH-PPV and (f)SF-PPV with varying lengths of aliphatic…
Advisors/Committee Members: Clarke, Roy (committee member), Miller, John R. (committee member), Guo, L Jay (committee member), Kurdak, Cagliyan (committee member), Maldonado, Stephen (committee member).
Subjects/Keywords: conjugated polymers; radiolysis; diblock copolymers; Chemistry; Physics; Science (General); Science
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APA ·
Chicago ·
MLA ·
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Export
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APA (6th Edition):
Ledbetter, A. (2017). Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/140906
Chicago Manual of Style (16th Edition):
Ledbetter, Abram. “Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications.” 2017. Doctoral Dissertation, University of Michigan. Accessed March 05, 2021.
http://hdl.handle.net/2027.42/140906.
MLA Handbook (7th Edition):
Ledbetter, Abram. “Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications.” 2017. Web. 05 Mar 2021.
Vancouver:
Ledbetter A. Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications. [Internet] [Doctoral dissertation]. University of Michigan; 2017. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/2027.42/140906.
Council of Science Editors:
Ledbetter A. Investigations of Excited States and Radical Ions in ?-Conjugated Polymers of Interest for Photovoltaic Applications. [Doctoral Dissertation]. University of Michigan; 2017. Available from: http://hdl.handle.net/2027.42/140906
University of Illinois – Chicago
20.
Wang, Canhui.
In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells.
Degree: 2016, University of Illinois – Chicago
URL: http://hdl.handle.net/10027/20956
► Recent developments in microfabrication technology have resulted a surge of interest in in-situ transmission electron microscopy (TEM). This dissertation will focus on in-situ imaging and…
(more)
▼ Recent developments in microfabrication technology have resulted a surge of interest in in-situ transmission electron microscopy (TEM). This dissertation will focus on in-situ imaging and spectroscopy of liquids and materials suspended in liquids using aberration-corrected scanning transmission electron microscopy. I have developed a novel approach to in-situ microscopy that allows the encapsulation of liquid-containing samples using monolayers of graphene. Transmission electron microscopy and spectroscopy is utilized to characterize several beam sensitive materials and processes in a liquid environment at atomic resolution, obtaining information including structures, elemental distribution, bonding information, even phase change and valence state transition in physical and biochemical activities.
Radiolysis modeling is performed to assist liquid cell design, as well as control of electron microscope parameters, allowing liquid chemistry modulation by electronic signal. This also allows implementation of graphene liquid cells as nano-scale chemical reactors which enable the precise control of radial and ionic concentration for reaction kinetics modulation as a function of space and time. These approaches can be combined to solve problems in a liquid phase with unprecedented resolution.
Advisors/Committee Members: Klie, Robert (advisor), Ansari, Anjum (Committee Chair), Nicholls, Alan (committee member), Schlossman, Mark (committee member), Shokuhfar, Tolou (committee member), Takoudis, Christos G. (committee member).
Subjects/Keywords: Graphene Liquid Cell; Electron Microscopy; EELS; Radiolysis; Chemical Reactor
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APA (6th Edition):
Wang, C. (2016). In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/20956
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Wang, Canhui. “In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells.” 2016. Thesis, University of Illinois – Chicago. Accessed March 05, 2021.
http://hdl.handle.net/10027/20956.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wang, Canhui. “In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells.” 2016. Web. 05 Mar 2021.
Vancouver:
Wang C. In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells. [Internet] [Thesis]. University of Illinois – Chicago; 2016. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10027/20956.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wang C. In-situ TEM and Spectroscopy of Structures and Processes in Graphene Sandwiches and Graphene Liquid Cells. [Thesis]. University of Illinois – Chicago; 2016. Available from: http://hdl.handle.net/10027/20956
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
21.
Kabi, Ashwini.
Some aspects of radiation chemistry of aromatic amines.
Degree: PhD, 1966, Imperial College London
URL: http://hdl.handle.net/10044/1/17369
Subjects/Keywords: 572; Aqueous solutions, Radiolysis
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APA (6th Edition):
Kabi, A. (1966). Some aspects of radiation chemistry of aromatic amines. (Doctoral Dissertation). Imperial College London. Retrieved from http://hdl.handle.net/10044/1/17369
Chicago Manual of Style (16th Edition):
Kabi, Ashwini. “Some aspects of radiation chemistry of aromatic amines.” 1966. Doctoral Dissertation, Imperial College London. Accessed March 05, 2021.
http://hdl.handle.net/10044/1/17369.
MLA Handbook (7th Edition):
Kabi, Ashwini. “Some aspects of radiation chemistry of aromatic amines.” 1966. Web. 05 Mar 2021.
Vancouver:
Kabi A. Some aspects of radiation chemistry of aromatic amines. [Internet] [Doctoral dissertation]. Imperial College London; 1966. [cited 2021 Mar 05].
Available from: http://hdl.handle.net/10044/1/17369.
Council of Science Editors:
Kabi A. Some aspects of radiation chemistry of aromatic amines. [Doctoral Dissertation]. Imperial College London; 1966. Available from: http://hdl.handle.net/10044/1/17369
University of Notre Dame
22.
Sarah Catherine Reiff.
Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>.
Degree: Physics, 2015, University of Notre Dame
URL: https://curate.nd.edu/show/w9504x5413z
► The radiolysis of three iron oxides, two copper oxides, and aluminum oxide with varying amounts of water were performed using γ-rays and 5 MeV…
(more)
▼ The
radiolysis of three
iron oxides, two copper oxides, and aluminum oxide with varying
amounts of water were performed using γ-rays and 5 MeV
4He ions. The adsorbed water on the surfaces
was characterized using temperature programmed desorption and
diffuse reflectance infrared spectroscopy, which indicated that all
of the oxides had chemisorbed water on the surface. Physisorbed
water was observed on the
Fe
2O
3 and
Al
2O
3 surfaces as
well. Molecular hydrogen was produced from adsorbed water only on
Fe
2O
3 and
Al
2O
3, while the
other compounds did not show any hydrogen production due to the low
amounts of water on the surfaces. Slurries of varying amounts of
water were also examined for hydrogen production, and they showed
yields that were greater than the yield for bulk water. However,
the yields of hydrogen from the copper compounds were much lower
than those of the iron suggesting that the copper oxides are
relatively inert to radiation induced damage to nearby
water. X-ray diffraction
measurements did not show any indication of changes to the bulk
crystal structure due to
radiolysis for any of the oxides. The
surfaces of the oxides were analyzed using Raman spectroscopy and
X-ray photoelectron spectroscopy (XPS). For the iron samples, FeO
and Fe
3O
4, Raman
spectroscopy revealed areas of
Fe
2O
3 had formed
following irradiation with He ions. XPS indicated the formation of
a new oxygen species on the iron oxide surfaces. Raman spectroscopy
of the copper oxides did not reveal any changes in the surface
composition, however, XPS measurements showed a decrease in the
amount of OH groups on the surface of Cu
2O,
while for the CuO samples the amount of OH groups were found to
increase following
radiolysis. Pristine
Al
2O
3 showed the
presence of a surface oxyhydroxide layer which was observed to
decrease following
radiolysis, consistent with the formation of
molecular hydrogen.
Advisors/Committee Members: Jay LaVerne, Committee Co-Chair, Bruce Bunker, Committee Member, Michael Wiescher, Committee Co-Chair, Philippe Collon, Committee Member, Anthony Hyder, Committee Member.
Subjects/Keywords: Radiolysis; Water; Iron Oxides; Hydrogen Production; Copper Oxides
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APA (6th Edition):
Reiff, S. C. (2015). Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>. (Thesis). University of Notre Dame. Retrieved from https://curate.nd.edu/show/w9504x5413z
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Reiff, Sarah Catherine. “Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>.” 2015. Thesis, University of Notre Dame. Accessed March 05, 2021.
https://curate.nd.edu/show/w9504x5413z.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Reiff, Sarah Catherine. “Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>.” 2015. Web. 05 Mar 2021.
Vancouver:
Reiff SC. Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>. [Internet] [Thesis]. University of Notre Dame; 2015. [cited 2021 Mar 05].
Available from: https://curate.nd.edu/show/w9504x5413z.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Reiff SC. Radiation Induced Chemical Activity at Iron and Copper Oxide
Surfaces</h1>. [Thesis]. University of Notre Dame; 2015. Available from: https://curate.nd.edu/show/w9504x5413z
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Clément, Marie.
Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles.
Degree: Docteur es, Chimie, 2017, Université Paris-Saclay (ComUE)
URL: http://www.theses.fr/2017SACLS449
► Au cours de ces travaux de thèse, la synthèse de différents calix[8]arènes et complexes calixarèniques mono- et bimétalliques a été réalisée, en vue de préparer…
(more)
▼ Au cours de ces travaux de thèse, la synthèse de différents calix[8]arènes et complexes calixarèniques mono- et bimétalliques a été réalisée, en vue de préparer des nanoparticules par radiolyse. Les différentes étapes de synthèse ont été optimisées et différentes fonctionnalisations ont été testées pour améliorer la solubilité et le greffage des calixarènes à la surface des nanoparticules. Les nanoparticules métalliques obtenues à partir de sels d’argent et/ou d’or et stabilisées par les calix[8]arènes dans l’éthanol sont sphériques, très petites et très homogènes en taille (inférieures à 5 nm). Les analyses HAADF/STEM-EDX réalisées sur les nanoparticules Au-Ag ont permis de mettre en évidence le caractère bimétallique de ces nanoparticules et la présence de très petits agrégats de tailles inférieures à 1 nm. Les nanoparticules d’argent synthétisées ont montré leur efficacité en catalyse de réduction de composés nitrés. Ces résultats montrent l’efficacité des calixarènes pour stabiliser de très petites nanoparticules, tout en permettant une activité catalytique. Des nanoparticules mono- et bimétalliques (Au et Au-Ag) ont également été obtenues à partir des complexes calixarèniques par voie radiolytique. Cette voie de synthèse a permis d’augmenter la quantité de métal dans le milieu sans accroître la taille des nanoparticules formées, qui reste de l’ordre de 3-4 nm. Cette particularité peut être liée à la présence d’échanges rapides entre des clusters formés entre les calixarènes et les complexes métalliques précurseurs, mis en évidence par RMN. Toutefois, cette étude mérite d’être poursuivie.
During this thesis, the synthesis of different calix[8]arenes and mono- and bimetallic calixarenic complexes was performed in order to produce nanoparticles by radiolysis. The different steps of the synthesis were optimized and different functionalizations were tested to improve the solubility and the anchoring at the nanoparticles surface. Metallic nanoparticles were generated from silver and/or gold salts and stabilized by calix[8]arenes in ethanol. The obtained spherical nanoparticles were very small (less than 5 nm) and homogeneous in size. HAADF/STEM-EDS analyses performed on Au-Ag nanoparticles revealed their bimetallic character and the presence of very small aggregates of less than 1 nm. Catalyticefficiency of the silver nanoparticles was tested through nitreous compound reduction.These results show the calixarenes efficiency to stabilize small nanoparticles while allowing the catalytic activity. Mono- and bimetallic nanoparticles (Au and Au-Ag) were also synthesized by radiolysis from the calixarenic complexes. This synthetic pathway allowed the increase of the amount of metal used during the synthesis without increasing the size of the obtained nanoparticles (3-4 nm). This particularity can be related to fast exchange phenomena between clusters formed by the calixarenes and the metallic precursors complexes, that were shown by NMR spectroscopy. However, this NMR study needs to be pursued.
Advisors/Committee Members: Lampre, Isabelle (thesis director).
Subjects/Keywords: Nanoparticules; Calixarènes; Radiolyse; Or; Argent; Nanoparticles; Calixarenes; Radiolysis; Gold; Silver
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Clément, M. (2017). Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2017SACLS449
Chicago Manual of Style (16th Edition):
Clément, Marie. “Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles.” 2017. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed March 05, 2021.
http://www.theses.fr/2017SACLS449.
MLA Handbook (7th Edition):
Clément, Marie. “Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles.” 2017. Web. 05 Mar 2021.
Vancouver:
Clément M. Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2017. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2017SACLS449.
Council of Science Editors:
Clément M. Calixarènes pour la synthèse radiolytique de nanoparticules métalliques : Calixarenes for the radiolytic synthesis of metallic nanoparticles. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2017. Available from: http://www.theses.fr/2017SACLS449
24.
Moore, Mark Alan.
The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin.
Degree: 2017, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_graddiss/4848
► Interest in the use of alpha radiation emitters in radio immunotherapy is due to the high linear energy transfer and short range of alpha radiation.…
(more)
▼ Interest in the use of alpha radiation emitters in radio immunotherapy is due to the high linear energy transfer and short range of alpha radiation. These properties enable the targeting of single tumor cells with diminished risk of damaging the surrounding tissue. Significant research has been done in the separation of the alpha emitter Bismuth-213 from its parent solution of Actinium-225 using organic resins. Due to radiolytic damage to the resin emphasis in the research has focused on the rapid elution of Bismuth-213 or storage of the parent Actinium-225 solution on a more robust resin. Inorganic ion exchange resins have shown a greater resistance to radiolytic damage than organic resins. If an inorganic resin could retain its structural integrity then Actinium-225 could be loaded on an inorganic resin bed with a clinical dose of Bismuth-213 eluted from the column when needed. The performance of two inorganic ion exchange resins, Isolute SCX and Isolute SCX-2, were compared to the performance of the organic resin AG-50X8 in the separation of the radionuclide Bismuth-213 from its parent solution of Actinium-225. Performance was based on the percent of Bismuth-213 available eluted, and the breakthrough of Actinium-225. It was found that Isolute SCX and Isolute SCX-2 produced less of the Bismuth-213 available on the column. The breakthrough of the Actinium-225 for all three columns was well below the toxicity level. Further tests showed that Isolute SCX and Isolute SCX-2 suffered less apparent damage from radiation generated in situ.A comparison of the ion exchange properties of the inorganic resin Isolute SCX-2 with alkali metal cations, including francium, to several better known organic resins is also presented. With hydrophobic organic ion exchange resins the selectivity of alkali metal cations tends to increase as the mass of the ion increases while the selectivity's for the less hydrophobic Isolute SCX-2 increased from francium to cesium to potassium to sodium. Lithium had the lowest selectivity, likely due to the strong hydration of the ion, and rubidium did not follow the selectivity trends of the other alkali ions.
Subjects/Keywords: actinium; separations; bismuth; radiolysis
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CSE |
Export
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APA (6th Edition):
Moore, M. A. (2017). The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/4848
Chicago Manual of Style (16th Edition):
Moore, Mark Alan. “The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin.” 2017. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed March 05, 2021.
https://trace.tennessee.edu/utk_graddiss/4848.
MLA Handbook (7th Edition):
Moore, Mark Alan. “The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin.” 2017. Web. 05 Mar 2021.
Vancouver:
Moore MA. The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2017. [cited 2021 Mar 05].
Available from: https://trace.tennessee.edu/utk_graddiss/4848.
Council of Science Editors:
Moore MA. The Separation of Bismuth-213 from Actinium-225 and the Ion Exchange Properties of the Alkali Metal Cations with an Inorganic Resin. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2017. Available from: https://trace.tennessee.edu/utk_graddiss/4848
25.
Horne, Gregory Peter.
An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems.
Degree: 2015, University of Manchester
URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:275818
► Plutonium Uranium Reduction EXtraction (PUREX) technology is a solvent extraction process used to recover plutonium and uranium from spent nuclear fuel. The solvent system is…
(more)
▼ Plutonium Uranium Reduction EXtraction (PUREX)
technology is a solvent extraction process used to recover
plutonium and uranium from spent nuclear fuel. The solvent system
is composed of an aqueous nitric acid phase in contact with an
organic phase made up of tributyl phosphate in an organic diluent.
During the separation process, the PUREX solvent system is
subject
to an intense multi-component radiation field (gamma rays, alpha
particles, beta particles, neutrons, and fission fragments)
rendering it susceptible to radiolytic degradation, which reduces
its performance. Despite the PUREX process being used for over
sixty years, a complete quantitative mechanistic understanding of
the radiolytic degradation processes is not available. Nitrous acid
is the most significant radiolytic degradation product of nitric
acid, especially as its chemical and physical properties alter the
formulation of the PUREX solvent system. Furthermore, nitrous acid
exhibits complex redox relationships with a number of actinides,
with plutonium being of greatest concern to the performance of the
PUREX process. A combination of experimental and computational
(stochastic and deterministic) techniques have been used to
investigate the
radiolysis of the PUREX solvent system’s aqueous
phase, specifically the radiolytic formation of nitrous acid, and
its conjugate base nitrite, as a function of solvent system
formulation, absorbed dose (up to 1.7 kGy), and radiation quality
(cobalt-60 gamma rays and alpha particles from plutonium and
americium alpha decay). The research presented in this thesis
focuses on: (i) the experimental radiation chemistry of solutions
of nitric acid and sodium nitrate over the range of concentrations
1 × 10−3 to 6 mol dm−3, and (ii) the development of a multi-scale
modelling approach for evaluating the
radiolysis of aqueous systems
in terms of reaction mechanisms. The experimental and modelling
studies provide insight into the radiation chemistry of the PUREX
solvent system’s aqueous phase, mechanistically demonstrating how
the radiation chemical yield of nitrous acid and nitrite is
dependent upon the interplay between non-homogeneous radiation
track chemistry and secondary bulk homogeneous chemistry. This
interplay is influenced by low pH, the presence of chemical
scavengers and redox active metal ions, and radiation quality.
These findings will act as a benchmark for the development of
advanced reprocessing schemes, which must seriously consider how
modifications in solvent system formulation and fuel composition
may affect this dynamic interplay, and ultimately the generation of
secondary highly active liquid waste.
Advisors/Committee Members: SHARRAD, CLINT CA, Sharrad, Clint, Pimblott, Simon.
Subjects/Keywords: PUREX; Radiolysis; Nitric acid; Nitrate; Gamma; Plutonium; Americium; Multi-scale modelling
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APA ·
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MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Horne, G. P. (2015). An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:275818
Chicago Manual of Style (16th Edition):
Horne, Gregory Peter. “An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems.” 2015. Doctoral Dissertation, University of Manchester. Accessed March 05, 2021.
http://www.manchester.ac.uk/escholar/uk-ac-man-scw:275818.
MLA Handbook (7th Edition):
Horne, Gregory Peter. “An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems.” 2015. Web. 05 Mar 2021.
Vancouver:
Horne GP. An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems. [Internet] [Doctoral dissertation]. University of Manchester; 2015. [cited 2021 Mar 05].
Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:275818.
Council of Science Editors:
Horne GP. An Experimental and Computational Investigation into the
Radiolysis of PUREX Solvent Systems. [Doctoral Dissertation]. University of Manchester; 2015. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:275818
University of New South Wales
26.
Brown, Bruce John.
A study of transient species produced by pulsed radiolysis.
Degree: Science. Applied Chemistry, 1971, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/69919
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:71618/SOURCE01?view=true
Subjects/Keywords: Pulse radiolysis; Thesis Digitisation Program
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Brown, B. J. (1971). A study of transient species produced by pulsed radiolysis. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/69919 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:71618/SOURCE01?view=true
Chicago Manual of Style (16th Edition):
Brown, Bruce John. “A study of transient species produced by pulsed radiolysis.” 1971. Doctoral Dissertation, University of New South Wales. Accessed March 05, 2021.
http://handle.unsw.edu.au/1959.4/69919 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:71618/SOURCE01?view=true.
MLA Handbook (7th Edition):
Brown, Bruce John. “A study of transient species produced by pulsed radiolysis.” 1971. Web. 05 Mar 2021.
Vancouver:
Brown BJ. A study of transient species produced by pulsed radiolysis. [Internet] [Doctoral dissertation]. University of New South Wales; 1971. [cited 2021 Mar 05].
Available from: http://handle.unsw.edu.au/1959.4/69919 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:71618/SOURCE01?view=true.
Council of Science Editors:
Brown BJ. A study of transient species produced by pulsed radiolysis. [Doctoral Dissertation]. University of New South Wales; 1971. Available from: http://handle.unsw.edu.au/1959.4/69919 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:71618/SOURCE01?view=true
27.
Ghalei, Mohammad.
Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré.
Degree: Docteur es, Milieux denses, matériaux et composants, 2015, Nantes, Ecole des Mines
URL: http://www.theses.fr/2015EMNA0226
► Ce projet s’inscrit dans le cadre d’une étude fondamentale liée à l'oxydation et la réduction de ces éléments sous irradiation γ et He²⁺. ⁺. Tout…
(more)
▼ Ce projet s’inscrit dans le cadre d’une étude fondamentale liée à l'oxydation et la réduction de ces éléments sous irradiation γ et He²⁺. ⁺. Tout d'abord la technique d’électrochimie a été utilisée pour la réduction du Mn (VII) afin d'obtenir les meilleures conditions expérimentales. Car les expériences étant réalisées sous irradiation ainsi les radicaux carbonate qui sont produits par radiolyse jouent un rôle important dans les réactions. La cinétique de formation et la décroissance des radicaux carbonate dans les solutions de carbonate concentrées ont été étudiés par radiolyse pulsée β pico-seconde. Après la réduction du Mn (VII) et l'oxydation du Mn (II) dans une solution de carbonate ([CO₃²⁻] = 5 mol.l⁻¹) sont réalisées sous irradiation γ et He²⁺. Par des données obtenues pour H₂ produit, les spectres UV-Vis et structure finale, les mécanismes de la réaction sont discutés. Re (III) est oxydé facilement dans une solution de carbonate concentré sous irradiation (γ et He²⁺) mais Re (VII) ne peut être réduite à moins que l'addition de formiate afin d'empêcher la formation de radicaux carbonate. De la même façon, Tc (VII) ne peut être réduit dans les solutions concentrées de carbonate sous irradiation (γ et He²⁺) sans ajout de formiate. L'état d'oxydation du produit final de la réduction de Tc(VII) a été déterminée par spectroscopie XANES et est de + IV. En outre, la structure finale du produit final a été déterminée par spectroscopie EXAFS. Le mécanisme de la réaction, le rendement radiolytique de décroissance et la formation du Tc et l’effet de concentration du carbonate sur la produit final de la réduction du Tc(VII) sous irradiation sont discutés.
This project is one part of the fundamental study and deals with theoxidation/reduction reactions and speciation of technetium and its homologous manganese and rhenium in highly concentrated carbonate solutions under γ and He²⁺ irradiation. Firstly the electrochemistry experiment is carried out for the reduction of Mn(VII) in order to obtain the best experimental conditions. As the experiments are performed under irradiation, the carbonate radicals,which are produced by radiolysis, play an important role in the reactions. The formation and decay kinetics of the carbonate radicals in concentrated carbonate solutions were studied by electron picosecond pulse radiolysis. The reduction of Mn(VII) and the oxidation of Mn(II) experiments in carbonate solution ([CO₃²⁻] = 5 mol.l⁻¹) are carried out under γ and He²⁺ irradiation. By the obtained data from the produced H₂, UV-Vis spectra and the final structure determination, the mechanisms of the reaction are discussed. Re(III)is oxidized easily in concentrated carbonate solution under irradiation (γ and He²⁺) but Re(VII) cannot be reduced unless addition of formate in order to prevent carbonate radical formation. Also Tc(VII) cannot be reduced in concentrated carbonate solutions under irradiation (γ and He²⁺) without formate addition. The oxidation state of the final product of reduction of Tc(VII) was determined by XANES…
Advisors/Committee Members: Fattahi-Vanani, Massoud (thesis director).
Subjects/Keywords: Technétium; Manganèse; Rhénium; Carbonate; Radiolyse γ et He2+; Radiolyse pulse β pico-second; Technetium; Manganese; Rhenium; Carbonate; Γ and He2+ radiolysis; Electron pico-second pulse radiolysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ghalei, M. (2015). Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré. (Doctoral Dissertation). Nantes, Ecole des Mines. Retrieved from http://www.theses.fr/2015EMNA0226
Chicago Manual of Style (16th Edition):
Ghalei, Mohammad. “Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré.” 2015. Doctoral Dissertation, Nantes, Ecole des Mines. Accessed March 05, 2021.
http://www.theses.fr/2015EMNA0226.
MLA Handbook (7th Edition):
Ghalei, Mohammad. “Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré.” 2015. Web. 05 Mar 2021.
Vancouver:
Ghalei M. Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré. [Internet] [Doctoral dissertation]. Nantes, Ecole des Mines; 2015. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2015EMNA0226.
Council of Science Editors:
Ghalei M. Study of the speciation of Tc and its homologous Mn and Re in concentrated carbonate solution under γ and He2+ irradiation : Etude de la spéciation du Tc et de ses homologues Mn et Re sous irradiations y et He2+ en milieu carbonate hautement concentré. [Doctoral Dissertation]. Nantes, Ecole des Mines; 2015. Available from: http://www.theses.fr/2015EMNA0226
28.
Ma, Jun.
Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde.
Degree: Docteur es, Chimie, 2015, Université Paris-Saclay (ComUE)
URL: http://www.theses.fr/2015SACLS023
► L'interaction de particules énergétiques avec les résultats de l'eau dans l'excitation et l'ionisation des molécules d'eau. Le processus d'ionisation se rapporte à la génération de…
(more)
▼ L'interaction de particules énergétiques avec les résultats de l'eau dans l'excitation et l'ionisation des molécules d'eau. Le processus d'ionisation se rapporte à la génération de l'excès d'électrons détachés de leurs molécules parentes et laissant derrière le trou positive (notée H₂O•⁺). Cela se produit sur le calendrier d'une transition électronique ~ 10⁻¹⁵s. Les processus chimiques plus anciens de H₂O•⁺ et l'excès d'électrons vers autre question suivie de l'eau en vrac ionisants restent encore peu par rapport connu et constitue un sujet difficile dans la chimie de rayonnement. Dans ma thèse, les techniques de radiolyse d'impulsions picoseconde ont été utilisés pour observer la cinétique de la SO₄•⁻, H₂PO₄• dans de l'acide sulfurique très concentré et solutions d'acide phosphorique sur une large gamme de concentrations (de 1 mol L⁻¹ à l'acide pur). Les résultats expérimentaux montrent clairement que le radical secondaire de sulfurique (SO₄•⁻) et de l'acide phosphorique (H₂PO₄•) peuvent être formés par l'intermédiaire de deux mécanismes : détachement d'électrons direct par l'impulsion d'électrons (7 ps) et le transfert d'électrons ultra-rapide des solutés au radical cation de l'eau H₂O•⁺. La réactivité des espèces oxydantes fortes, H₂O•⁺ vers les solutés dans des solutions aqueuses très concentrées est quantitativement démontré.
The interaction of energetic particles with water results in the excitation and ionization of water molecules. The ionization process refers to the generation of the excess electrons detached from their parent molecules and leaving behind the positive hole (denoted as H₂O•⁺). This occurs on the timescale of an electronic transition ~10⁻¹⁵ s. The earliest chemical processes of H₂O•⁺ and excess electron towards other matter followed water ionizing in bulk still remain relative little known and constitute a challenging subject in radiation chemistry. In my thesis, picosecond pulse radiolysis techniques were used to observe the kinetics of the SO₄•⁻, H₂PO₄• in highly concentrated sulfuric acid and phosphoric acid solutions over a large range of concentrations (from 1 mol L⁻¹ to neat acid). The experimental results showed clearly that the secondary radical of sulfuric (SO₄•⁻) and phosphoric acid (H₂PO₄•) can be formed via two mechanisms: direct electron detachment by the electron pulse (7 ps) and ultrafast electron transfer from the solutes to the radical cation of water H₂O•⁺. The reactivity of the strongest oxidizing species, H₂O•⁺ towards the solutes in highly concentrated aqueous solutions is quantitatively demonstrated.
Advisors/Committee Members: Mostafavi, Mehran (thesis director).
Subjects/Keywords: Transferts d’électron; Radiolyse pulsée picoseconde; Radicaux de l'eau; Electron transfer; Picosecond pulse radiolysis; Water radicals
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APA (6th Edition):
Ma, J. (2015). Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde. (Doctoral Dissertation). Université Paris-Saclay (ComUE). Retrieved from http://www.theses.fr/2015SACLS023
Chicago Manual of Style (16th Edition):
Ma, Jun. “Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde.” 2015. Doctoral Dissertation, Université Paris-Saclay (ComUE). Accessed March 05, 2021.
http://www.theses.fr/2015SACLS023.
MLA Handbook (7th Edition):
Ma, Jun. “Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde.” 2015. Web. 05 Mar 2021.
Vancouver:
Ma J. Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde. [Internet] [Doctoral dissertation]. Université Paris-Saclay (ComUE); 2015. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2015SACLS023.
Council of Science Editors:
Ma J. Ultrafast Electron Transfer in Solutions Studied by Picosecond Pulse Radiolysis : Étude des Transferts d’électrons Ultrarapides en Solutions par Radiolyse Pulsée Picoseconde. [Doctoral Dissertation]. Université Paris-Saclay (ComUE); 2015. Available from: http://www.theses.fr/2015SACLS023
29.
Guipponi, Claire.
Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion.
Degree: Docteur es, Sciences analytiques, 2009, Université Claude Bernard – Lyon I
URL: http://www.theses.fr/2009LYO10298
► Les Colis Standards de Déchets Compactés (CSD-C) sont des déchets issus du retraitement des assemblages de combustibles nucléaires. Ils sont en partie constitués des gaines…
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▼ Les Colis Standards de Déchets Compactés (CSD-C) sont des déchets issus du retraitement des assemblages de combustibles nucléaires. Ils sont en partie constitués des gaines oxydées de Zircaloy-4. Ces pièces métalliques sont cisaillées avant d'être placées dans un étui en acier et compactées sous forme de galettes. Ces galettes contiennent des traces de produits d'activation, de produits de fission et d'actinides présents à la surface du Zircaloy-4 oxydé. Dans l'hypothèse d'un éventuel stockage en couche géologique profond, le relâchement des radioéléments contenus dans les CSD-C s'effectuerait après l'altération des pièces métalliques par corrosion au contact de l'eau de re-saturation du site. En effet, cette eau, sous forme vapeur lors de l'entreposage (due à l'humidité résiduelle), puis liquide pendant le stockage sera irradiée. L'irradiation provoque le phénomène de radiolyse de l'eau susceptible d'accélérer les processus de corrosion du Zircaloy-4 oxydé. Cette thèse a pour objectifs de comprendre les mécanismes d'altération du Zircaloy-4 oxydé au contact de l'air humide et de l'eau liquide soumis à des rayonnements ionisants. Nous avons choisi de porter notre attention sur l'impact de la radiolyse induite par irradiations protons et par irradiations gamma. Pour cela, différentes atmosphères gazeuses et différents milieux aqueux ont été utilisés. Pour l'atmosphère gazeuse, nous avons fait varier la pression partielle de vapeur d'eau présente dans un mélange représentatif de l'air. Pour l'eau, l'effet de trois compositions de solutions aqueuses sur le comportement du Zircaloy-4 oxydé a été étudié (eau déminéralisée, eau basique et eau simulant l'eau de re-saturation). Nous avons également fait varier l'énergie déposée dans la solution. Deux comportements distincts ont été mis en évidence dans les conditions expérimentales étudiées. La radiolyse de l'air humide donne lieu à des réactions chimiques en surface du Zircaloy-4 oxydé conduisant à la formation du composé Sn3(OH)4(NO3)2 et du complexe [Zr4 (OH)8 (H2 O) 16]8+ . La radiolyse de l'eau augmente la vitesse de dissolution du Zircaloy-4. Ce phénomène semble s'effectuer par formation de l'ion HZrO−3 à la surface de l'oxyde puis par sa mise en solution. Les vitesses de dissolution dépendent des conditions d'irradiations et de la composition initiale de la solution aqueuse. Elles sont de l'ordre de quelques nanomètres par an à quelques micromètres par an.
Pas de résumé donné.
Advisors/Committee Members: Pijolat, Michèle (thesis director), Millard-Pinard, Nathalie (thesis director).
Subjects/Keywords: Déchets nucléaires; Zircaloy; Irradiation; Radiolyse; Corrosion; Xps; Nuclear wastes; Zircaloy; Irradiation; Radiolysis; Corrosion; Wps
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APA ·
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APA (6th Edition):
Guipponi, C. (2009). Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion. (Doctoral Dissertation). Université Claude Bernard – Lyon I. Retrieved from http://www.theses.fr/2009LYO10298
Chicago Manual of Style (16th Edition):
Guipponi, Claire. “Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion.” 2009. Doctoral Dissertation, Université Claude Bernard – Lyon I. Accessed March 05, 2021.
http://www.theses.fr/2009LYO10298.
MLA Handbook (7th Edition):
Guipponi, Claire. “Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion.” 2009. Web. 05 Mar 2021.
Vancouver:
Guipponi C. Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion. [Internet] [Doctoral dissertation]. Université Claude Bernard – Lyon I; 2009. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2009LYO10298.
Council of Science Editors:
Guipponi C. Effets de la radiolyse de l'air humide et de l'eau sur la corrosion de la couche d'oxyde du Zircaloy-4 oxydé : Wet air and water radiolysis effects on oxide layer of oxidised Zircaloy-4 corrosion. [Doctoral Dissertation]. Université Claude Bernard – Lyon I; 2009. Available from: http://www.theses.fr/2009LYO10298
Université Montpellier II
30.
Gaillard, Jérémy.
Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides.
Degree: Docteur es, Chimie et physicochimie des matériaux, 2013, Université Montpellier II
URL: http://www.theses.fr/2013MON20225
► L'interaction de l'eau avec les surfaces d'oxyde d'actinides demeure relativement peu étudiée. L'adsorption d'eau à la surface de PuO2 et (U,Pu)O2 conduit à la génération…
(more)
▼ L'interaction de l'eau avec les surfaces d'oxyde d'actinides demeure relativement peu étudiée. L'adsorption d'eau à la surface de PuO2 et (U,Pu)O2 conduit à la génération de H2 par radiolyse mais également à l'évolution de l'état de surface. L'étude de l'interaction de l'eau avec les surfaces d'oxydes mixtes (U,Pu)O2 requiert de mettre en œuvre des techniques d'analyses peu intrusives. L'étude de l'hydratation de la surface de CeO2 permet d'étudier la pertinence de différentes techniques d'analyses. Les résultats montrent que l'adsorption d'eau à la surface de CeO2 conduit à une évolution de l'état de surface et la formation d'une couche superficielle de type hydroxyde. La réactivité de l'eau à la surface de CeO2 dépend de la température de calcination du précurseur de l'oxyde. Le traitement thermique des surfaces hydratées permet de régénérer l'état de surface. Cette étude sur CeO2 souligne l'intérêt des techniques d'analyse mises en œuvre quant à l'étude de l'hydratation des surfaces. La génération de dihydrogène par radiolyse de l'eau adsorbée est étudiée par une méthode expérimentale fondée sur le renouvellement d'eau à la surface du matériau. L'accumulation de H2 est linéaire durant les premières heures puis tend vers un état stationnaire. Un mécanisme de consommation de H2 est proposé pour expliquer cet équilibre et également l'évolution des surfaces d'oxyde mixtes (U,Pu)O2 témoignée par l'évolution des cinétiques d'accumulation de H2. La cinétique d'accumulation dépend du débit de dose, de la surface spécifique de l'oxyde, de l'humidité relative de l'atmosphère en équilibre ainsi que du taux de plutonium et de l'état de surface.
The interaction of water with actinides oxide surfaces remains poorly understood. The adsorption of water on PuO2 surface and (U,Pu)O2 surface leads to hydrogen generation through radiolysis but also surface evolution.The study of water interaction with mixed oxide (U,Pu)O2 and PuO2 surfaces requires the implementation of non intrusive techniques. The study of the hydration of CeO2 surface is used to study the effectiveness of different techniques. The results show that the water adsorption leads to the surface evolution through the formation of a hydroxide superficial layer. The reactivity of water on the surface depends on the calcination temperature of the oxide precursor. The thermal treatment of hydrated surfaces can regenerate the surface. The study on CeO2 hydration emphasizes the relevancies of these techniques in studying the hydration of surfaces.The hydrogen generation through water radiolysis is studied with an experimental methodology based on constant relative humidity in the radiolysis cell. The hydrogen accumulation is linear for the first hours and then tends to a steady state content. A mechanism of hydrogen consumption is proposed to explain the existence of the steady state of hydrogen content. This mechanism enables to explain also the evolution of the oxide surface during hydrogen generation experiments as shown by the evolution of hydrogen accumulation…
Advisors/Committee Members: Moisy, Philippe (thesis director).
Subjects/Keywords: Oxyde mixte; Adsorption; Radiolyse; Eau; Sûreté; Mixed oxide; Adsorption; Radiolysis; Water; Safety
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APA ·
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MLA ·
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CSE |
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APA (6th Edition):
Gaillard, J. (2013). Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides. (Doctoral Dissertation). Université Montpellier II. Retrieved from http://www.theses.fr/2013MON20225
Chicago Manual of Style (16th Edition):
Gaillard, Jérémy. “Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides.” 2013. Doctoral Dissertation, Université Montpellier II. Accessed March 05, 2021.
http://www.theses.fr/2013MON20225.
MLA Handbook (7th Edition):
Gaillard, Jérémy. “Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides.” 2013. Web. 05 Mar 2021.
Vancouver:
Gaillard J. Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides. [Internet] [Doctoral dissertation]. Université Montpellier II; 2013. [cited 2021 Mar 05].
Available from: http://www.theses.fr/2013MON20225.
Council of Science Editors:
Gaillard J. Réactivité de l’eau à la surface des oxydes mixtes (U,Pu)O2 : Reactivity of water on the surface of (U,Pu)O2 mixed oxides. [Doctoral Dissertation]. Université Montpellier II; 2013. Available from: http://www.theses.fr/2013MON20225
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