subject:(titania)

Queensland University of Technology

1. Locke, Ashley. Morphological investigations of supported titania photocatalysts.

Degree: 2010, Queensland University of Technology

► Due in no small part to an increasing need to augment existing water purification strategies, the synthesis of titania photocatalysts has been under considerable examination.… (more)

Subjects/Keywords: titania photocatalysts

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APA (6^th Edition):

Locke, A. (2010). Morphological investigations of supported titania photocatalysts. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/38904/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Locke, Ashley. “Morphological investigations of supported titania photocatalysts.” 2010. Thesis, Queensland University of Technology. Accessed July 20, 2019. https://eprints.qut.edu.au/38904/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Locke, Ashley. “Morphological investigations of supported titania photocatalysts.” 2010. Web. 20 Jul 2019.

Vancouver:

Locke A. Morphological investigations of supported titania photocatalysts. [Internet] [Thesis]. Queensland University of Technology; 2010. [cited 2019 Jul 20]. Available from: https://eprints.qut.edu.au/38904/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Locke A. Morphological investigations of supported titania photocatalysts. [Thesis]. Queensland University of Technology; 2010. Available from: https://eprints.qut.edu.au/38904/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky

2. Kandala, Satish Kumar. NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES.

Degree: 2008, University of Kentucky

URL: http://uknowledge.uky.edu/gradschool_theses/574

► The main objective of this work was to study the applicability of Nano porous/Nanocrystalline TiO2 films for serving the growing demand for fast accurate and… (more)

Subjects/Keywords: TiO2; Titania sensors; Titania nanotubes; Nanocrystalline Titania films; Titania on glass; Electrical and Computer Engineering

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APA (6^th Edition):

Kandala, S. K. (2008). NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/gradschool_theses/574

Chicago Manual of Style (16^th Edition):

Kandala, Satish Kumar. “NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES.” 2008. Masters Thesis, University of Kentucky. Accessed July 20, 2019. http://uknowledge.uky.edu/gradschool_theses/574.

MLA Handbook (7^th Edition):

Kandala, Satish Kumar. “NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES.” 2008. Web. 20 Jul 2019.

Vancouver:

Kandala SK. NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES. [Internet] [Masters thesis]. University of Kentucky; 2008. [cited 2019 Jul 20]. Available from: http://uknowledge.uky.edu/gradschool_theses/574.

Council of Science Editors:

Kandala SK. NANOSTRUCTURED THIN FILMS AND TUBES OF TITANIA FOR ROOM TEMPERATURE SENSING OF GASES. [Masters Thesis]. University of Kentucky; 2008. Available from: http://uknowledge.uky.edu/gradschool_theses/574

Penn State University

3. Yang , Huilin. Antibacterial Titania Nanocomposites.

Degree: MS, Chemistry, 2010, Penn State University

URL: https://etda.libraries.psu.edu/catalog/10578

► Titania nanoparticles with antibacterial shells were synthesized by two methods: silane method and atom transfer radical polymerization (ATRP) method. Fourier-transform infrared (FT-IR), X-ray photoelectron spectroscopy… (more)

Subjects/Keywords: DMAEMA; antibacterial; nanocomposites; titania

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APA (6^th Edition):

Yang , H. (2010). Antibacterial Titania Nanocomposites. (Masters Thesis). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/10578

Chicago Manual of Style (16^th Edition):

Yang , Huilin. “Antibacterial Titania Nanocomposites.” 2010. Masters Thesis, Penn State University. Accessed July 20, 2019. https://etda.libraries.psu.edu/catalog/10578.

MLA Handbook (7^th Edition):

Yang , Huilin. “Antibacterial Titania Nanocomposites.” 2010. Web. 20 Jul 2019.

Vancouver:

Yang H. Antibacterial Titania Nanocomposites. [Internet] [Masters thesis]. Penn State University; 2010. [cited 2019 Jul 20]. Available from: https://etda.libraries.psu.edu/catalog/10578.

Council of Science Editors:

Yang H. Antibacterial Titania Nanocomposites. [Masters Thesis]. Penn State University; 2010. Available from: https://etda.libraries.psu.edu/catalog/10578

University of Oklahoma

4. Omotoso, Taiwo. CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS.

Degree: PhD, 2015, University of Oklahoma

URL: http://hdl.handle.net/11244/23318

► Growing environmental concerns has necessitated the development of cleaner and renewable sources of energy such as biomass. Bio-oil derived from lignocellulosic biomass is a promising… (more)

▼ Growing environmental concerns has necessitated the development of cleaner and renewable sources of energy such as biomass. Bio-oil derived from lignocellulosic biomass is a promising source for producing renewable chemicals and fuels, however due to the instability of this complex mixture, with its high oxygen content contributing mainly to this, catalytic upgrading is required to improve on undesirable properties. Therefore not only is it necessary to decrease the oxygen content of bio-oil, a good upgrading strategy should preserve valuable carbon in the liquid. Metals supported on reducible oxides hold considerable promise for upgrading pyrolysis vapors, as they are capable of converting corrosive light compounds such as acetic acid to the chemical building block acetone as well as catalyzing the deoxygenation and transalkylation of larger phenolic compounds to produce alkyl-aromatics. The combination of reducible oxides such as TiO2 coupled with metals such as Ru can result in a complex catalyst. Potential active sites include the sites on the metal surface, the highly reducible sites at the Ru/TiO2 interface, traditional acid sites on the TiO2 surface, and defects on the TiO2 support. While the roles of the various types of active sites for Ru/TiO2 catalysts have been studied in detail for reactions such as Fischer Tropsch synthesis, little is known regarding the role of these active sites for the conversion of lignin-derived phenolic compounds. In this dissertation, the author will use a combination of model compound studies coupled with catalyst modifications to better understand the reactivity of the various phenolic functional groups and also furfural, an important compound derived from the sugar fraction of biomass feed stocks, over the active sites present on Ru/TiO2 . In the first section of this dissertation, the role of TiO2 crystal morphology phase – anatase and rutile- on resistance to Ru agglomeration during different catalyst pre-treatment conditions and the impact on the conversion of guaiacol, a phenolic compound with both methoxy and hydroxyl functions is investigated. The superior ability of the rutile TiO2 phase in stabilizing ruthenium particles compared to anatase was investigated. This is essential to designing Ru catalysts that have enhanced stability during high temperature oxidation treatments. These chapters will also give insights into the nature of active sites on the Ru/TiO2 catalyst responsible for guaiacol deoxygenation. Differentiation between Ru/TiO2 interfacial sites and oxygen vacancies on the TiO2 support for the conversion of guaiacol was achieved. In other chapters, the conversion of important phenolic compounds such as anisole, catechol and m-cresol was addressed. By utilizing a series of Ru catalysts with varying support types (SiO2, C, TiO2); TiO2 support phase (anatase, rutile and a mixture of both phases) and Ru particle sizes, the role of the various sites on the Ru/TiO2 catalyst for the conversion of these compounds was elucidated. These chapters demonstrate that… Advisors/Committee Members: Crossley, Steven (advisor), White, Robert (committee member), Resasco, Daniel (committee member), Lobban, Lance (committee member), Wang, Bin (committee member).

Subjects/Keywords: Catalysis; Biofuels; Ruthenium; Titania

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APA (6^th Edition):

Omotoso, T. (2015). CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS. (Doctoral Dissertation). University of Oklahoma. Retrieved from http://hdl.handle.net/11244/23318

Chicago Manual of Style (16^th Edition):

Omotoso, Taiwo. “CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS.” 2015. Doctoral Dissertation, University of Oklahoma. Accessed July 20, 2019. http://hdl.handle.net/11244/23318.

MLA Handbook (7^th Edition):

Omotoso, Taiwo. “CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS.” 2015. Web. 20 Jul 2019.

Vancouver:

Omotoso T. CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS. [Internet] [Doctoral dissertation]. University of Oklahoma; 2015. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/11244/23318.

Council of Science Editors:

Omotoso T. CONVERSION OF MODEL BIO-OIL COMPOUNDS OVER METAL OXIDES AND SUPPORTED METAL CATALYSTS. [Doctoral Dissertation]. University of Oklahoma; 2015. Available from: http://hdl.handle.net/11244/23318

University of New South Wales

5. Yun, Jae Sung. Mechanisms of TiO2 Nanotube Fabrication by Anodisation.

Degree: Materials Science & Engineering, 2011, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/51481 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10168/SOURCE02?view=true

► Titania nanotubes have been grown on titanium metal substrates in solutions of ethylene glycol and NH4F by anodisation using the variables of time (5-180 min)… (more)

▼ Titania nanotubes have been grown on titanium metal substrates in solutions of ethylene glycol and NH4F by anodisation using the variables of time (5-180 min) and voltage (15-75 V). The nanotubes were characterised in terms of morphology, shape, length, and diameter by scanning electron microscopy and transmission electron microscopy. The nanotubes were analysed principally in terms of current density versus time plots.The main finding of the work is that, instead of the universally accepted existence of a three-stage growth mechanism, there are five discernable growth stages, each of which can be identified in the current density vs time plots. These were confirmed experimentally by detailed examination of the nanotubes at each stage of growth. Finally, each stage was described and defined phenomenologically.The effect of voltage (as a function of time) was:• 15 V: Insufficient to generate nanotubes• 30-60V: The curves for current density vs time could be differentiated into five distinct stages:Stage I: Initial formation of coherent oxide layerStage II: Pore formationStage III: Pore widening and impingementStage IV: Nanotube growth from driving force of satisfaction of Ohm’s lawStage V: Continued nanotube growth from dissolution and oxide growth• 75 V: The curves for current density vs time were different:Stages I-III: As aboveStage IV: Partial dissolution of barrier layer, with nanotube growth rate depending on competition between opposing resistance changes from barrier layer thickness decrease and nanotube length increaseStage V: Establishment of a thinner barrier layer of constant thickness and rapid nanotube growth, which resulted from the enhanced ionic transport associated with the higher current (lower resistance at constant voltageThe two main differences between previously published work and the present works are as follows:• At ≤60 V, the constant current density of Stage IV results from the driving force of an overbiased circuit to satisfy Ohm’s law. This is done through an increase in circuit resistance resulting from the growth of insulating nanotubes. The higher the voltage, the longer it takes to satisfy Ohm’s law and hence the longer the nanotubes. That is, the length of Stage IV is proportional to the amount nanotube growth.• At 75 V, when Ohm’s law is satisfied at the onset of Stage IV, the increase in current density during Stage IV results from the partial dissolution of the barrier layer and so there is a decrease in the circuit resistance. When the dissolution and oxide formation rates equalise, a new equilibrium barrier layer thickness is established, at which point rapid nanotube growth commences. With the thin barrier layer of lower resistance, the high ionic transport from the high current causes rapid nanotube growth. That is, the steepness of Stage V, which reflects the increasing resistance from the increasing nanotube length, is proportional to the amount of nanotube growth. Advisors/Committee Members: Sorrell, Chris, Materials Science & Engineering, Faculty of Science, UNSW.

Subjects/Keywords: anodization; titania; nanotube; anodisation

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APA (6^th Edition):

Yun, J. S. (2011). Mechanisms of TiO2 Nanotube Fabrication by Anodisation. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/51481 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10168/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Yun, Jae Sung. “Mechanisms of TiO2 Nanotube Fabrication by Anodisation.” 2011. Masters Thesis, University of New South Wales. Accessed July 20, 2019. http://handle.unsw.edu.au/1959.4/51481 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10168/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Yun, Jae Sung. “Mechanisms of TiO2 Nanotube Fabrication by Anodisation.” 2011. Web. 20 Jul 2019.

Vancouver:

Yun JS. Mechanisms of TiO2 Nanotube Fabrication by Anodisation. [Internet] [Masters thesis]. University of New South Wales; 2011. [cited 2019 Jul 20]. Available from: http://handle.unsw.edu.au/1959.4/51481 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10168/SOURCE02?view=true.

Council of Science Editors:

Yun JS. Mechanisms of TiO2 Nanotube Fabrication by Anodisation. [Masters Thesis]. University of New South Wales; 2011. Available from: http://handle.unsw.edu.au/1959.4/51481 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:10168/SOURCE02?view=true

University of New South Wales

6. Nakaruk, Auppatham. Synthesis and characterisation of Titania thin films.

Degree: Materials Science & Engineering, 2010, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/45696 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:8978/SOURCE02?view=true

► The thesis presents publications reporting TiO2 thin film fabrication by spray pyrolysis. A conceptual model of spray pyrolysis mechanism was developed and validated as a… (more)

▼ The thesis presents publications reporting TiO2 thin film fabrication by spray pyrolysis. A conceptual model of spray pyrolysis mechanism was developed and validated as a diagnostic tool to explain the deposition process, which shows that CVD can be achieved by this method.Effect of deposition temperature: TiO2 films were coated on glass using ultrasonic spray pyrolysis for 1 h at 300°-400°C. At 300°C, the films were amorphous; higher temperatures gave films of anatase. With increasing film thickness, the optical transmission decreased. The indirect optical band gap decreased with increasing deposition temperature, dropping from 3.47 eV to 3.23 eV. Effect of deposition time: TiO2 films were deposited on glass using ultrasonic spray pyrolysis at 400°C over 30-120 min. The thin films (420-1290 nm thickness) showed increasing thickness and roughness but decreasing transmittance with increasing deposition time. In the absence of published kinetics data for the deposition of such films, the first-order growth rate was found to be 11 nm/min. Effect of annealing temperature: TiO2 films were prepared by ultrasonic spray pyrolysis on fused quartz at 400°C and/or annealed in air at 600°-1000°C. The films deposited 400°C (50 nm grains) and annealed at 600°C (100 nm grains) showed single-phase anatase of high visible-light transparency. Films annealed at 800°C and 1000°C showed mixed-phase anatase + rutile and pure rutile, respectively. Laser Raman microspectroscopy and X-ray diffraction showed the presence of residual stress, probably resulting from contamination, Si diffusion into the films, and/or oxygen deficiency.Effect of thermal gradient: TiO2 films with mixed-phase rutile + anatase and anatase only were deposited on fused quartz by ultrasonic spray pyrolysis at 400°C. The presence and absence of insulation around the entrainment pathway above the substrate/hot plate was studied. The films were assessed in terms of mineralogy, microstructure, and visible-light transmission. With insulation, opaque mixed anatase (~30 vol%; <50 nm) + rutile (~70 vol%; ~1 μm) were observed; without insulation, only transparent anatase (<50 nm) was observed.An alternative method for TiO2 film fabrication, spin coating on fused quartz substrates, was studied. The films were of a single grain’s thickness since annealing at all temperatures (750°-900°C) gave identical ~400 nm grain size and film thickness. The anatase-rutile phase transformation occurred at 750°-800°C, with first-order kinetics; annealing at 900ºC gave single-phase rutile. Si contamination from the substrates was critical since it suppressed both TiO2 grain growth (hence, constant grain size) and the phase transformation (hence, need for relatively high phase transformation temperature); its presence also was responsible for the formation of lattice defects, which decreased the transmittances and the band gap. Advisors/Committee Members: Sorrell, Charles, Materials Science & Engineering, Faculty of Science, UNSW.

Subjects/Keywords: Thin Film; Titania; Spray Pyrolysis

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APA (6^th Edition):

Nakaruk, A. (2010). Synthesis and characterisation of Titania thin films. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/45696 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:8978/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Nakaruk, Auppatham. “Synthesis and characterisation of Titania thin films.” 2010. Doctoral Dissertation, University of New South Wales. Accessed July 20, 2019. http://handle.unsw.edu.au/1959.4/45696 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:8978/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Nakaruk, Auppatham. “Synthesis and characterisation of Titania thin films.” 2010. Web. 20 Jul 2019.

Vancouver:

Nakaruk A. Synthesis and characterisation of Titania thin films. [Internet] [Doctoral dissertation]. University of New South Wales; 2010. [cited 2019 Jul 20]. Available from: http://handle.unsw.edu.au/1959.4/45696 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:8978/SOURCE02?view=true.

Council of Science Editors:

Nakaruk A. Synthesis and characterisation of Titania thin films. [Doctoral Dissertation]. University of New South Wales; 2010. Available from: http://handle.unsw.edu.au/1959.4/45696 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:8978/SOURCE02?view=true

7. Souza, Luciana Valgas de. Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli.

Degree: PhD, Físico-Química, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-26012015-102647/ ;

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Neste trabalho foram preparados materiais híbridos do tipo silicatos organicamente modificados (ormosils) contendo fosfotungstato, [PW12O40]-3 e dopados com nanopartículas de TiO2. O objetivo é obter… (more)

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Neste trabalho foram preparados materiais híbridos do tipo silicatos organicamente modificados (ormosils) contendo fosfotungstato, [PW12O40]-3 e dopados com nanopartículas de TiO2. O objetivo é obter uma ação sinérgica destes dois fotocatalisadores na prevenção de formação de biofilmes e/ou sua fotodegradação. O fotocatalisador principal no sistema é o fosfotungstato, sendo o co-adjuvante o TiO2. Sendo assim, procurou-se manter a concentração deste no menor nível possível. Os materiais foram caracterizados por espectroscopias vibracionais, espectroscopia de fotoelétrons de raios X (XPS), Fluorescência de Raios X, Microscopia de força atômica e Microscopia eletrônica de varredura (MEV). Os filmes não mostraram eficácia na fotodegradação de biomoléculas como fosfolipídios encontrados na membrana celular. Os ensaios de inibição de crescimento de biofilmes de Escherichia coli sobre os ormosils mostraram que a maior inibição de bactérias é do filme contendo maior teor de nanopartículas de titânia portanto, são bons candidatos para filmes e revestimentos bactericidas/bacteriostáticos a serem usados em máscaras respiratórias, revestimentos de superfícies em salas de cirurgia e em filtros de ar em sistemas fechados (sistemas de ar condicionado e ventilação em geral).

This thesis deals with hybrid materials named organically modified silicates (Ormosils) with phosphotungstate, [PW12O40]-3 , and doped with TiO2 nanoparticles. The aim was to achieve a synergic action between both photocatalysts resulting on a more efficient coating for inhibition of the biofilm growing and/or its photodegradation. The photocatalyst in main system is the phosphotungstate, being the co-adjuvant the TiO2. Therefore, we tried to maintain the concentration of this at the lowest level possible The materials were characterized by vibrational spectroscopies, X-Ray Photoelectron Spectroscopy, X- ray Fluorescence Spectroscopy, Atomic Force Microscopy and Scanning Electron Microscopy. The films were unable to photodegradate biomolecules films such as phospholipids as well as they display interesting inhibition capacity against formation of biofilm of E.Coli bacteria. The tests of inhibition of growth of Escherichia coli biofilms on the ormosils showed that a greater inhibition of bacterias exists in the film containing higher content of nanoparticles of titania. Therefore, they are good candidates for bactericidal films and coatings to be used in respirators, surface coatings in surgery rooms and air filters in closed systems (systems of air conditioning and ventilation in general).

Advisors/Committee Members: Rodrigues Filho, Ubirajara Pereira.

Subjects/Keywords: biofilm; biofilme; ormosil; ormosils; polioxometalatos; polioxomethalates; titania; titania

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APA (6^th Edition):

Souza, L. V. d. (2014). Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/75/75134/tde-26012015-102647/ ;

Chicago Manual of Style (16^th Edition):

Souza, Luciana Valgas de. “Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli.” 2014. Doctoral Dissertation, University of São Paulo. Accessed July 20, 2019. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-26012015-102647/ ;.

MLA Handbook (7^th Edition):

Souza, Luciana Valgas de. “Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli.” 2014. Web. 20 Jul 2019.

Vancouver:

Souza LVd. Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli. [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2019 Jul 20]. Available from: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-26012015-102647/ ;.

Council of Science Editors:

Souza LVd. Filmes de ormosils contendo polioxometalatos dopados com nanopartículas de titânia: adsorção de lipídeos e formação de biofilmes de Escherichia coli. [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/75/75134/tde-26012015-102647/ ;

University of Alberta

8. Pourjavad, Navid. Wear behavior of flame sprayed nanostructured titania coatings.

Degree: MS, Department of Mechanical Engineering, 2011, University of Alberta

URL: https://era.library.ualberta.ca/files/z890rt28w

► Various pressures of compressed air were introduced into the flame spraying torch and the protective coatings of nanostructured and conventional titania (TiO2) were deposited on… (more)

Subjects/Keywords: Titania; Coating; Wear; Flame spray; Nano

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APA (6^th Edition):

Pourjavad, N. (2011). Wear behavior of flame sprayed nanostructured titania coatings. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/z890rt28w

Chicago Manual of Style (16^th Edition):

Pourjavad, Navid. “Wear behavior of flame sprayed nanostructured titania coatings.” 2011. Masters Thesis, University of Alberta. Accessed July 20, 2019. https://era.library.ualberta.ca/files/z890rt28w.

MLA Handbook (7^th Edition):

Pourjavad, Navid. “Wear behavior of flame sprayed nanostructured titania coatings.” 2011. Web. 20 Jul 2019.

Vancouver:

Pourjavad N. Wear behavior of flame sprayed nanostructured titania coatings. [Internet] [Masters thesis]. University of Alberta; 2011. [cited 2019 Jul 20]. Available from: https://era.library.ualberta.ca/files/z890rt28w.

Council of Science Editors:

Pourjavad N. Wear behavior of flame sprayed nanostructured titania coatings. [Masters Thesis]. University of Alberta; 2011. Available from: https://era.library.ualberta.ca/files/z890rt28w

University of Pretoria

9. Kotze, Hanlie. Investigation into the effect of cooling conditions on the particle size distribution of titania slag.

Degree: Materials Science and Metallurgical Engineering, 2009, University of Pretoria

URL: http://hdl.handle.net/2263/26336

► Titania slag is a feedstock to the pigment industry, which in turn provides titania pigment to producers of everyday products like paper, cosmetics and toothpaste.… (more)

▼ Titania slag is a feedstock to the pigment industry, which in turn provides titania pigment to producers of everyday products like paper, cosmetics and toothpaste. Titania slag is the primary product of the pyrometallurgical process of ilmenite smelting – the other products being iron and CO gas. Titania slag is typically tapped from the furnace into blocks of approximately 20 tons. After cooling these blocks are crushed and milled to size fractions suitable for the processes of the pigment producers. These processes are broadly grouped into two types of technology: the chloride route (during which titania slag is reacted with chlorine and subsequently re oxidised thereby removing the impurities) and the sulphate route (in this process the titania slag is purified after dissolving the slag in sulphuric acid). Due to the nature of these two processes, several specifications are imposed on the quality of the titania slags. The fluidised-bed technology used in the chloride process limits the size distribution of the slag to between 106 µm and 850 µm. Ilmenite smelting industries consequently crush and mill the titania slag to below 850 µm. The fraction below 106 µm is then sold to the sulphate market. Since the coarser chloride grade product is the more valuable product, slag producers continuously strive to improve the ratio between the coarser and finer fractions. This study reports on parameters which influence the particle size distribution of titania slags and therefore the split between the coarser (more valuable) and finer (less valuable) products. Pilot-scale slag ingots were used to identify chemical and process variables which influence the yield of coarser material. The microstructure of as-cast and milled slag was examined, and indicated a role of silicate phases in the crushing behaviour. Industrial-scale slag ingots were used to test whether the roles of tapping rate and water cooling (as identified from the pilot-scale ingots) also applied under industrial conditions. A numerical method was applied to estimate the thermal conductivity of the solidified slag (from measurements on pilot-scale ingots), and to predict the cooling and solidification behaviour of industrial-scale ingots. The study concludes that the chemical composition and cooling conditions of the slag block play central roles in the final particle size distribution of the slag. Advisors/Committee Members: Prof P C Pistorius (advisor).

Subjects/Keywords: Ilmenite smelting; Solidification; Pseudobrookite; Titania slag; UCTD

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APA (6^th Edition):

Kotze, H. (2009). Investigation into the effect of cooling conditions on the particle size distribution of titania slag. (Doctoral Dissertation). University of Pretoria. Retrieved from http://hdl.handle.net/2263/26336

Chicago Manual of Style (16^th Edition):

Kotze, Hanlie. “Investigation into the effect of cooling conditions on the particle size distribution of titania slag.” 2009. Doctoral Dissertation, University of Pretoria. Accessed July 20, 2019. http://hdl.handle.net/2263/26336.

MLA Handbook (7^th Edition):

Kotze, Hanlie. “Investigation into the effect of cooling conditions on the particle size distribution of titania slag.” 2009. Web. 20 Jul 2019.

Vancouver:

Kotze H. Investigation into the effect of cooling conditions on the particle size distribution of titania slag. [Internet] [Doctoral dissertation]. University of Pretoria; 2009. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/2263/26336.

Council of Science Editors:

Kotze H. Investigation into the effect of cooling conditions on the particle size distribution of titania slag. [Doctoral Dissertation]. University of Pretoria; 2009. Available from: http://hdl.handle.net/2263/26336

University of Pretoria

10. [No author]. Investigation into the effect of cooling conditions on the particle size distribution of titania slag .

Degree: 2009, University of Pretoria

URL: http://upetd.up.ac.za/thesis/available/etd-07162008-075705/

► Titania slag is a feedstock to the pigment industry, which in turn provides titania pigment to producers of everyday products like paper, cosmetics and toothpaste.… (more)

▼ Titania slag is a feedstock to the pigment industry, which in turn provides titania pigment to producers of everyday products like paper, cosmetics and toothpaste. Titania slag is the primary product of the pyrometallurgical process of ilmenite smelting – the other products being iron and CO gas. Titania slag is typically tapped from the furnace into blocks of approximately 20 tons. After cooling these blocks are crushed and milled to size fractions suitable for the processes of the pigment producers. These processes are broadly grouped into two types of technology: the chloride route (during which titania slag is reacted with chlorine and subsequently re oxidised thereby removing the impurities) and the sulphate route (in this process the titania slag is purified after dissolving the slag in sulphuric acid). Due to the nature of these two processes, several specifications are imposed on the quality of the titania slags. The fluidised-bed technology used in the chloride process limits the size distribution of the slag to between 106 µm and 850 µm. Ilmenite smelting industries consequently crush and mill the titania slag to below 850 µm. The fraction below 106 µm is then sold to the sulphate market. Since the coarser chloride grade product is the more valuable product, slag producers continuously strive to improve the ratio between the coarser and finer fractions. This study reports on parameters which influence the particle size distribution of titania slags and therefore the split between the coarser (more valuable) and finer (less valuable) products. Pilot-scale slag ingots were used to identify chemical and process variables which influence the yield of coarser material. The microstructure of as-cast and milled slag was examined, and indicated a role of silicate phases in the crushing behaviour. Industrial-scale slag ingots were used to test whether the roles of tapping rate and water cooling (as identified from the pilot-scale ingots) also applied under industrial conditions. A numerical method was applied to estimate the thermal conductivity of the solidified slag (from measurements on pilot-scale ingots), and to predict the cooling and solidification behaviour of industrial-scale ingots. The study concludes that the chemical composition and cooling conditions of the slag block play central roles in the final particle size distribution of the slag. Advisors/Committee Members: Prof P C Pistorius (advisor).

Subjects/Keywords: Ilmenite smelting; Solidification; Pseudobrookite; Titania slag; UCTD

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APA (6^th Edition):

author], [. (2009). Investigation into the effect of cooling conditions on the particle size distribution of titania slag . (Doctoral Dissertation). University of Pretoria. Retrieved from http://upetd.up.ac.za/thesis/available/etd-07162008-075705/

Chicago Manual of Style (16^th Edition):

author], [No. “Investigation into the effect of cooling conditions on the particle size distribution of titania slag .” 2009. Doctoral Dissertation, University of Pretoria. Accessed July 20, 2019. http://upetd.up.ac.za/thesis/available/etd-07162008-075705/.

MLA Handbook (7^th Edition):

author], [No. “Investigation into the effect of cooling conditions on the particle size distribution of titania slag .” 2009. Web. 20 Jul 2019.

Vancouver:

author] [. Investigation into the effect of cooling conditions on the particle size distribution of titania slag . [Internet] [Doctoral dissertation]. University of Pretoria; 2009. [cited 2019 Jul 20]. Available from: http://upetd.up.ac.za/thesis/available/etd-07162008-075705/.

Council of Science Editors:

author] [. Investigation into the effect of cooling conditions on the particle size distribution of titania slag . [Doctoral Dissertation]. University of Pretoria; 2009. Available from: http://upetd.up.ac.za/thesis/available/etd-07162008-075705/

Michigan Technological University

11. Baker, Erin A. Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces.

Degree: PhD, Department of Mechanical Engineering-Engineering Mechanics, 2016, Michigan Technological University

URL: http://digitalcommons.mtu.edu/etdr/255

► Introduction: As joint arthroplasty surgical procedures increase annually, the development of new strategies, including novel materials and surface modifications, to attain solid bone-implant fixation… (more)

▼ Introduction: As joint arthroplasty surgical procedures increase annually, the development of new strategies, including novel materials and surface modifications, to attain solid bone-implant fixation are needed to increase implant terms of service. In this study, we evaluate two morphologies of titania nanotubes in both in vitro and in vivo experiments to quantify osseointegrative potential and material-level biocompatibility. Materials and Methods: Samples were prepared via an electrochemical etching process. Two different titania nanotube (TiNT) morphologies were produced, Aligned and Trabecular. For the in vitro experiment, Sprague Dawley (SD) rat marrow-derived bone marrow cells (BMC) were seeded on samples. Alkaline phosphatase (ALP) activity, osteocalcin (OC) expression, expression of relevant genes as well as cell attachment and morphology were assessed. In the first in vivo experiment, Kirschner wires were implanted unilaterally into SD rat femora with a TiNT-etched or unmodified (Control) implant. General health assessments and weekly body weights were recorded. At a 12-week endpoint, hematologic, systemic metal ion, and histologic analyses were performed. For the second in vivo experiment, Kirschner wires were implanted bilaterally into SD rat femora, with a TiNT-etched implant in one femora and unmodified (Control) implant as an internal control. At 4- and 12-week endpoints, femora were assessed via biomechanics, undecalcified histology, micro-computed tomography (μCT), and backscattered electron imaging (BEI) to characterize de novo bone formation. Results: In vitro experiments demonstrated BMC attachment and differentiation into osteoblasts as well as greater ALP activity, OC expression, total cell counts, and gene expression (of Col1a1, IGF-1, and osteonectin) on TiNT surfaces versus Controls. Cells on TiNT-etched substrates were smaller in diameter and more eccentric than Controls. In the first in vivo experiment, there were significant differences in body weight between groups at Weeks 9 and 11. There were no significant differences in red or white blood cell function between TiNT groups and Control. Aluminum levels in the lungs were significantly greater in the Trabecular TiNT group compared to Control. Histologic analysis showed significantly fewer granulocytes and neutrophils in the distal region of Trabecular TiNT-implanted femora as well as significantly fewer foreign body giant/multinucleated cells and neutrophils in the midshaft region of Aligned TiNT-implanted femora versus Controls. In the second in vivo experiment, at 12 weeks, µCT analysis showed TiNT implants generated greater bone formation than Controls. Histologic analysis demonstrated 1.5 times greater bone-implant contact in TiNT groups than Controls at 12 weeks. TiNT groups exhibited 1.3 to 3.7 times greater strength of fixation than Controls during pull-out testing. … Advisors/Committee Members: Craig Friedrich.

Subjects/Keywords: Titania nanotubes; Osseointegration; Orthopaedic; Bone Formation; Biomaterials

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APA (6^th Edition):

Baker, E. A. (2016). Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces. (Doctoral Dissertation). Michigan Technological University. Retrieved from http://digitalcommons.mtu.edu/etdr/255

Chicago Manual of Style (16^th Edition):

Baker, Erin A. “Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces.” 2016. Doctoral Dissertation, Michigan Technological University. Accessed July 20, 2019. http://digitalcommons.mtu.edu/etdr/255.

MLA Handbook (7^th Edition):

Baker, Erin A. “Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces.” 2016. Web. 20 Jul 2019.

Vancouver:

Baker EA. Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces. [Internet] [Doctoral dissertation]. Michigan Technological University; 2016. [cited 2019 Jul 20]. Available from: http://digitalcommons.mtu.edu/etdr/255.

Council of Science Editors:

Baker EA. Enhancing Osseointegration of Orthopaedic Implants with Titania Nanotube Surfaces. [Doctoral Dissertation]. Michigan Technological University; 2016. Available from: http://digitalcommons.mtu.edu/etdr/255

University of California – Berkeley

12. Nguyen, Que Anh. Electrochemical Synthesis and Structural Characterization of Titania Nanotubes.

Degree: Materials Science & Engineering, 2010, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/6bx1p016

► Titania nanotubes have emerged as an exciting new material with a wide array of applications such as sensors, dye sensitized solar cells, and batteries due… (more)

▼ Titania nanotubes have emerged as an exciting new material with a wide array of applications such as sensors, dye sensitized solar cells, and batteries due to their semi-conducting nature, high surface area, and distinct morphology. The nanotubes, synthesized electrochemically in a fluoride-containing electrolyte, are vertically aligned, close-packed, organized structures, with similar diameter and length. The formation mechanism responsible for the organized nanopore/nanotube arrays were examined by studying the effects of processing parameters (anodization voltage, synthesis time, electrolyte composition, substrate surface conditions, etc..) on the growth and structure of electrochemically synthesized titania. Characterization of the nanotube's crystal structure, morphology, and oxide composition were performed via cross-sectional and high-resolution transmission electron microscopy (TEM), micro x-ray diffraction (XRD), energy dispersive spectroscopy (EDS), and electron energy loss spectroscopy (EELS). Experimental results from the synthesis and characterization efforts lead to a novel planar-interface-breakdown model to describe the initiation of organized arrays of nanopores and nanotubes formed via anodization of titanium. It is proposed that the initiation step is triggered by compositional changes in the oxide and electrolyte, near the interface region, that break down the planar surface. In the electrolyte, the compositional changes are enhanced by ionic species, such as fluoride that form complexes with metal cations. In the oxide, the compositional gradient results from depletion of metal cations near the oxide/electrolyte interface. The proposed mechanism indicates that, in addition to the compositional gradient, the initiation of nanopores is controlled by the potential gradient in the oxide as well as the oxides dissolution rate. The initiation step is crucial not only for the growth processes that proceed during anodization, but also for the organization of the pores that result from synthesis. This mechanism, although formulated for the case of anodization of Ti, may be extended to other porous anodic oxide systems.

Subjects/Keywords: Materials Science; electrochemical synthesis; nanostructures; titania

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APA (6^th Edition):

Nguyen, Q. A. (2010). Electrochemical Synthesis and Structural Characterization of Titania Nanotubes. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/6bx1p016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nguyen, Que Anh. “Electrochemical Synthesis and Structural Characterization of Titania Nanotubes.” 2010. Thesis, University of California – Berkeley. Accessed July 20, 2019. http://www.escholarship.org/uc/item/6bx1p016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nguyen, Que Anh. “Electrochemical Synthesis and Structural Characterization of Titania Nanotubes.” 2010. Web. 20 Jul 2019.

Vancouver:

Nguyen QA. Electrochemical Synthesis and Structural Characterization of Titania Nanotubes. [Internet] [Thesis]. University of California – Berkeley; 2010. [cited 2019 Jul 20]. Available from: http://www.escholarship.org/uc/item/6bx1p016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nguyen QA. Electrochemical Synthesis and Structural Characterization of Titania Nanotubes. [Thesis]. University of California – Berkeley; 2010. Available from: http://www.escholarship.org/uc/item/6bx1p016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McMaster University

13. Whinton, Marlena E. Polymerized Silicone Microemulsions.

Degree: PhD, 2016, McMaster University

URL: http://hdl.handle.net/11375/19111

► Microemulsions are nanostructured dispersions that have unique properties, which make them attractive for applications such as biomaterials, drug delivery, and nanoparticle synthesis. The behaviour of… (more)

▼ Microemulsions are nanostructured dispersions that have unique properties, which make them attractive for applications such as biomaterials, drug delivery, and nanoparticle synthesis. The behaviour of hydrocarbon microemulsions and their applications have been extensively studied, however, there have been very few studies in the preparation or the polymerization of silicone microemulsions. Silicone microemulsions offer a unique template by which to create novel nanoporous silicone elastomers and/or hydrogels. The prevalent use of silicones in biomaterials, coatings, and personal care (to name a few) make the development of silicone-based microemulsions of particular interest. The aim of thesis research was to polymerize silicone microemulsions and to understand the factors that contribute to retaining initial template morphology in the polymeric product. Chapter Two of this thesis focuses on the preparation of silicone microemulsions containing a non-polymerizable and polymerizable trisiloxane surfactant, respectively. Formulations were prepared and characterized by electrical conductivity to determine the microemulsion structure type. Formulations located in the bicontinuous region of the phase diagram were polymerized, producing transparent silicone elastomers. The focus of Chapter Three was to determine the tolerance of silicone microemulsions to selected chemistry that is relevant to silicone polymers. Previous work done in the field of polymerizing silicone microemulsions has been based on radical polymerization processes. There are no reports that examine the polymerization of a silicone microemulsion by room temperature vulcanization (RTV), a common process for creating silicone elastomers. We aimed to better understand the effects of RTV cure on morphology retention from the liquid to polymeric product to determine if this type of chemistry could be used in the formation of nanoporous silicone elastomers either on its own or in conjunction with a radical polymerization process. In order to understand the effects of an RTV process on polymer structure, we examined the effect of the variable components (necessary for the RTV cure) on the silicone microemulsion template. Small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) were used as tools to characterize materials prior to and after cure. Silicone microemulsions that were cured using the RTV process produced nanoporous polymeric elastomers, however, the initial bicontinuous microemulsion template was not retained. RTV cured microemulsions retained the bicontinuous structure if the RTV cure was preceded by a photopolymerization reaction to “lock-in” surfactant monomers at the oil/water interface. Chapter Four explores the use of silicone microemulsions as a reaction vehicle in the formation of nano-TiO2 particles. The focus of this chapter was the exploitation of microemulsion droplets and bicontinuous structures that were designed to retard TiO2 particle formation in situ. Titanium isopropoxide (TTIP) was incorporated into… Advisors/Committee Members: Brook, Michael A., Chemistry and Chemical Biology.

Subjects/Keywords: Microemulsions; Polymerization; Silicone; Nanostructured Materials; Nano-titania

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Whinton, M. E. (2016). Polymerized Silicone Microemulsions. (Doctoral Dissertation). McMaster University. Retrieved from http://hdl.handle.net/11375/19111

Chicago Manual of Style (16^th Edition):

Whinton, Marlena E. “Polymerized Silicone Microemulsions.” 2016. Doctoral Dissertation, McMaster University. Accessed July 20, 2019. http://hdl.handle.net/11375/19111.

MLA Handbook (7^th Edition):

Whinton, Marlena E. “Polymerized Silicone Microemulsions.” 2016. Web. 20 Jul 2019.

Vancouver:

Whinton ME. Polymerized Silicone Microemulsions. [Internet] [Doctoral dissertation]. McMaster University; 2016. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/11375/19111.

Council of Science Editors:

Whinton ME. Polymerized Silicone Microemulsions. [Doctoral Dissertation]. McMaster University; 2016. Available from: http://hdl.handle.net/11375/19111

Queensland University of Technology

14. Nagle, Dylan John. Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications.

Degree: 2009, Queensland University of Technology

URL: https://eprints.qut.edu.au/32077/

► There is a need in industry for a commodity polyethylene film with controllable degradation properties that will degrade in an environmentally neutral way, for applications… (more)

▼ There is a need in industry for a commodity polyethylene film with controllable degradation properties that will degrade in an environmentally neutral way, for applications such as shopping bags and packaging film. Additives such as starch have been shown to accelerate the degradation of plastic films, however control of degradation is required so that the film will retain its mechanical properties during storage and use, and then degrade when no longer required. By the addition of a photocatalyst it is hoped that polymer film will breakdown with exposure to sunlight. Furthermore, it is desired that the polymer film will degrade in the dark, after a short initial exposure to sunlight. Research has been undertaken into the photo- and thermo-oxidative degradation processes of 25 ìm thick LLDPE (linear low density polyethylene) film containing titania from different manufacturers. Films were aged in a suntest or in an oven at 50 °C, and the oxidation product formation was followed using IR spectroscopy. Degussa P25, Kronos 1002, and various organic-modified and doped titanias of the types Satchleben Hombitan and Hunstsman Tioxide incorporated into LLDPE films were assessed for photoactivity. Degussa P25 was found to be the most photoactive with UVA and UVC exposure. Surface modification of titania was found to reduce photoactivity. Crystal phase is thought to be among the most important factors when assessing the photoactivity of titania as a photocatalyst for degradation. Pre-irradiation with UVA or UVC for 24 hours of the film containing 3% Degussa P25 titania prior to aging in an oven resulted in embrittlement in ca. 200 days. The multivariate data analysis technique PCA (principal component analysis) was used as an exploratory tool to investigate the IR spectral data. Oxidation products formed in similar relative concentrations across all samples, confirming that titania was catalysing the oxidation of the LLDPE film without changing the oxidation pathway. PCA was also employed to compare rates of degradation in different films. PCA enabled the discovery of water vapour trapped inside cavities formed by oxidation by titania particles. Imaging ATR/FTIR spectroscopy with high lateral resolution was used in a novel experiment to examine the heterogeneous nature of oxidation of a model polymer compound caused by the presence of titania particles. A model polymer containing Degussa P25 titania was solvent cast onto the internal reflection element of the imaging ATR/FTIR and the oxidation under UVC was examined over time. Sensitisation of 5 ìm domains by titania resulted in areas of relatively high oxidation product concentration. The suitability of transmission IR with a synchrotron light source to the study of polymer film oxidation was assessed as the Australian Synchrotron in Melbourne, Australia. Challenges such as interference fringes and poor signal-to-noise ratio need to be addressed before this can become a routine technique.

Subjects/Keywords: titania photocatalyst; polyethylene film; Infrared spectroscopy

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APA (6^th Edition):

Nagle, D. J. (2009). Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/32077/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Nagle, Dylan John. “Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications.” 2009. Thesis, Queensland University of Technology. Accessed July 20, 2019. https://eprints.qut.edu.au/32077/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Nagle, Dylan John. “Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications.” 2009. Web. 20 Jul 2019.

Vancouver:

Nagle DJ. Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications. [Internet] [Thesis]. Queensland University of Technology; 2009. [cited 2019 Jul 20]. Available from: https://eprints.qut.edu.au/32077/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Nagle DJ. Infrared spectroscopic investigation of the effects of titania photocatalyst on the degradation of linear low density polyethylene film for commercial applications. [Thesis]. Queensland University of Technology; 2009. Available from: https://eprints.qut.edu.au/32077/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

KTH

15. Barrientos, Javier. Deaktivering av metanisering katalysatorer.

Degree: Chemical Science and Engineering (CHE), 2012, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156183

►

A titania-supported nickel catalyst was prepared and tested in methanation in order to evaluate its catalytic properties (activity, selectivity and specially, activity loss), and… (more)

Subjects/Keywords: methanation; carbon formation; deactivation; titania; nickel

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APA (6^th Edition):

Barrientos, J. (2012). Deaktivering av metanisering katalysatorer. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156183

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Barrientos, Javier. “Deaktivering av metanisering katalysatorer.” 2012. Thesis, KTH. Accessed July 20, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156183.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Barrientos, Javier. “Deaktivering av metanisering katalysatorer.” 2012. Web. 20 Jul 2019.

Vancouver:

Barrientos J. Deaktivering av metanisering katalysatorer. [Internet] [Thesis]. KTH; 2012. [cited 2019 Jul 20]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156183.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Barrientos J. Deaktivering av metanisering katalysatorer. [Thesis]. KTH; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156183

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

KTH

16. Maza, Esther Donado Sainz de la. Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis.

Degree: Chemical Science and Engineering (CHE), 2012, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158473

► This thesis deals with the study of several catalysts for the Fischer-Tropsch synthesis in the Biomass-To-Liquid process. In this work two groups of catalysts… (more)

Subjects/Keywords: Fischer-Tropsch; cobalt; titania; SBA-15; water

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APA (6^th Edition):

Maza, E. D. S. d. l. (2012). Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158473

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Maza, Esther Donado Sainz de la. “Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis.” 2012. Thesis, KTH. Accessed July 20, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158473.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Maza, Esther Donado Sainz de la. “Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis.” 2012. Web. 20 Jul 2019.

Vancouver:

Maza EDSdl. Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis. [Internet] [Thesis]. KTH; 2012. [cited 2019 Jul 20]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158473.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Maza EDSdl. Cobalt supported on mesoporous silicas for the Fischer-Tropsch synthesis. [Thesis]. KTH; 2012. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-158473

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New South Wales

17. Cao, Trung Tin. Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination.

Degree: Chemical Sciences & Engineering, 2013, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/53277 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11972/SOURCE02?view=true

► This study describes a new method for enhancing photocatalytic activity of TiO2 under visible light with wetness impregnation method. Higher doping of Cobalt compared to… (more)

▼ This study describes a new method for enhancing photocatalytic activity of TiO2 under visible light with wetness impregnation method. Higher doping of Cobalt compared to Platinum in support Titania contributed to reducing commercial problem in catalyst preparation. A number of methods were utilized for characterizing catalysts such as: Brunauer, Emmett and Teller (BET), X-ray Diffraction (XRD), Thermal Gravity calcination (TGC), UV-Vis, UV-Fluorescence. From the result, the Co/TiO2 and Pt/TiO2 properties were improved for them to be more active in visible irradiation and performed high efficiency in photocatalytic activity. However, in wetness impregnation method, the conductivity level of Cobalt is lower than Platinum so Cobalt doped TiO2 was not suitable in hydrogen production area even though the percentage of Pt loading is minor compared to Cobalt.In addition, in 1.25 bubble column reactor was modified to appropriately work in this study. All of gas gauss meters were changed to mass flow control for precious measurement. In this reactor, two experiments which are glycerol degradation and glycerol to hydrogen under visible light were implemented. On the one hand, the Co/TiO2 was utilized for testing glycerol degradation. With the 8% of cobalt loading and pre-calcination at 773K, the catalyst exhibited a high productivity in photodegradation of glycerol. On the other hand, Pt/TiO2 conducted investigation of hydrogen generation. 0.2%wt Pt doped Titania which was calcinated at 773K in basic environment, presented a significant yield in generating hydrogen. In addition, there are some essential component in bubble column reactor were evaluated for optimizing the hydrogen productivity in this reactor. As a result, the pH environment, catalyst loading and total flow rate are the key factors which directly affect the hydrogen generation. The reaction which was implemented at pH 11, 1g.L-1 of catalyst loading and 1200 mil.min-1 of total flow rate is the optimum condition of hydrogen production when utilizing Pt/TiO2 in this reactor. Advisors/Committee Members: Adesoji, Adesina, Chemical Sciences & Engineering, Faculty of Engineering, UNSW, Frank, Lucien, Chemical Sciences & Engineering, Faculty of Engineering, UNSW.

Subjects/Keywords: Hydrogen production; Titania; Waste water Treatment

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APA (6^th Edition):

Cao, T. T. (2013). Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/53277 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11972/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Cao, Trung Tin. “Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination.” 2013. Masters Thesis, University of New South Wales. Accessed July 20, 2019. http://handle.unsw.edu.au/1959.4/53277 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11972/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Cao, Trung Tin. “Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination.” 2013. Web. 20 Jul 2019.

Vancouver:

Cao TT. Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination. [Internet] [Masters thesis]. University of New South Wales; 2013. [cited 2019 Jul 20]. Available from: http://handle.unsw.edu.au/1959.4/53277 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11972/SOURCE02?view=true.

Council of Science Editors:

Cao TT. Evaluation of doped-titania photocatalysts for aqueous glycerol degradation and hydrogen production under visible light illumination. [Masters Thesis]. University of New South Wales; 2013. Available from: http://handle.unsw.edu.au/1959.4/53277 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11972/SOURCE02?view=true

Australian National University

18. Zhang, Meng Bi. Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers .

Degree: 2017, Australian National University

URL: http://hdl.handle.net/1885/144613

► The use of nanomaterials for biomedical applications is an emerging and important field. This is particularly true of advancements in targeted and controlled drug delivery,… (more)

▼ The use of nanomaterials for biomedical applications is an emerging and important field. This is particularly true of advancements in targeted and controlled drug delivery, which offer several important improvements over traditional drug administration. The clinical efficacy of small-molecule therapeutics is currently limited by many factors, including: poor solubility, inefficient cellular uptake, overly rapid renal clearance and an inability to target only desired locations such as diseased tissues. The use of nanocarriers for drug delivery may greatly improve the efficacy over traditional therapeutics by lowering the total dosage, limiting the exposure to affected areas only, and giving greater temporal control over drug elution. These materials often make use of both organic and inorganic components, exploiting the unique and useful properties of each constituent to achieve novel, synergistic functions. This dissertation presents a study of nanocomposites comprising the three most important materials in this field: titania, iron oxides and polypyrrole. Titania is a strong photocatalyst, iron oxides provide useful responses to applied magnetic fields, and polypyrrole is a polymer with unique electrochemical properties. Studies in this dissertation were aimed at combining these three materials to create a novel structure that is responsive towards light, magnetic fields and electrical stimulation to serve as an enabling platform for the loading and release of biologically interesting compounds. These nanomaterials have been paired with amino acids L-lysine and L-glutamic acid, two organic molecules of interest due to their ability to bind to DNA and proteins, and to form prodrugs that exhibit enhanced performance compared to traditionally administered medicines. Two model compounds have been loaded and released on these carriers: Ketoprofen, an important anti-inflammatory that is traditionally hindered by its limited cellular uptake levels; and fluorescein isothiocyanate, a fluorescent dye molecule that is a common tool used in this field for nanocarrier location and easy visualisation of release-related kinetics. First, an investigation into the effect of pH on the binding of amino acids to titania, iron oxide and polypyrrole is presented with a view towards optimising the functionalised material for subsequent loading and release of the model drugs (in this case, amine-reactive molecules). The release mechanism of photo-activated TiO2 is studied in detail with a particular focus on the competition between the cleavage of bonds versus organic degradation on the catalyst’s surface. Both mechanisms are currently reported in literature and studies were aimed at identifying the more dominant pathway in the system developed alongside understanding the crucial role of…

Subjects/Keywords: nanoparticles; titania; magnetic; amino acids; polypyrrole

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, M. B. (2017). Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers . (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/144613

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Meng Bi. “Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers .” 2017. Thesis, Australian National University. Accessed July 20, 2019. http://hdl.handle.net/1885/144613.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Meng Bi. “Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers .” 2017. Web. 20 Jul 2019.

Vancouver:

Zhang MB. Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers . [Internet] [Thesis]. Australian National University; 2017. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/1885/144613.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang MB. Stimuli-responsive nanomaterials for controlled delivery by light, magnetic and electrical triggers . [Thesis]. Australian National University; 2017. Available from: http://hdl.handle.net/1885/144613

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New South Wales

19. Wang, Jieyu. Fabrication of Sn-doped Titania Hollow Spheres.

Degree: Materials Science & Engineering, 2016, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/57367 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43331/SOURCE02?view=true

Subjects/Keywords: Titania Hollow Spheres

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, J. (2016). Fabrication of Sn-doped Titania Hollow Spheres. (Masters Thesis). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/57367 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43331/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Wang, Jieyu. “Fabrication of Sn-doped Titania Hollow Spheres.” 2016. Masters Thesis, University of New South Wales. Accessed July 20, 2019. http://handle.unsw.edu.au/1959.4/57367 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43331/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Wang, Jieyu. “Fabrication of Sn-doped Titania Hollow Spheres.” 2016. Web. 20 Jul 2019.

Vancouver:

Wang J. Fabrication of Sn-doped Titania Hollow Spheres. [Internet] [Masters thesis]. University of New South Wales; 2016. [cited 2019 Jul 20]. Available from: http://handle.unsw.edu.au/1959.4/57367 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43331/SOURCE02?view=true.

Council of Science Editors:

Wang J. Fabrication of Sn-doped Titania Hollow Spheres. [Masters Thesis]. University of New South Wales; 2016. Available from: http://handle.unsw.edu.au/1959.4/57367 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:43331/SOURCE02?view=true

20. Sibu,C P. Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings.

Degree: 2004, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/93

► In the present work Titania bulk powders and coatings were prepared by subjecting titanium isopropoxide solution to a controlled hydrolysis-condensation process. The powders were characterized… (more)

Subjects/Keywords: Sol-gel Titania; Titanium isopoxide; SOL-GEL nanocrystalline Titania; Titania powder

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APA (6^th Edition):

P, S. (2004). Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/93

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

P, Sibu,C. “Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings.” 2004. Thesis, Cochin University of Science and Technology. Accessed July 20, 2019. http://dyuthi.cusat.ac.in/purl/93.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

P, Sibu,C. “Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings.” 2004. Web. 20 Jul 2019.

Vancouver:

P S. Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings. [Internet] [Thesis]. Cochin University of Science and Technology; 2004. [cited 2019 Jul 20]. Available from: http://dyuthi.cusat.ac.in/purl/93.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

P S. Sol-Gel Nanocrystalline Catalytic Titania Powders and Functional Coatings. [Thesis]. Cochin University of Science and Technology; 2004. Available from: http://dyuthi.cusat.ac.in/purl/93

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Indian Institute of Science

21. Murria, Priya. Titania Nanotubes For Biotechnological Applications.

Degree: 2011, Indian Institute of Science

URL: http://hdl.handle.net/2005/2354

► Over the past few decades, inorganic nanostructured materials have elicited a lot of interest due to their high surface-to-volume ratio and many size dependent properties… (more)

▼ Over the past few decades, inorganic nanostructured materials have elicited a lot of interest due to their high surface-to-volume ratio and many size dependent properties which stem from their nanoscale dimensions. Owing to these distinct properties, they have found applications in widespread fields like catalysis, energy storage, electronics, and biotechnology. In the field of biotechnology, nanotubes and mesoporous materials are attractive vehicles for drug delivery because of their hollow and porous structures and facile surface functionalization. Their inner void can take up large amounts of drug as well as act as gates for the controlled release of drug. These hollow structures can also be used for confining biomolecules like proteins and peptides. The study on protein conformation in biocompatible materials is very important in materials sciences for the development of new and efficient biomaterials(sensors, drug delivery systems or planted devices). Titania(TiO2)has been widely explored for applications in photovoltaic cells, batteries, desalination, sensing, and photocatalysis, to name only a few. The work presented in this thesis focuses on titania based nanostructures for drug delivery and protein confinement. First part of the work focusses on synthesis and characterization of Fe-doped TiO2 nanotubes. Fe-doped TiO2 nanotubes were demonstrated as controlled drug delivery agents. In vitro cytotoxic effects of Fe-doped titania nanotubes were assessed by MTT assay by exposing Hela cell line to the nanotubes. Second part of the work focusses on synthesis and characterization of TiO2 nanotubes by two synthesis procedures, namely hydrothermal and sol-gel template synthesis. Myoglobin, a model globin protein was encapsulated in hydrothermally synthesized TiO 2 nanotubes(diameter 5 nm) and sol-gel template synthesized TiO2 nanotubes(diameter 200 nm). Effect of encapsulating myoglobin these nanotubes was studied. The electrochemical activity and structure of myoglobin were studied by cyclic voltammetry and circular dichroism respectively. Direct electron transfer was found to be enhanced upon confinement in 200 nm diameter nanotubes. No such enhancement was observed upon encapsulation in hydrothermally synthesized nanotubes. In addition to this, the thermal stability of myoglobin was found to be enhanced upon confinement inside 200 nm diameter TiO 2 nanotubes. Advisors/Committee Members: Bhattacharyya, Aninda J.

Subjects/Keywords: Titanium Nanotubes; Bionanotechnology; Biomedical Engineering; Myoglobin Encapsulation; Titania Nanotubes - Biomedical Applications; Fe-Doped Titania Nanotubes; Fe-doped TiO2 Nanotubes; Drug Delivery; Titania Nanotube (TNT); Nanostructured Materials; TiO2 Nanoparticles; Nanotechnology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Murria, P. (2011). Titania Nanotubes For Biotechnological Applications. (Thesis). Indian Institute of Science. Retrieved from http://hdl.handle.net/2005/2354

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Murria, Priya. “Titania Nanotubes For Biotechnological Applications.” 2011. Thesis, Indian Institute of Science. Accessed July 20, 2019. http://hdl.handle.net/2005/2354.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Murria, Priya. “Titania Nanotubes For Biotechnological Applications.” 2011. Web. 20 Jul 2019.

Vancouver:

Murria P. Titania Nanotubes For Biotechnological Applications. [Internet] [Thesis]. Indian Institute of Science; 2011. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/2005/2354.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Murria P. Titania Nanotubes For Biotechnological Applications. [Thesis]. Indian Institute of Science; 2011. Available from: http://hdl.handle.net/2005/2354

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Indian Institute of Science

22. Murria, Priya. Titania Nanotubes For Biotechnological Applications.

Degree: 2011, Indian Institute of Science

URL: http://etd.iisc.ernet.in/handle/2005/2354 ; http://etd.ncsi.iisc.ernet.in/abstracts/3027/G24776-Abs.pdf

► Over the past few decades, inorganic nanostructured materials have elicited a lot of interest due to their high surface-to-volume ratio and many size dependent properties… (more)

▼ Over the past few decades, inorganic nanostructured materials have elicited a lot of interest due to their high surface-to-volume ratio and many size dependent properties which stem from their nanoscale dimensions. Owing to these distinct properties, they have found applications in widespread fields like catalysis, energy storage, electronics, and biotechnology. In the field of biotechnology, nanotubes and mesoporous materials are attractive vehicles for drug delivery because of their hollow and porous structures and facile surface functionalization. Their inner void can take up large amounts of drug as well as act as gates for the controlled release of drug. These hollow structures can also be used for confining biomolecules like proteins and peptides. The study on protein conformation in biocompatible materials is very important in materials sciences for the development of new and efficient biomaterials(sensors, drug delivery systems or planted devices). Titania(TiO2)has been widely explored for applications in photovoltaic cells, batteries, desalination, sensing, and photocatalysis, to name only a few. The work presented in this thesis focuses on titania based nanostructures for drug delivery and protein confinement. First part of the work focusses on synthesis and characterization of Fe-doped TiO2 nanotubes. Fe-doped TiO2 nanotubes were demonstrated as controlled drug delivery agents. In vitro cytotoxic effects of Fe-doped titania nanotubes were assessed by MTT assay by exposing Hela cell line to the nanotubes. Second part of the work focusses on synthesis and characterization of TiO2 nanotubes by two synthesis procedures, namely hydrothermal and sol-gel template synthesis. Myoglobin, a model globin protein was encapsulated in hydrothermally synthesized TiO 2 nanotubes(diameter 5 nm) and sol-gel template synthesized TiO2 nanotubes(diameter 200 nm). Effect of encapsulating myoglobin these nanotubes was studied. The electrochemical activity and structure of myoglobin were studied by cyclic voltammetry and circular dichroism respectively. Direct electron transfer was found to be enhanced upon confinement in 200 nm diameter nanotubes. No such enhancement was observed upon encapsulation in hydrothermally synthesized nanotubes. In addition to this, the thermal stability of myoglobin was found to be enhanced upon confinement inside 200 nm diameter TiO 2 nanotubes. Advisors/Committee Members: Bhattacharyya, Aninda J.

Subjects/Keywords: Titanium Nanotubes; Bionanotechnology; Biomedical Engineering; Myoglobin Encapsulation; Titania Nanotubes - Biomedical Applications; Fe-Doped Titania Nanotubes; Fe-doped TiO2 Nanotubes; Drug Delivery; Titania Nanotube (TNT); Nanostructured Materials; TiO2 Nanoparticles; Nanotechnology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Murria, P. (2011). Titania Nanotubes For Biotechnological Applications. (Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ernet.in/handle/2005/2354 ; http://etd.ncsi.iisc.ernet.in/abstracts/3027/G24776-Abs.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Murria, Priya. “Titania Nanotubes For Biotechnological Applications.” 2011. Thesis, Indian Institute of Science. Accessed July 20, 2019. http://etd.iisc.ernet.in/handle/2005/2354 ; http://etd.ncsi.iisc.ernet.in/abstracts/3027/G24776-Abs.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Murria, Priya. “Titania Nanotubes For Biotechnological Applications.” 2011. Web. 20 Jul 2019.

Vancouver:

Murria P. Titania Nanotubes For Biotechnological Applications. [Internet] [Thesis]. Indian Institute of Science; 2011. [cited 2019 Jul 20]. Available from: http://etd.iisc.ernet.in/handle/2005/2354 ; http://etd.ncsi.iisc.ernet.in/abstracts/3027/G24776-Abs.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Murria P. Titania Nanotubes For Biotechnological Applications. [Thesis]. Indian Institute of Science; 2011. Available from: http://etd.iisc.ernet.in/handle/2005/2354 ; http://etd.ncsi.iisc.ernet.in/abstracts/3027/G24776-Abs.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. ANTOLíN POZUETA, Ana María. Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts.

Degree: Docteur es, Chimie et Physicochimie des matériaux, 2016, Montpellier, Ecole nationale supérieure de chimie; Universitat Rovira i Virgili (Tarragone, Espagne)

URL: http://www.theses.fr/2016ENCM0016

► En Europe, l’utilisation en agriculture de grandes quantités d’engrais chimiques est la principale cause de contamination des eaux. Les concentrations en nitrate dans l’eau deviennent… (more)

▼ En Europe, l’utilisation en agriculture de grandes quantités d’engrais chimiques est la principale cause de contamination des eaux. Les concentrations en nitrate dans l’eau deviennent nuisibles pour les personnes lorsqu’elles dépassent certaines limites car elles sont la cause de méthémoglobinémie, de cancers et agissent comme perturbateurs endocriniens. L’hydrogénation catalytique hétérogène des nitrates est la méthode de dénitration la plus connue et la plus efficace due à la grande sélectivité pour les produits non toxiques, azote et eau. La photocatalyse hétérogène a émergé comme une voie très prometteuse de dénitration du fait de la possibilité d’utiliser la lumière solaire ce qui la rend commercialement compétitive et compatible avec la protection de l’environnement. Les procédés catalytiques conduisent fréquemment à l’obtention des sous-produits toxiques nitrite et ion ammonium, ainsi qu’à des oxydes d’azote gazeux NOx. Dans ce travail ont été utilisés des catalyseurs monométalliques supportés (Ag/P25, Pt/P25), leur mélange physique, et des catalyseurs bimétalliques supportés (Ag-Pt/P25 et Pd-Sn/P25). Le support oxyde de titane (TiO2) P25 est choisi pour développer un catalyseur performant pour la dénitration à la fois catalytique et photocatalytique permettant d’atteindre les normes requises par l’UE dans l’eau potable (50 mg/L NO3-, 0.5 mg/L NO2-, 0.3 mg/L NH4+). L’influence des teneurs en métaux (Ag: 0.5 – 4 pds.%; Pt: 2 et 4 pds.%), du précurseur Pt (H2PtCl6 (H)/K2PtCl6 (K)), de l’ordre d’imprégnation de Ag et Pt et de la morphologie des particules bimétalliques Pd-Sn (nanoparticules et nanobâtonnets) ont été étudiés. Les conditions expérimentales (présence/absence de H2 ; λ = 254 ou 365 nm; 4W; 45.4 mW/cm2) ont été également variées et les réactions effectuées dans un réacteur batch en PTFE sous atmosphère inerte et dans des conditions standard (catalyseur : 0.7 mg/L ; 100 mg/L NO3- ; 500 r.p.m). Contrairement à la plupart des études précédentes aucun «piégeur de trous» (expl. acides formique ou oxalique) n’a été utilisé dans nos conditions de réaction, Les analyses ont été effectuées par chromatographie ionique ou photométrie. Les propriétés physico-chimiques des catalyseurs ont été déterminées par DRX, Physisorption de N2, MET, DRUV-Vis, XPS, TPR et chimisorption de H2. Le support TiO2 P25 est inactif dans les deux procèdés non photocatalytique et photocatalyique. Le mélange physique Ag/P25+Pt/P25 conduit à une conversion (~ 56%) et sélectivité en N2 (~ 76%) plus élevées dans les conditions non photocatalytiques que chacun des homologues monométalliques, cependant NO2- and NH4+ sont obtenus. Les catalyseurs bimétalliques Ag-Pt(Pt-Ag)/P25 se montrent polyvalents étant actifs dans les procédés non-photocatalytiques et photocatalytiques. Les meilleurs résultats photocatalytiques ont été obtenus sous irradiation ultraviolette de 365 nm et en présence de H2 dû à la synergie entre les électrons générés par irradiation et l’hydrogène dissocié sut Pt. Le Pt imprégné en premier conduit à une conversion plus… Advisors/Committee Members: Tichit, Didier (thesis director), Medina, Francisco (thesis director).

Subjects/Keywords: Dénitration; Catalyse/Photocatalyse; Titania; Ag-Pt; Pd-Sn; Eau potable; Denitration; Catalysis/Photocatalysis; Titania; Ag-Pt; Pd-Sn; Drinking water; 540

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

ANTOLíN POZUETA, A. M. (2016). Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts. (Doctoral Dissertation). Montpellier, Ecole nationale supérieure de chimie; Universitat Rovira i Virgili (Tarragone, Espagne). Retrieved from http://www.theses.fr/2016ENCM0016

Chicago Manual of Style (16^th Edition):

ANTOLíN POZUETA, Ana María. “Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts.” 2016. Doctoral Dissertation, Montpellier, Ecole nationale supérieure de chimie; Universitat Rovira i Virgili (Tarragone, Espagne). Accessed July 20, 2019. http://www.theses.fr/2016ENCM0016.

MLA Handbook (7^th Edition):

ANTOLíN POZUETA, Ana María. “Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts.” 2016. Web. 20 Jul 2019.

Vancouver:

ANTOLíN POZUETA AM. Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts. [Internet] [Doctoral dissertation]. Montpellier, Ecole nationale supérieure de chimie; Universitat Rovira i Virgili (Tarragone, Espagne); 2016. [cited 2019 Jul 20]. Available from: http://www.theses.fr/2016ENCM0016.

Council of Science Editors:

ANTOLíN POZUETA AM. Élimination du nitrate dans l'eau potable par catalyse hétérogène et photocatalyse au moyen de nanocatalyseurs AgPt et PdSn supportés sur oxyde de titane : Heterogeneous catalytic and photocatalytic nitrate abatement for drinking water using AgPt and PdSn supported on titania nanocatalysts. [Doctoral Dissertation]. Montpellier, Ecole nationale supérieure de chimie; Universitat Rovira i Virgili (Tarragone, Espagne); 2016. Available from: http://www.theses.fr/2016ENCM0016

Pontifical Catholic University of Rio de Janeiro

24. LAIS HELENA MOREIRA DA COSTA. [en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER.

Degree: 2019, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36253

►

[pt] Partículas que apresentam dois lados com propriedades químicas distintas são chamadas de Janus, como uma referência ao deus de duas faces da mitologia Romana.… (more)

▼

[pt] Partículas que apresentam dois lados com propriedades químicas distintas são chamadas de Janus, como uma referência ao deus de duas faces da mitologia Romana. A combinação de propriedades diferentes em um mesmo sistema vem se demonstrando interessante para inúmeras aplicações. Neste trabalho, nanopartículas de ouro anfifílicas foram sintetizadas através do recobrimento seletivo dos hemisférios do núcleo metálico, por dois polímeros, sendo um hidrofóbico e outro hidrofílico. Em seguida, foi realizado o crescimento preferencial de dióxido de titânio apenas na face com recobrimento hidrofílico. Os resultados obtidos pela caracterização estrutural e físico-química confirmaram a formação de nanopartículas de ouro com um hemisfério recoberto por dióxido de titânio de baixa cristalinidade e alta porosidade, provando seu caráter Janus. As nanopartículas Janus obtidas foram testadas como fotocatalisadores para produção de gás hidrogênio a partir da água. Os resultados mostraram sua atividade superior em relação a nanopartículas formadas apenas por titânia. Portanto, este estudo descreve uma nova estratégia para obtenção de nanopartículas Janus, que podem ser utilizadas para diferentes aplicações, e ainda demonstra sua importância nas áreas de catálise e de produção de gás hidrogênio como combustível renovável.

[en] Particles possessing two sides with different chemical properties are named Janus, as a reference to the double-faced god of Roman mythology. The combination of two different properties in the same system has been showing interesting for numerous applications. In this work, amphiphilic gold nanoparticles were synthesized by selectively coating the metallic nucleus hemispheres with two polymers, one hydrophobic and one hydrophilic. Then, a preferential growth of titanium dioxide over the hydrophilic face was performed. The results obtained by structural and physicochemical characterization confirmed the formation of gold nanoparticles with one hemisphere coated by titanium dioxide with low crystallinity and high porosity, proving the Janus character. The obtained Janus nanoparticles were tested as photocatalysts for hydrogen production from water. Results showed the superior activity in comparison to nanoparticles comprised only by titania. Thus, this study describes a new strategy to obtain Janus nanoparticles, which can be used for different applications and also demonstrates their importance in the fields of catalysis and production of hydrogen gas as renewable fuel.

Advisors/Committee Members: ANA MARIA PERCEBOM SETTE DA SILVA.

Subjects/Keywords: [pt] NANOTECNOLOGIA; [en] NANOTECHNOLOGY; [pt] TITANIA; [en] TITANIA; [pt] CATALISE; [en] CATALYSIS; [pt] PRODUCAO DE HIDROGENIO; [en] HYDROGEN PRODUCTION

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APA (6^th Edition):

COSTA, L. H. M. D. (2019). [en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36253

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

COSTA, LAIS HELENA MOREIRA DA. “[en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER.” 2019. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed July 20, 2019. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36253.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

COSTA, LAIS HELENA MOREIRA DA. “[en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER.” 2019. Web. 20 Jul 2019.

Vancouver:

COSTA LHMD. [en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2019. [cited 2019 Jul 20]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36253.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

COSTA LHMD. [en] JANUS NANOPARTICLES FORMED BY GOLD AND TITANIUM DIOXIDE AS PHOTOCATALYST FOR HYDROGEN PRODUCTION FROM WATER. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2019. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=36253

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Australia

25. Hanly, Gary. The wetting of a titania surface : surface charge and thin liquid films.

Degree: 2008, University of South Australia

URL: http://arrow.unisa.edu.au:8081/1959.8/47043

► The hydrophobicity of a titania surface was increased by adsorption of octadecyltrihydrosilane (OTHS). The modified titania surface was characterised using a number of techniques: tapping… (more)

Subjects/Keywords: Surface chemistry; Wetting; Titania surface

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APA (6^th Edition):

Hanly, G. (2008). The wetting of a titania surface : surface charge and thin liquid films. (Thesis). University of South Australia. Retrieved from http://arrow.unisa.edu.au:8081/1959.8/47043

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hanly, Gary. “The wetting of a titania surface : surface charge and thin liquid films.” 2008. Thesis, University of South Australia. Accessed July 20, 2019. http://arrow.unisa.edu.au:8081/1959.8/47043.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hanly, Gary. “The wetting of a titania surface : surface charge and thin liquid films.” 2008. Web. 20 Jul 2019.

Vancouver:

Hanly G. The wetting of a titania surface : surface charge and thin liquid films. [Internet] [Thesis]. University of South Australia; 2008. [cited 2019 Jul 20]. Available from: http://arrow.unisa.edu.au:8081/1959.8/47043.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hanly G. The wetting of a titania surface : surface charge and thin liquid films. [Thesis]. University of South Australia; 2008. Available from: http://arrow.unisa.edu.au:8081/1959.8/47043

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

26. Ahmed Yasir,Vakayil; Mohan Das,P N. Investigations on Some Titania Supported Catalysts.

Degree: 2001, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/38

► Titania is a versatile metal oxide with multiple applications. Titania supported catalysts are reported to be much more active compared to conventional silica or alumina… (more)

Subjects/Keywords: Titania; Crystallinity; Rutilation; Methanation activity

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APA (6^th Edition):

N, A. Y. M. D. (2001). Investigations on Some Titania Supported Catalysts. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/38

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

N, Ahmed Yasir,Vakayil; Mohan Das,P. “Investigations on Some Titania Supported Catalysts.” 2001. Thesis, Cochin University of Science and Technology. Accessed July 20, 2019. http://dyuthi.cusat.ac.in/purl/38.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

N, Ahmed Yasir,Vakayil; Mohan Das,P. “Investigations on Some Titania Supported Catalysts.” 2001. Web. 20 Jul 2019.

Vancouver:

N AYMD. Investigations on Some Titania Supported Catalysts. [Internet] [Thesis]. Cochin University of Science and Technology; 2001. [cited 2019 Jul 20]. Available from: http://dyuthi.cusat.ac.in/purl/38.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

N AYMD. Investigations on Some Titania Supported Catalysts. [Thesis]. Cochin University of Science and Technology; 2001. Available from: http://dyuthi.cusat.ac.in/purl/38

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

27. Kumar, Narendra. Synthesis charcterization and application of titania and zirconia based ceramic precursors; -.

Degree: Chemistry, 2005, INFLIBNET

URL: http://shodhganga.inflibnet.ac.in/handle/10603/44971

None

Bibliography given

Advisors/Committee Members: Srivastava, O P.

Subjects/Keywords: ceramic precursors; titania; zirconia

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APA (6^th Edition):

Kumar, N. (2005). Synthesis charcterization and application of titania and zirconia based ceramic precursors; -. (Thesis). INFLIBNET. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/44971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kumar, Narendra. “Synthesis charcterization and application of titania and zirconia based ceramic precursors; -.” 2005. Thesis, INFLIBNET. Accessed July 20, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/44971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kumar, Narendra. “Synthesis charcterization and application of titania and zirconia based ceramic precursors; -.” 2005. Web. 20 Jul 2019.

Vancouver:

Kumar N. Synthesis charcterization and application of titania and zirconia based ceramic precursors; -. [Internet] [Thesis]. INFLIBNET; 2005. [cited 2019 Jul 20]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44971.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kumar N. Synthesis charcterization and application of titania and zirconia based ceramic precursors; -. [Thesis]. INFLIBNET; 2005. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/44971

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

28. Matos, Bruno Ribeiro de. Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica.

Degree: Mestrado, Tecnologia Nuclear - Materiais, 2008, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-10062008-143233/ ;

►

A fabricação e a caracterização de eletrólitos compósitos Nafion - TiO2, e seu uso em células PEM (Proton Exchange Membrane) operando em temperaturas elevadas (~… (more)

▼

A fabricação e a caracterização de eletrólitos compósitos Nafion - TiO2, e seu uso em células PEM (Proton Exchange Membrane) operando em temperaturas elevadas (~ 130 ºC) foram estudados. A operação em altas temperaturas da célula PEM traz benefícios, como o aumento da cinética das reações eletródicas, o aumento da cinética de transporte difusional nos eletrodos e o aumento da tolerância da célula ao contaminante monóxido de carbono. O Nafion ®, eletrólito polimérico comumente empregado em células PEM, possui condutividade elétrica dependente da quantidade de água contida em sua estrutura. Desta forma, o aumento da temperatura de operação da célula acima de 100 ºC causa a desidratação do polímero diminuindo acentuadamente sua condutividade elétrica. Para aumentar o desempenho dos eletrólitos operando em altas temperaturas, eletrólitos compósitos (Nafion-TiO2) foram preparados pelo método de conformação por evaporação em molde. A adição de partículas higroscópicas de titânia (TiO2) na matriz polimérica visa melhorar as condições de umidificação do eletrólito em temperaturas elevadas. Três tipos de partículas de titânia com diferentes áreas de superfície específica e formas distintas foram investigados. Compósitos à base de Nafion com adição de 2,5 a 15% em massa de partículas de titânia com forma aproximadamente esférica e com área de superfície específica de até ~115 m2g-1 apresentaram maiores valores da temperatura de transição vítrea do que o polímero. Este aumento melhora a estabilidade do eletrólito durante a operação de células a combustível PEM em 130 ºC. Os compósitos formados a partir da adição de nanotubos derivados de titânia apresentaram pronunciado ganho de desempenho e maior estabilidade térmica em operação de células acima de 100 ºC. Neste caso, a elevada área superficial e a forma dos nanotubos de titânia contribuíram significativamente para o aumento da absorção e da retenção de água do compósito. Por outro lado, as curvas de polarização mostraram um aumento na polarização por queda ôhmica com o aumento da concentração das partículas cerâmicas adicionadas. A morfologia do polímero não foi alterada com a adição de partículas inorgânicas, portanto, o desempenho dos compósitos reflete uma competição entre a adição de uma fase isolante, que diminui a condutividade elétrica, e o aumento da estabilidade térmica ou da retenção de água do compósito. Os eletrólitos compósitos testados provaram serem promissores na aplicação em células PEM em temperaturas acima de 100 ºC.

The fabrication and characterization of Nafion - TiO2 composites, and the use of such electrolytes in PEM (Proton Exchange Membrane) fuel cell operating at high temperature (130 °C) were studied. The operation of a PEM fuel cell at such high temperature is considered as an effective way to promote fast electrode reaction kinetics, high diffusional transport, and high tolerance to the carbon monoxide fuel contaminant. The polymer Nafion® is the most used electrolyte in PEM fuel cells due to its high proton conductivity. However, the proton…

Advisors/Committee Members: Fonseca, Fabio Coral.

Subjects/Keywords: Célula a Combustível.; composite; Compósito; fuel cell; nafion; Nafion; titania; Titânia

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APA (6^th Edition):

Matos, B. R. d. (2008). Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/85/85134/tde-10062008-143233/ ;

Chicago Manual of Style (16^th Edition):

Matos, Bruno Ribeiro de. “Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica.” 2008. Masters Thesis, University of São Paulo. Accessed July 20, 2019. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-10062008-143233/ ;.

MLA Handbook (7^th Edition):

Matos, Bruno Ribeiro de. “Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica.” 2008. Web. 20 Jul 2019.

Vancouver:

Matos BRd. Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica. [Internet] [Masters thesis]. University of São Paulo; 2008. [cited 2019 Jul 20]. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-10062008-143233/ ;.

Council of Science Editors:

Matos BRd. Preparação e caracterização de eletrólitos compósitos Nafion - TiO2 para aplicação em células a combustível de membrana de troca protônica. [Masters Thesis]. University of São Paulo; 2008. Available from: http://www.teses.usp.br/teses/disponiveis/85/85134/tde-10062008-143233/ ;

Texas A&M University

29. Allen, Tyler Winston. Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods.

Degree: 2013, Texas A&M University

URL: http://hdl.handle.net/1969.1/149557

► This thesis examines the effects of nanoparticle, metal-oxide additives on the burning rate of composite solid propellants. Recent advancements in chemical synthesis techniques have allowed… (more)

▼ This thesis examines the effects of nanoparticle, metal-oxide additives on the burning rate of composite solid propellants. Recent advancements in chemical synthesis techniques have allowed for the production of improved solid rocket propellant nano-scale additives. These additives show larger burning rate increases in composite propellants compared to previous additive generations. In addition to improving additive effectiveness, novel synthesis methods can improve manufacturability, reduce safety risks, and maximize energy efficiency of nano-scale burning rate enhancers. Several different nano-sized additives, each titania-based, were tested and compared for the same baseline AP/HTPB formulas and AP size distributions. The various methods demonstrate the evolution in our methods from spray-dried powders to pre-mixing the additive in the HTPB binder, and finally to a method of producing the additive directly in the binder as a nano-assembly. Burning rate increases as high as 80% at additive mass loadings of less than 0.5% were seen in non-aluminized, ammonium perchlorate-based propellants over the pressure spectrum of 500 psi (3.5 MPa) to 2250 psi (15.5 MPa). Increases in burning rate up to 73% were seen in similarly formulated aluminized propellants. During the past several years, the research team has refined laboratory-scale techniques for quickly and reliably assessing the mixing and performance of composite propellants with catalytic nanoparticle additives. This thesis also documents some of the details related to repeatability, accuracy, and realism of the methods used in the team?s recent nano-additive research; it also introduces the latest techniques for producing propellants with nano-sized additives and provides new burning rate results for the entire scope of additives and mixing methods. Details on the propellant characterization methods with regard to physical and combustion properties are provided. Snapshots from atmospheric propellant combustion videos taken with a Photron FASTCAM SA3 high-speed camera are included along with existing pressure and light-emission responses. Advisors/Committee Members: Petersen, Eric L. (advisor), Cagin, Tahir (committee member), Ranjan, Devesh (committee member).

Subjects/Keywords: rocket propellant; nanoparticle; catalyst; composite propellant; propellant; titania; propellant testing

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APA (6^th Edition):

Allen, T. W. (2013). Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/149557

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Allen, Tyler Winston. “Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods.” 2013. Thesis, Texas A&M University. Accessed July 20, 2019. http://hdl.handle.net/1969.1/149557.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Allen, Tyler Winston. “Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods.” 2013. Web. 20 Jul 2019.

Vancouver:

Allen TW. Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods. [Internet] [Thesis]. Texas A&M University; 2013. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/1969.1/149557.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Allen TW. Laboratory-Scale Burning and Characterizing of Composite Solid Propellant for Studying Novel Nanoparticle Synthesis Methods. [Thesis]. Texas A&M University; 2013. Available from: http://hdl.handle.net/1969.1/149557

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kyoto University / 京都大学

30. Tanaka, Toshiyuki. Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究.

Degree: 博士(工学), 2013, Kyoto University / 京都大学

URL: http://hdl.handle.net/2433/180359 ; http://dx.doi.org/10.14989/doctor.r12770

新制・論文博士

乙第12770号

論工博第4096号

Subjects/Keywords: NOX; reduction; storage; adsorption; titania

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tanaka, T. (2013). Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究. (Thesis). Kyoto University / 京都大学. Retrieved from http://hdl.handle.net/2433/180359 ; http://dx.doi.org/10.14989/doctor.r12770

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tanaka, Toshiyuki. “Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究.” 2013. Thesis, Kyoto University / 京都大学. Accessed July 20, 2019. http://hdl.handle.net/2433/180359 ; http://dx.doi.org/10.14989/doctor.r12770.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tanaka, Toshiyuki. “Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究.” 2013. Web. 20 Jul 2019.

Vancouver:

Tanaka T. Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究. [Internet] [Thesis]. Kyoto University / 京都大学; 2013. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/2433/180359 ; http://dx.doi.org/10.14989/doctor.r12770.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tanaka T. Studies on NOx purification catalysts under excess oxygen conditions : 酸素過剰条件下におけるNOx浄化触媒に関する研究. [Thesis]. Kyoto University / 京都大学; 2013. Available from: http://hdl.handle.net/2433/180359 ; http://dx.doi.org/10.14989/doctor.r12770

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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Open Access Theses and Dissertations