subject:(surface chemistry)

Rutgers University

1. Gao, Xiang, 1986-. Hofmeister series at the liquid/liquid interface.

Degree: PhD, Chemistry and Chemical Biology, 2016, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/51291/

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This thesis is a study of the Hofmeister Series, or specific ion effects, at 3 interfaces: a zwitterionic emulsion interface, a gemini surfactant micelle interface… (more)

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This thesis is a study of the Hofmeister Series, or specific ion effects, at 3 interfaces: a zwitterionic emulsion interface, a gemini surfactant micelle interface and a neat tetradecane/water interface. The goal of this research is to provide new information such as local pH changes and local counterions concentrations to the specific ion effects research at liquid/liquid interfaces, which might help unveil the origin of specific ion effects. This research utilized a unique chemical probe to study how different ions affect the physical chemical properties of the 3 interfaces. The probe molecule is a long chain amphiphilic arenediazonium ion. In micellar solutions, emulsions and oil/water mixture, the probe associates at the hydrophilic/hydrophobic interfacial region like other amphiphilic molecules do, and then reacts with water molecules and weak nucleophiles to produce corresponding organic products. The yields of products are analyzed by HPLC and used to calculate the interfacial concentrations of ions and water molecules. Using this method we can study the behavior of various ions and molecules at the interfacial region. The background of this method is introduced in Chapter 1. Chapter 2 describes the specific ion effects on the interfacial pH of an emulsion prepared by a zwitterionic surfactant. The headgroup of SB3-14 has different affinities to different anions and cations, which changes ions density at the interfacial region and accordingly alters interface electronic property as well as the interfacial pH. The interfacial pH change was monitored through measuring the reaction rate between a long chain arenediazonium ion and tÂ¬-butylhydroquinone. Chapter 3 is a study of specific counterion effects on gemini surfactants (10-2-10 2X) physical properties such as cmc, aggregation number and interfacial counterion molarity. The ions affect micellar solutions properties in the order of Hofmeister Series. By combining physical characterization means and chemical trapping experiments, the correlation between bulky properties and interfacial properties were observed. Chapter 4 describes the adsorption of different anions onto a neat alkane/water interface. The chemical trapping method was used to probe anions interfacial concentrations at tetradecane/water interface, which were proved to be higher than their bulk concentrations, especially for hydrophobic ions I-, SCN-. Ions adsorption at the interface is supported by other types of experimental and simulation approaches in the literature.

Advisors/Committee Members: Romsted, Laurence S. (chair), Taylor, John (internal member), Warmuth, Ralf (internal member), HUANG, QINGRONG (outside member).

Subjects/Keywords: Surface chemistry

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APA (6^th Edition):

Gao, Xiang, 1. (2016). Hofmeister series at the liquid/liquid interface. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/51291/

Chicago Manual of Style (16^th Edition):

Gao, Xiang, 1986-. “Hofmeister series at the liquid/liquid interface.” 2016. Doctoral Dissertation, Rutgers University. Accessed January 24, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/51291/.

MLA Handbook (7^th Edition):

Gao, Xiang, 1986-. “Hofmeister series at the liquid/liquid interface.” 2016. Web. 24 Jan 2021.

Vancouver:

Gao, Xiang 1. Hofmeister series at the liquid/liquid interface. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Jan 24]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/51291/.

Council of Science Editors:

Gao, Xiang 1. Hofmeister series at the liquid/liquid interface. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/51291/

Purdue University

2. Benjamin, Christopher Jerome. NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY.

Degree: PhD, Chemistry, 2015, Purdue University

URL: https://docs.lib.purdue.edu/open_access_dissertations/1091

► Single-particle reconstruction has grown significantly with the improvements in various data collection and computational strategies including CTF fitting, the use of vitrified samples and the… (more)

Subjects/Keywords: Surface Chemistry

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

APA (6^th Edition):

Benjamin, C. J. (2015). NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY. (Doctoral Dissertation). Purdue University. Retrieved from https://docs.lib.purdue.edu/open_access_dissertations/1091

Chicago Manual of Style (16^th Edition):

Benjamin, Christopher Jerome. “NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY.” 2015. Doctoral Dissertation, Purdue University. Accessed January 24, 2021. https://docs.lib.purdue.edu/open_access_dissertations/1091.

MLA Handbook (7^th Edition):

Benjamin, Christopher Jerome. “NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY.” 2015. Web. 24 Jan 2021.

Vancouver:

Benjamin CJ. NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY. [Internet] [Doctoral dissertation]. Purdue University; 2015. [cited 2021 Jan 24]. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1091.

Council of Science Editors:

Benjamin CJ. NON-FOULING AFFINITY PLATFORMS FOR PROTEIN IMMOBILIZATION IN ELECTRON MICROSCOPY. [Doctoral Dissertation]. Purdue University; 2015. Available from: https://docs.lib.purdue.edu/open_access_dissertations/1091

Freie Universität Berlin

3. Schwarz, Felix Benjamin. Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen.

Degree: 2017, Freie Universität Berlin

URL: http://dx.doi.org/10.17169/refubium-12218

► Die vorliegende Dissertation beschäftigt sich unter dem Oberthema der stimuli- responsiven supramolekularen Systeme mit photoschaltbaren Rotaxanen in Lösung und auf Oberflächen, sowie in einem Nebenprojekt… (more)

▼ Die vorliegende Dissertation beschäftigt sich unter dem Oberthema der stimuli- responsiven supramolekularen Systeme mit photoschaltbaren Rotaxanen in Lösung und auf Oberflächen, sowie in einem Nebenprojekt mit der Untersuchung einer dynamischen kombinatorischen Bibliothek mittels Massenspektrometrie. Zwei neue photoschaltbare Bindungsstationen für Hunter-Vögtle-Tetralactam-Makrozyklen wurden unter Einsatz von Azobenzol und Spiropyran als photoschaltbare Elemente entwickelt und untersucht. Beide Bindungsstationen können reversibel zwischen einem bindenden und einem nicht-bindenden Zustand geschaltet werden. Auf Grundlage dieser Bindungsstationen wurden verschiedene photoschaltbare Rotaxane synthetisiert, in denen ein Licht Stimulus zu einer Verschiebung des Makrozyklus entlang der Achse führt. Die reversible Photoschaltung der Rotaxane wurde detailliert in Lösung mit UV-Vis- und NMR-Spektroskopie untersucht. Es konnte eine lichtgesteuerte Pseudorotaxanbildung der Azobenzol- Bindungsstation mit geordneten Makrozyklus-Multilagen auf Oberflächen gezeigt werden. Glas-, Silizium- und Goldoberflächen wurden hierzu mit pyridinterminierten SAMs gefolgt von Multilagen von Tetralaktam-Makrozyklen mittels layer-by-layer self-assembly beschichtet. Die lichtgesteuerte Einlagerung der Bindungsstation in die oberflächengebundenen Multilagen konnte mit UV-Vis , XPS- und NEXAFS-Spektroskopie verfolgt werden. Mit Hilfe von winkelabhängigen NEXAFS-Messungen wurde eine Vorzugsorientierung der Makrozyklus-Multilagen nachgewiesen, welche durch die Einlagerung der Azobenzol-Bindungsstation verstärkt wurde. Ein azobenzolbasiertes photoschaltbares Rotaxan konnte mit einer Terpyridin- oder Alkingruppe funktionalisiert und mittels layer-by-layer self-assembly oder Azid-Alkin- Clickchemie in einer Monolage auf Glas- und Siliziumoberflächen abgeschieden werden. Die Photoschaltung auf der Oberfläche wurde detailliert mit Kontaktwinkelmessungen, UV-Vis-, XPS- und NEXAFS-Spektroskopie untersucht. Sowohl die kovalent als auch die koordinativ gebundenen Rotaxane konnten mit Licht verschiedener Wellenlängen reversibel zwischen zwei Zuständen geschaltet werden. Mit NEXAFS-Spektroskopie wurde eine Vorzugsorientierung der Rotaxane nachgewiesen, welche sich durch die Photoschaltung reversibel ändert. Eine dynamische kombinatorische Bibliothek von M4L6-Käfigen wurde mit ESI-FTICR-MS- und IRMPD-Experimenten untersucht, wobei eine qualitative und quantitative Bestimmung aller konstitutionellen Isomere und ihrer relativen Konzentrationen durchgeführt wurde. Die Zugabe eines Kronenethers oder eines C70-Fullerens beeinflusste die konstitutionelle Zusammensetzung der DCL. Advisors/Committee Members: m (gender), Prof. Dr. Christoph A. Schalley (firstReferee), Prof. Dr. Rainer Haag (furtherReferee).

Subjects/Keywords: supramolecular chemistry; photochemistry; surface chemistry; 500 Naturwissenschaften und Mathematik::540 Chemie::547 Organische Chemie

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APA (6^th Edition):

Schwarz, F. B. (2017). Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-12218

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):

Schwarz, Felix Benjamin. “Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen.” 2017. Thesis, Freie Universität Berlin. Accessed January 24, 2021. http://dx.doi.org/10.17169/refubium-12218.

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

MLA Handbook (7^th Edition):

Schwarz, Felix Benjamin. “Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen.” 2017. Web. 24 Jan 2021.

Vancouver:

Schwarz FB. Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen. [Internet] [Thesis]. Freie Universität Berlin; 2017. [cited 2021 Jan 24]. Available from: http://dx.doi.org/10.17169/refubium-12218.

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

Council of Science Editors:

Schwarz FB. Stimuli-Responsive Supramolekulare Systeme: Von Dynamischen Kombinatorischen Bibliotheken zu Photoschaltbaren Rotaxanen auf Oberflächen. [Thesis]. Freie Universität Berlin; 2017. Available from: http://dx.doi.org/10.17169/refubium-12218

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

Rutgers University

4. Hu, Lixin, 1987-. Continuum and atomistic models of surface elasticity and applications.

Degree: PhD, Mechanical and Aerospace Engineering, 2015, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/46353/

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We present an analysis of surface elasticity from the Born-Oppenheimer approximation for monatomic crystals. The analysis shows that the relaxations of crystal planes parallel to… (more)

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We present an analysis of surface elasticity from the Born-Oppenheimer approximation for monatomic crystals. The analysis shows that the relaxations of crystal planes parallel to a free surface can be sufficiently determined by a low-rank algebraic Riccati equation instead of a full-scale molecular dynamic (MD) simulation, and gives new restrictions on physically reasonable atomistic models and simple criteria for surface reconstructions. In the case of surface relaxations, we calculate surface elasticity properties from atomistic models, which are compared with experimental data and prior simulation results. This fundamental research is useful in a variety of applications. First, with the help of the proposed algorithm we quickly calculate the surface tension and determine the equilibrium shape of crystals. Secondly, in previous studies of wave propagation the impact of surface elasticity was not noticed. We find that when the surface/interface gains its own elasticity, the inhomogeneities between the bulk and the surface/interface result in nonlinearity for both interfacial and bulk wave propagation aspects. We study the interfacial wave between two half-spaces with surface elasticity taken into account. ii A sufficient condition for the existence and uniqueness of a subsonic interfacial wave is obtained for general anisotropic materials. In addition, from explicitly calculated dispersion relations of interfacial waves for interfaces between two solids and solid & fluid, we observe that the dispersion relations of interfacial waves are nonlinear at the presence of surface elasticity and depend on surface elasticity parameters. Further, we analyze the wave reflection and refraction with surface elasticity. We find that both the amplitude ratios and energy rates of reflected and refracted waves become dependent on the incident wave frequency. Also, the analysis of the existence of reflected and refracted waves shows that when the incident angle is above some critical angle, the corresponding reflected or refracted waves become typical interfacial waves. Finally, from Landau phenomenological theory we propose a model for size dependence of phase transformation temperature of ferroelectric nano-particles. We postulate that the surface effect plays an important role of such size effect. Our model shows the size dependence and predicts the critical size for certain ferroelectric particles.

Advisors/Committee Members: Liu, Liping (chair), Shan, Jerry (internal member), NORRIS, ANDREW (internal member), Han, Zheng-Chao (outside member).

Subjects/Keywords: Elasticity; Surface energy; Surface chemistry

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APA (6^th Edition):

Hu, Lixin, 1. (2015). Continuum and atomistic models of surface elasticity and applications. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/46353/

Chicago Manual of Style (16^th Edition):

Hu, Lixin, 1987-. “Continuum and atomistic models of surface elasticity and applications.” 2015. Doctoral Dissertation, Rutgers University. Accessed January 24, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/46353/.

MLA Handbook (7^th Edition):

Hu, Lixin, 1987-. “Continuum and atomistic models of surface elasticity and applications.” 2015. Web. 24 Jan 2021.

Vancouver:

Hu, Lixin 1. Continuum and atomistic models of surface elasticity and applications. [Internet] [Doctoral dissertation]. Rutgers University; 2015. [cited 2021 Jan 24]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/46353/.

Council of Science Editors:

Hu, Lixin 1. Continuum and atomistic models of surface elasticity and applications. [Doctoral Dissertation]. Rutgers University; 2015. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/46353/

University of Oxford

5. Raine, Elizabeth. The architecture of nanoparticle surfaces and interfaces.

Degree: PhD, 2018, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:6057a92a-318e-4e97-8808-c03dedf45d8c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.786111

► Heterogeneous catalysts are vital for many industrial processes, however the high compositions of platinum group metals mean that the catalysts are often expensive and are… (more)

Subjects/Keywords: Surface chemistry; Chemistry, Inorganic

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APA (6^th Edition):

Raine, E. (2018). The architecture of nanoparticle surfaces and interfaces. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:6057a92a-318e-4e97-8808-c03dedf45d8c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.786111

Chicago Manual of Style (16^th Edition):

Raine, Elizabeth. “The architecture of nanoparticle surfaces and interfaces.” 2018. Doctoral Dissertation, University of Oxford. Accessed January 24, 2021. http://ora.ox.ac.uk/objects/uuid:6057a92a-318e-4e97-8808-c03dedf45d8c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.786111.

MLA Handbook (7^th Edition):

Raine, Elizabeth. “The architecture of nanoparticle surfaces and interfaces.” 2018. Web. 24 Jan 2021.

Vancouver:

Raine E. The architecture of nanoparticle surfaces and interfaces. [Internet] [Doctoral dissertation]. University of Oxford; 2018. [cited 2021 Jan 24]. Available from: http://ora.ox.ac.uk/objects/uuid:6057a92a-318e-4e97-8808-c03dedf45d8c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.786111.

Council of Science Editors:

Raine E. The architecture of nanoparticle surfaces and interfaces. [Doctoral Dissertation]. University of Oxford; 2018. Available from: http://ora.ox.ac.uk/objects/uuid:6057a92a-318e-4e97-8808-c03dedf45d8c ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.786111

Freie Universität Berlin

6. Richter, Sebastian. Programmable Metallo-Supramolecular Multilayers on Gold Surfaces.

Degree: 2013, Freie Universität Berlin

URL: http://dx.doi.org/10.17169/refubium-10638

► The present thesis describes the assembly and investigation of programmable metallosupra-molecular multilayers of macrocycles and rotaxanes on gold surfaces. First of all, different pyridine- and… (more)

▼ The present thesis describes the assembly and investigation of programmable metallosupra-molecular multilayers of macrocycles and rotaxanes on gold surfaces. First of all, different pyridine- and terpyridine-functionalized thiols were synthesized. The dep-osition of these molecules on gold surfaces results in the corresponding pyridine- and terpyri-dine-terminated self- assembled monolayers (SAMs). Additionally, terpyridine-terminated monolayers were formed using surface-bound azide/alkine click chemistry. The correspond- ing layers were extensively investigated experimentally and theoretically. It is shown that the pyridines and terpyridines of all SAMs are capable of coordinating transition metal ions. Fur-thermore, the metal-mediated deposition of macrocycle and rotaxane monolayers on the cor-responding SAMs was performed. Herein, the macrocycles and rotaxanes are preferentially oriented on the surface as a result of self-assembling processes. In order to form densely packed and highly stable macrocycle multilayers, a layer-by-layer self-assembly approach was applied. The multilayer formation was conducted alternatingly depositing metal-ions and macrocycles on different SAMs. Furthermore, mixed multilayers consisting of pyridine- and terpyridine- terminated macrocycles and several metal-ions within one layer stack were deposited. The component sequence can be programmed at will by adapting the corresponding deposition sequence. As a result of self-assembly processes, all macrocycle multilayers were found to be preferentially oriented. Furthermore, reversible on-surface pseudorotaxane formation was performed successfully giving evidence for the ac-cessibility of the densely packed macrocycles. The guest molecules were found to even pen-etrate into the lower layers of the multilayer. The characterization of all investigated organic mono- and multilayers was performed using X-ray photoelectron spectroscopy (XPS), near edge X-ray absorption fine structure (NEXAFS), time-of-flight secondary ion mass spectrometry (ToF-SIMS), transmission-UV/Vis spectroscopy and atomic force microscopy (AFM). Advisors/Committee Members: [email protected] (contact), m (gender), Prof. Dr. Christian Müller (inspector), Prof. Dr. Biprajit Sarkar (inspector), Priv.-Doz. Dr. Burkhard Kirste (inspector), Dr. Wolfgang E. S. Unger (inspector), Prof. Dr. Christoph A. Schalley (firstReferee), Prof. Dr. Rainer Haag (furtherReferee).

Subjects/Keywords: supramolecular chemistry; surface chemistry; self-assembled monolayer; multilayer; metallo-supramolecular complexes; 500 Naturwissenschaften und Mathematik::540 Chemie::547 Organische Chemie

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APA (6^th Edition):

Richter, S. (2013). Programmable Metallo-Supramolecular Multilayers on Gold Surfaces. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-10638

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):

Richter, Sebastian. “Programmable Metallo-Supramolecular Multilayers on Gold Surfaces.” 2013. Thesis, Freie Universität Berlin. Accessed January 24, 2021. http://dx.doi.org/10.17169/refubium-10638.

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

MLA Handbook (7^th Edition):

Richter, Sebastian. “Programmable Metallo-Supramolecular Multilayers on Gold Surfaces.” 2013. Web. 24 Jan 2021.

Vancouver:

Richter S. Programmable Metallo-Supramolecular Multilayers on Gold Surfaces. [Internet] [Thesis]. Freie Universität Berlin; 2013. [cited 2021 Jan 24]. Available from: http://dx.doi.org/10.17169/refubium-10638.

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

Council of Science Editors:

Richter S. Programmable Metallo-Supramolecular Multilayers on Gold Surfaces. [Thesis]. Freie Universität Berlin; 2013. Available from: http://dx.doi.org/10.17169/refubium-10638

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

Temple University

7. Singireddy, Soujanya. SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS.

Degree: PhD, 2013, Temple University

URL: http://digital.library.temple.edu/u?/p245801coll10,225394

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Chemistry

The focus of the thesis research was to investigate the surface reactivity of three different minerals, pyrite (FeS2), an ordered form of ferrihydrite (an… (more)

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Chemistry

The focus of the thesis research was to investigate the surface reactivity of three different minerals, pyrite (FeS2), an ordered form of ferrihydrite (an iron oxyhydroxide phase), and birnessite (MnO2), toward environmentally relevant aqueous reactants. In particular, research was carried out with the goals of 1) understanding the redox chemistry of nitrite (NO2-) and nitrate (NO3-) on pyrite and 2) understanding the redox (photo) chemistry of arsenite (AsO2-, As(III)) on ordered ferrihydrite and birnessite. A motivation for all these studies stemmed in part from the recognition that NO2-, NO3-, and As(III) are all environmental pollutants when they are present at sufficiently high concentration in the environment. The removal of these species or conversion of each of them on mineral surfaces to more benign chemical species is of importance in the realm of environmental chemistry. In the case of NO2- and NO3- on pyrite, an additional and primary motivation for the research was that it has been hypothesized in the "origin-of-life" community that the reaction of NO2- and NO3- with iron sulfide (e.g., pyrite) may have played a role in the production of ammonia (NH3) on early Earth. Such prebiotic chemistry had been hypothesized to an essential step in the production of biomolecules that included proteins. With regard to the NO2- reaction with pyrite, results detailed in this thesis showed that ammonia in µmol/kg quantities could be produced by reacting NO2- in the presence of pyrite under anaerobic conditions. The concentration of NH3 (detected as ammonium, NH4+, in solution) was a strong function of the reaction temperature. At the lower temperatures studied (22 °C and 70 °C), a small amount of NH4+ was formed, but µmol.kg-1 amounts of NH4+ were formed at a reaction temperature of 120 °C. Only about 5% of the initial NO2- concentration was converted to NH4+. In the NO3-/pyrite system, the NO3- reactant concentration remained unchanged at all the three reaction temperatures studied, consistent with the low amounts of NH4+ formed in these experiments. Finally, it was shown using in situ infrared spectroscopy that surface-bound NO formed on pyrite during the conversion of the nitrogen oxides to ammonia. Overall, it was shown that the kinetics of NH4+ formation was slower for NO3- than that observed for NO2-. Studies presented in this thesis that focused on the surface reactivity of As(III) on ordered ferrihydrite and birnessite nano particles showed that As(III) could be oxidized to arsenate (referred to as As(V)) in the presence of simulated solar radiation. In the ordered ferrihydrite circumstance the adsorption of As(III) and photo-induced oxidation to As(V) was compared to the same reaction on the more disordered and smaller ferrihydrite particles (known as "2-line" ferrihydrite). A comparison of the adsorption rate of As(III) on the two surfaces in the presence of light after normalizing for differences in surface area showed that the ordered ferrihydrite exhibited a higher arsenic…

Advisors/Committee Members: Strongin, Daniel R.;, Spano, Francis C., Zdilla, Michael J., Zhang, Huichun;.

Subjects/Keywords: Chemistry;

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APA (6^th Edition):

Singireddy, S. (2013). SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS. (Doctoral Dissertation). Temple University. Retrieved from http://digital.library.temple.edu/u?/p245801coll10,225394

Chicago Manual of Style (16^th Edition):

Singireddy, Soujanya. “SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS.” 2013. Doctoral Dissertation, Temple University. Accessed January 24, 2021. http://digital.library.temple.edu/u?/p245801coll10,225394.

MLA Handbook (7^th Edition):

Singireddy, Soujanya. “SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS.” 2013. Web. 24 Jan 2021.

Vancouver:

Singireddy S. SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS. [Internet] [Doctoral dissertation]. Temple University; 2013. [cited 2021 Jan 24]. Available from: http://digital.library.temple.edu/u?/p245801coll10,225394.

Council of Science Editors:

Singireddy S. SURFACE REACTIVITY OF IRON, MANGANESE MINERALS AND THEIR ENVIRONMENTAL IMPLICATIONS. [Doctoral Dissertation]. Temple University; 2013. Available from: http://digital.library.temple.edu/u?/p245801coll10,225394

University of Rochester

8. Shi, Miao (1985 - ). Surface modification of copper nanoparticles and their toxicity studies.

Degree: PhD, 2013, University of Rochester

URL: http://hdl.handle.net/1802/27894

► Nanomaterials have been used in various areas including those with close human contact. However, the area of nanotoxicology hasn’t gained much attention until 2000s, when… (more)

▼ Nanomaterials have been used in various areas including those with close human contact. However, the area of nanotoxicology hasn’t gained much attention until 2000s, when a range of studies were carried out to investigate the side effects of the usage of nanoparticles and subsequent mechanisms of toxicity. Copper nanoparticles are used in commercial products such as inks, lubricants, and coatings, etc. However, copper nanoparticles are known to be cytotoxic. Many studies have been done on the toxicity of copper-related nanomaterials, but contradicting conclusions were drawn and the mechanism of toxicity needs to be unveiled. In this thesis, we developed well-controlled copper nanoparticles with defined size and surface chemistry. Mercaptocarboxylic acids with different carbon chain lengths and thioctic acid terminated-PEG ligand (TA) were used for stabilizing uniform copper nanoparticles. The effects of surface chemistry such as ligand type and surface oxidation on the reactive oxygen species (ROS) generated by the copper nanoparticles were examined. An acellular ROS assay show that ROS generation is closely related to the surface oxidation of copper nanoparticles. It was found that the copper nanoparticles with long chain ligands had surfaces that were better protected from oxidation and a low ROS generating capacity than did particles with short chain ligands. Copper nanoparticles with highly hydrophilic surface (Cu-TA) showed fast dissolution into smaller Cu2O fragments (< 3 nm) during incubation in buffer solution. These fragments were found to generate higher ROS than the original nanoparticles. These well-defined uniform copper nanoparticles with different ligands were also used to study the effects of surface property on copper-protein interactions. Bovine serum albumin (BSA) was used as a standard protein to study. We found sharply enhanced BSA adsorption on Cu-TA. The available surfaces exposed to BSA and the adsorption orientations were found to be the most important factors. We also found that the copper nanoparticles during oxidation formed Cu2O fragments, which may add insight for the toxicity of copper nanoparticles in vitro or in vivo. Further, the effects of surface chemistry on toxicity of copper nanoparticles towards A549luc cells were examined. We consistently found that copper nanoparticles formed Cu2O fragments during oxidation. Different surface chemistry resulted in different morphology changes of copper nanoparticles during incubation, and also different dissolution rates, which are critical for the toxicity results. Along with dosimetry studies, we proposed that intra-cellular release of copper ions is the major cause for the toxicity of copper nanoparticles to A549luc cells.

Subjects/Keywords: Copper nanoparticles; Surface chemistry; Surface modification; Toxicity

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APA (6^th Edition):

Shi, M. (. -. ). (2013). Surface modification of copper nanoparticles and their toxicity studies. (Doctoral Dissertation). University of Rochester. Retrieved from http://hdl.handle.net/1802/27894

Chicago Manual of Style (16^th Edition):

Shi, Miao (1985 - ). “Surface modification of copper nanoparticles and their toxicity studies.” 2013. Doctoral Dissertation, University of Rochester. Accessed January 24, 2021. http://hdl.handle.net/1802/27894.

MLA Handbook (7^th Edition):

Shi, Miao (1985 - ). “Surface modification of copper nanoparticles and their toxicity studies.” 2013. Web. 24 Jan 2021.

Vancouver:

Shi M(-). Surface modification of copper nanoparticles and their toxicity studies. [Internet] [Doctoral dissertation]. University of Rochester; 2013. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1802/27894.

Council of Science Editors:

Shi M(-). Surface modification of copper nanoparticles and their toxicity studies. [Doctoral Dissertation]. University of Rochester; 2013. Available from: http://hdl.handle.net/1802/27894

9. Swaminathan-Gopalan, Krishnan. Development of physical models for the mesoscopic simulation of gas-surface interactions.

Degree: PhD, Mechanical Engineering, 2019, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/106158

► This work is focused on the development of physically consistent models for the mesoscopic and macroscopic simulation of gas-surface interactions relevant for hypersonics and high-temperature… (more)

▼ This work is focused on the development of physically consistent models for the mesoscopic and macroscopic simulation of gas-surface interactions relevant for hypersonics and high-temperature aerothermodynamic applications. Both nonreactive and reactive interactions are considered with a special focus on desorption. The aim of the work is to employ microscopic information in the form of detailed experiments, numerical simulations, and fundamental theories, as a basis to construct general, accurate and physically realistic models for the interaction of oxygen: atomic (reactive) and molecular (non-reactive) with carbon surfaces: flat (vitreous) and complex porous microstructure (FiberForm®) at high temperatures ranging from 500 K to 2000 K. These models may be employed directly in conventional computational fluid dynamics (CFD), kinetic simulation, and material response tools for the study of non-equilibrium gas-surface interactions. A detailed finite-rate surface chemistry model for the interaction of oxygen with vitreous carbon (VC) surface is developed from molecular beam experimental data using direct simulation Monte Carlo (DSMC). First, a generalized finite-rate surface chemistry framework incorporating a comprehensive list of reaction mechanisms is developed and implemented into the DSMC solver. The various mechanisms include adsorption, desorption, Eley-Rideal (ER), and several types of Langmuir-Hinshelwood (LH) mechanisms. Both gas-surface (e.g., adsorption, ER) and pure-surface (e.g., desorption) reaction mechanisms are incorporated, and the framework also includes catalytic or surface altering mechanisms involving the participation of the bulk-phase species (e.g., bulk carbon atoms). Expressions for the microscopic parameters of reaction probabilities (for gas-surface reactions) and frequencies (for pure-surface reactions) that are required for DSMC are derived from the surface properties and macroscopic parameters such as rate constants, sticking coefficients, etc. This framework is used to numerically simulate the hyperthermal pulsed beam surface scattering experiments. Next, a general methodology for constructing finite rate surface chemistry models using time-of flight (TOF) and angular distribution data obtained from pulsed hyperthermal beam experiments is presented. A detailed study is performed to analyze the TOF distributions corresponding to the various reaction mechanisms at diverse conditions using the DSMC surface chemistry framework. This information is used to identify and isolate the products formed through different reaction mechanisms from the molecular beam experimental data of oxygen on vitreous carbon. A general methodology to derive the reaction rate constants which takes into account the pulsed nature of the beam is described and used to derive the rates within the vitreous carbon oxidation model. The constructed finite rate surface chemistry model provides excellent agreement with the experimental TOF and angular distribution as well as the total product fluxes. As a next step,… Advisors/Committee Members: Stephani, Kelly (advisor), Stephani, Kelly (Committee Chair), Ertekin, Elif (committee member), Glumac, Nick (committee member), Flaherty, David (committee member), Mansour, Nagi (committee member).

Subjects/Keywords: Gas-Surface Interactions; Surface Chemistry; Carbon oxidation

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APA (6^th Edition):

Swaminathan-Gopalan, K. (2019). Development of physical models for the mesoscopic simulation of gas-surface interactions. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/106158

Chicago Manual of Style (16^th Edition):

Swaminathan-Gopalan, Krishnan. “Development of physical models for the mesoscopic simulation of gas-surface interactions.” 2019. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 24, 2021. http://hdl.handle.net/2142/106158.

MLA Handbook (7^th Edition):

Swaminathan-Gopalan, Krishnan. “Development of physical models for the mesoscopic simulation of gas-surface interactions.” 2019. Web. 24 Jan 2021.

Vancouver:

Swaminathan-Gopalan K. Development of physical models for the mesoscopic simulation of gas-surface interactions. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2019. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2142/106158.

Council of Science Editors:

Swaminathan-Gopalan K. Development of physical models for the mesoscopic simulation of gas-surface interactions. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2019. Available from: http://hdl.handle.net/2142/106158

Texas State University – San Marcos

10. Das, Sayantan. Method and Mechanism of Colloidal Assembly for Surface Patterning.

Degree: PhD, Chemistry and Biochemistry, 2015, Texas State University – San Marcos

URL: https://digital.library.txstate.edu/handle/10877/5909

► In the field of self-assembly of colloids, there are a number of unanswered questions; can creation of surface patterns be merely achieved by the design… (more)

Subjects/Keywords: Phase Segregation; Surface active agents; Surface chemistry

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APA (6^th Edition):

Das, S. (2015). Method and Mechanism of Colloidal Assembly for Surface Patterning. (Doctoral Dissertation). Texas State University – San Marcos. Retrieved from https://digital.library.txstate.edu/handle/10877/5909

Chicago Manual of Style (16^th Edition):

Das, Sayantan. “Method and Mechanism of Colloidal Assembly for Surface Patterning.” 2015. Doctoral Dissertation, Texas State University – San Marcos. Accessed January 24, 2021. https://digital.library.txstate.edu/handle/10877/5909.

MLA Handbook (7^th Edition):

Das, Sayantan. “Method and Mechanism of Colloidal Assembly for Surface Patterning.” 2015. Web. 24 Jan 2021.

Vancouver:

Das S. Method and Mechanism of Colloidal Assembly for Surface Patterning. [Internet] [Doctoral dissertation]. Texas State University – San Marcos; 2015. [cited 2021 Jan 24]. Available from: https://digital.library.txstate.edu/handle/10877/5909.

Council of Science Editors:

Das S. Method and Mechanism of Colloidal Assembly for Surface Patterning. [Doctoral Dissertation]. Texas State University – San Marcos; 2015. Available from: https://digital.library.txstate.edu/handle/10877/5909

Freie Universität Berlin

11. Poppenberg, Johannes. Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces.

Degree: 2013, Freie Universität Berlin

URL: http://dx.doi.org/10.17169/refubium-10605

► Summary Mechanically interlocked molecules such as rotaxanes and catenanes can respond with mechanical motion at the molecular level to external signals and are therefore considered… (more)

▼ Summary Mechanically interlocked molecules such as rotaxanes and catenanes can respond with mechanical motion at the molecular level to external signals and are therefore considered as prototypes for the synthesis of molecular machines. To convert the movement of individual nanoscopic rotaxanes into a macroscopic movement, i.e. to perform work, it is necessary to deposit these molecules in highly ordered arrays at interfaces. The aim of the present work is the deposition of tetralactam macrocycles on self-assembled monolayers as metal-coordinated multilayers. For this purpose, several self-assembled monolayers were prepared as template layers, characterized by XPS, NEXAFS spectroscopy, ToF-SIMS and AFM and studied with regard to their coordination properties. Each of the monolayers prepared thereby exhibits specific properties, so that depending on the requirements for the subsequent application, the suitable layer can be selected. Scheme 2 shows all the molecules used in the present study for the deposition of self-assembled monolayers. Scheme 2 The thiols used for the deposition of self-assembled monolayers. While the pyridin-terminated thiols were solely deposited as monomolecular compounds, the deposition of ordered monolayers from the terpyridine-terminated thiols demanded either the deposition of mixed monolayers (TDT/DT, TPT/PhT) or a subsequent functionalization via a click- reaction (TPA/AUD). Investigations about the mixed monolayer TDT/DT showed that the composition on the surface can directly be affected by the ratio of both thiols in the depositing solution. This is not possible for TPT/PhT.1 This demonstrates the influence of the spacer to the properties of the monolayer. Deposition of PDT on gold results in self-assembled monolayers, which can be reversibly protonated with sulfuric acid and deprotonated with ethanol. The ability to coordinate to palladium (II) ions directly depends on the degree of protonation. Furthermore it was possible to synthesize a diterpyridin functionalized tetralactam macrocycle and use it by means of a layer-by-layer deposition process for the preparation of multilayers with a height of about 50 nm. Angle-dependent NEXAFS spectroscopy was used to show that the macrocycles have a preferential orientation. It was possible to use both, iron (II) and nickel (II) ions, for linking the organic layers. The alternating deposition of iron (II) and nickel (II) ions in one multilayer assembly was also successful, so it was possible to integrate programmable sequences into the multilayer structure. XP-spectra revealed the metals to reside in different layers, and in fact no exchange reaction occurs between the layers. Thus, it could be shown that the developed procedure can be used for the controlled deposition of stable and defined supramolecular architectures on self-assembled monolayers. In order to show that the generated multilayers can be addressed by external stimuli, first a squaraine derivative was deposited as a guest molecule. By means of transmissions-UV /Vis-spectroscopy and… Advisors/Committee Members: [email protected] (contact), m (gender), Christoph Schalley (firstReferee), Rainer Haag (furtherReferee).

Subjects/Keywords: Supramolecular surface chemistry; rotaxanes; macrocycles; Gold surfaces; Multilayer; 500 Naturwissenschaften und Mathematik::540 Chemie

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APA (6^th Edition):

Poppenberg, J. (2013). Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-10605

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):

Poppenberg, Johannes. “Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces.” 2013. Thesis, Freie Universität Berlin. Accessed January 24, 2021. http://dx.doi.org/10.17169/refubium-10605.

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

MLA Handbook (7^th Edition):

Poppenberg, Johannes. “Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces.” 2013. Web. 24 Jan 2021.

Vancouver:

Poppenberg J. Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces. [Internet] [Thesis]. Freie Universität Berlin; 2013. [cited 2021 Jan 24]. Available from: http://dx.doi.org/10.17169/refubium-10605.

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

Council of Science Editors:

Poppenberg J. Layer-by-Layer Deposition of Tetralactam Macrocycles on Gold-surfaces. [Thesis]. Freie Universität Berlin; 2013. Available from: http://dx.doi.org/10.17169/refubium-10605

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

Freie Universität Berlin

12. Pippig, Falko. Synthesis and characterization of nano hydrogel films on polymer surfaces.

Degree: 2010, Freie Universität Berlin

URL: http://dx.doi.org/10.17169/refubium-12513

► This work describes an new approach to the production of nanoscale (thickness: 10 – 100 nm) polyethylene glycol networks on polymer substrates. The polymer networks… (more)

▼ This work describes an new approach to the production of nanoscale (thickness: 10 – 100 nm) polyethylene glycol networks on polymer substrates. The polymer networks are synthesized through addition- and condensation reactions of O,O’-Bis(2-aminoethyl)oligoethylene glycol with a trifunctional epoxide or acid chlorides. The thickness, mesh size, concentration and type of functional groups can be controlled with the reagents and the reaction conditions. In that way polymer networks with amine and carboxylic acid groups can be produced. By adding another reagent to the reaction mixture the opportunities to build up the network are increased. In this way concentration of carboxylic acid groups can be increased or biotin can be added. The networks form thin gels layers in water which can be interesting for biological applications. The above-mentioned gel layers can be used as a coating for microarrays, which are important for diagnostics. In common arrays the molecules are bonded to a flat surface. In that case many of proteins can lose their biological properties. In the presented gel layers proteins can be immobilized in an environment which is close to their natural one. For that application the mesh size of the networks need to be sufficiently large. Only in that way big molecules are able to enter into the gel layer. The mesh size of the networks is larger than 20 nm. Additionally, it was demonstrated that streptavidin is immobilized at a biotin moiety in a concentration which is 6 times higher than a densely packed monolayer of the protein on a flat (2D) surface. Due to the low concentration of the functional groups in pmol cm-2 range the probability for multiple reactions with a protein is low. The characterization of the networks is a complex topic. It was done with X-ray-photoelectronspectroscopy (XPS) combined with chemical derivatization. It is demonstrated that the distance between two branches in the network can be determined with XPS. Fluorescence spectroscopy was used to determine the concentration of the functional groups in the network. Altogether, this work tries to combine synthesis, analysis and technology. Advisors/Committee Members: m (gender), Prof. Dr. Haag (firstReferee), Prof. Dr. Lendlein (furtherReferee).

Subjects/Keywords: X-ray photoelectron spectroscopy; hydrogel layer; polyethylene; surface chemistry; 500 Naturwissenschaften und Mathematik::540 Chemie

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APA (6^th Edition):

Pippig, F. (2010). Synthesis and characterization of nano hydrogel films on polymer surfaces. (Thesis). Freie Universität Berlin. Retrieved from http://dx.doi.org/10.17169/refubium-12513

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):

Pippig, Falko. “Synthesis and characterization of nano hydrogel films on polymer surfaces.” 2010. Thesis, Freie Universität Berlin. Accessed January 24, 2021. http://dx.doi.org/10.17169/refubium-12513.

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

MLA Handbook (7^th Edition):

Pippig, Falko. “Synthesis and characterization of nano hydrogel films on polymer surfaces.” 2010. Web. 24 Jan 2021.

Vancouver:

Pippig F. Synthesis and characterization of nano hydrogel films on polymer surfaces. [Internet] [Thesis]. Freie Universität Berlin; 2010. [cited 2021 Jan 24]. Available from: http://dx.doi.org/10.17169/refubium-12513.

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

Council of Science Editors:

Pippig F. Synthesis and characterization of nano hydrogel films on polymer surfaces. [Thesis]. Freie Universität Berlin; 2010. Available from: http://dx.doi.org/10.17169/refubium-12513

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

University of Auckland

13. Withy, Benjamin Paul. The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats.

Degree: 2008, University of Auckland

URL: http://hdl.handle.net/2292/3382

► Thermal spray is a well established technology that is commonly used in the aerospace and automotive industries. This thesis reports on the effect that substrate… (more)

▼ Thermal spray is a well established technology that is commonly used in the aerospace and automotive industries. This thesis reports on the effect that substrate surface chemistry, morphology and temperature has on the morphology of PEEK single splats on aluminium substrates. PEEK single splats were deposited by HVAF and plasma spraying on aluminium substrates with 6 different pretreatments. Substrates were either sprayed at room temperature, or 323??C, and a subset of substrates was held at incremental temperatures up to 363??C. HVAF deposited splats on room temperature substrates showed sensitivity to surface chemistry, with increased circularity and area associated with low levels of hydroxide and chemisorbed water on the aluminium surface. Substrates held at 323??C were more sensitive to substrate morphology, where rough surfaces resulted in decreased circularity and area apparently independent of surface chemistry. Substrate temperature trials revealed a significant step in the results, equating to greater circularity, and lower splat area, perimeter and Feret diameter. This step occurred between 123??C and 163??C, the two points bracketing the glass transition temperature of PEEK (143??C). This result was due to the relaxation of splats deposited on surfaces above 143??C, whilst splats on cooler substrates quench through the glass transition and do not relax. PEEK splats deposited by plasma spray on room temperature and 323??C substrates showed sensitivity to the amount of hydroxide and chemisorbed water present on the aluminium substrates, with low levels resulting in more circular and larger area splats. Plasma splats did not show the same temperature effects as HVAF splats, thought to be due to the more molten state of plasma splats upon impact compared to the HVAF splats. The primary conclusions reached were that plasma sprayed polymers were sensitive to surface chemistry, and that as such the surface chemistry of a substrate should be considered when forming plasma spray polymer coatings. It was also concluded that the kinetic energy of particles in HVAF thermal spray contributed significantly to the thermal energy of a particle on impact, allowing for improved splat properties without overheating the particles in flight. Finally it was concluded that substrate temperature is far more important for HVAF thermal spray of polymers than plasma spray of polymers, but that it improves splat properties for both techniques. Advisors/Committee Members: Margaret Hyland, Bryony James.

Subjects/Keywords: Thermal Spray; Surface Chemistry

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APA (6^th Edition):

Withy, B. P. (2008). The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats. (Doctoral Dissertation). University of Auckland. Retrieved from http://hdl.handle.net/2292/3382

Chicago Manual of Style (16^th Edition):

Withy, Benjamin Paul. “The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats.” 2008. Doctoral Dissertation, University of Auckland. Accessed January 24, 2021. http://hdl.handle.net/2292/3382.

MLA Handbook (7^th Edition):

Withy, Benjamin Paul. “The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats.” 2008. Web. 24 Jan 2021.

Vancouver:

Withy BP. The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats. [Internet] [Doctoral dissertation]. University of Auckland; 2008. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2292/3382.

Council of Science Editors:

Withy BP. The Effect of Substrate Parameters on the Morphology of Thermally Sprayed PEEK Splats. [Doctoral Dissertation]. University of Auckland; 2008. Available from: http://hdl.handle.net/2292/3382

University of California – Riverside

14. Yang, Hyojik. Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities.

Degree: Chemistry, 2016, University of California – Riverside

URL: http://www.escholarship.org/uc/item/2qv796zz

► The development of effective assays to determine enzyme activity is fundamental to biochemical research and has broad industrial applications including high-throughput screening (HTS). In this… (more)

▼ The development of effective assays to determine enzyme activity is fundamental to biochemical research and has broad industrial applications including high-throughput screening (HTS). In this Thesis, we have focused our effort on the development of new enzymatic assays using novel surface chemistry that enables selective capture of analytes and label-free technologies for characterization and quantification. Both covalent and non-covalent capture methods for selective enrichment of target analytes have been employed in this research. The binding process between the target analytes and the substrate surface was monitored in real time with Surface Plasmon Resonance (SPR) spectroscopy, and further confirmed and quantified with Matrix-Assisted Laser Desorption/Ionization mass spectrometry (MALDI-MS).In the first part of this work, the non-covalent capture method was developed and employed to determine enzyme activities for two glyco-enzymes. First, α-glucosidase (α-GD) activity was studied using maltose as a substrate. A new carbohydrate probe has been synthesized and attached to a perfluorodecanethiol (PFDT)-covered surface via van der Waals interactions in a microarray format, followed by characterization by MALDI-MS. Using a ratiometric approach, we have determined the half maximal inhibitory concentration (IC50) values of inhibitors such as acarbose and epigallocatechin gallate on α-GD. In addition, N-acetylglucosamine-perfluorodecane probes have been synthesized and immobilized on PFDT-covered surface for β-1, 4-galactosyltransferase (β-GT). The design enables desalting and immobilization of carbohydrate-conjugated probes to be completed in one step. The simplicity of this approach is a high advantage for the quantification of enzymatic activity. In the second part of this work, we have developed a robust and facile method for the fabrication of functional biochips with gold thin films. Using surface modification by self-assembled monolayers (SAMs) of lipoic acid derivatives, we have performed enzymatic reactions using droplet deposition method. The functional surface is primarily characterized by Self-Assembled Monolayers Desorption/Ionization-Mass Spectrometry (SAMDI-MS). Lipoic amido (LA)-undecaethylene glycol (PEG11)-maleimide (MAL) has been used as a model ligand to determine the binding strength between the ligand and the surface with SPR spectroscopy. Measurement of the molar mass of ligands on the surface was performed using SAMDI-MS. The maleimide moiety in the ligands allowed facile immobilization of various molecules on the surface. In addition, lipoic amido (LA)-octaethylene glycol (PEG8)-2, 3, 5, 6-tetrafluorophenol (TFP) was characterized for surface modification of the ligands by SAMDI-MS. These labeled biomolecules are then used as substrates for measurement of enzyme activities by SAMDI-MS. From the results, we have shown that LA derivatives bind effectively onto gold surfaces, providing a simple platform for surface modification of various biomolecules and as substrates for MALDI-based enzymatic…

Subjects/Keywords: Chemistry; Enzyme; Mass Spectrometry; Surface

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APA (6^th Edition):

Yang, H. (2016). Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities. (Thesis). University of California – Riverside. Retrieved from http://www.escholarship.org/uc/item/2qv796zz

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):

Yang, Hyojik. “Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities.” 2016. Thesis, University of California – Riverside. Accessed January 24, 2021. http://www.escholarship.org/uc/item/2qv796zz.

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

MLA Handbook (7^th Edition):

Yang, Hyojik. “Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities.” 2016. Web. 24 Jan 2021.

Vancouver:

Yang H. Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities. [Internet] [Thesis]. University of California – Riverside; 2016. [cited 2021 Jan 24]. Available from: http://www.escholarship.org/uc/item/2qv796zz.

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

Council of Science Editors:

Yang H. Surface-Assisted Affinity Purification Mass Spectrometry (SAAP-MS) for Determination of Enzyme Activities. [Thesis]. University of California – Riverside; 2016. Available from: http://www.escholarship.org/uc/item/2qv796zz

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

University of Alberta

15. Bell, Wayne Ronald Victor. Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada.

Degree: MS, Department of Biological Sciences, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/kk91fm93s

► The Western Boreal Forest exhibits complex hydrogeology juxtaposed with rapid resource development. Predicting surface water chemistry to assess the influence of landuse and climate change… (more)

Subjects/Keywords: chemistry; boreal; surface water

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APA (6^th Edition):

Bell, W. R. V. (2010). Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/kk91fm93s

Chicago Manual of Style (16^th Edition):

Bell, Wayne Ronald Victor. “Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada.” 2010. Masters Thesis, University of Alberta. Accessed January 24, 2021. https://era.library.ualberta.ca/files/kk91fm93s.

MLA Handbook (7^th Edition):

Bell, Wayne Ronald Victor. “Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada.” 2010. Web. 24 Jan 2021.

Vancouver:

Bell WRV. Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2021 Jan 24]. Available from: https://era.library.ualberta.ca/files/kk91fm93s.

Council of Science Editors:

Bell WRV. Regional and local controls of surface water chemistry in the Boreal Plain and Shield transition of Canada. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/kk91fm93s

Oregon State University

16. Freitas, Shawn Robert. In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies.

Degree: PhD, Wood Science, 2015, Oregon State University

URL: http://hdl.handle.net/1957/58217

► As the forest industry moves toward the use of younger trees and production of an increasing number of composite products improving durability has gained importance.… (more)

▼ As the forest industry moves toward the use of younger trees and production of an increasing number of composite products improving durability has gained importance. Coatings are one of the most widely used methods for improving wood durability because they improve resistance to water penetration, and subsequent shrinking and swelling, which improves performance. From a wood panel manufacturing perspective, the hot-press may offer an opportunity to use in-situ wood chemistry reactions to chemically modify just the wood surface, decreasing the level of hydroxyl species in the weak boundary layer, improving moisture resistance, and reducing the need to apply a coating. This research focused on establishing whether or not wood surface chemistry and performance could be effected by hot press platen metallurgy under hot pressing conditions and if so, to determine if these effects were due to thermo-mechanical or chemical changes. The significance of chemical changes and their characterization was investigated. In addition, this research also sought to contribute to fundamental knowledge in the area of metal mechanochemical modifications of wood and other renewable materials under normal wood composite processing conditions. Results confirmed at a high level that different press surfaces do indeed support statistically significant differences in wood surface chemistry. FTIR -ATR analysis showed consistent differences in the surface chemistry between different platen metal types at changing process conditions. DART-TOF-MS analysis showed that statistically significant concentrations of platen specific wood surface ion species could be identified. FTIR microscopy diffuse reflection analysis supported that organic residues present on a platen surface after pressing are at least somewhat specific to the platen metallurgy. Some statistically significant relationships between water permeance and diffusion performance and hot press platen metallurgy were also established. RSM models in combination with ANOVA, Tukey, and Correlation analysis suggest that thermal and mechanical effects are likely more important than chemical catalytic effects in terms of moisture resistance, but that chemical effects do play a role. Improvements in water resistance imparted by different pressing surfaces were notable, but not as significant as conventional paint coatings. A platen-wood surface relationship appears to exist and if platen metal selection can be used to slow or advance reactions that lead to more rapid or higher production of desired chemical traits, this area of study may possibly have important implications for a variety of wood product applications. Advisors/Committee Members: Kamke, Frederick (advisor), Simonsen, John (committee member).

Subjects/Keywords: Wood surface chemistry; Wood – Preservation

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APA (6^th Edition):

Freitas, S. R. (2015). In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/58217

Chicago Manual of Style (16^th Edition):

Freitas, Shawn Robert. “In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies.” 2015. Doctoral Dissertation, Oregon State University. Accessed January 24, 2021. http://hdl.handle.net/1957/58217.

MLA Handbook (7^th Edition):

Freitas, Shawn Robert. “In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies.” 2015. Web. 24 Jan 2021.

Vancouver:

Freitas SR. In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies. [Internet] [Doctoral dissertation]. Oregon State University; 2015. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1957/58217.

Council of Science Editors:

Freitas SR. In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies. [Doctoral Dissertation]. Oregon State University; 2015. Available from: http://hdl.handle.net/1957/58217

Vanderbilt University

17. Turo, Michael Joseph. Crystal-Bound Ligands in Nanocrystal Synthesis.

Degree: PhD, Chemistry, 2016, Vanderbilt University

URL: http://hdl.handle.net/1803/15296

► Semiconductor nanocrystals are a desirable class of nanomaterials for electronic, energy conversion, and biomedical applications. The work presented in this thesis aids in the understanding… (more)

Subjects/Keywords: Nanocrystals; Surface Chemistry; Semiconductors; Synthesis

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APA (6^th Edition):

Turo, M. J. (2016). Crystal-Bound Ligands in Nanocrystal Synthesis. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/15296

Chicago Manual of Style (16^th Edition):

Turo, Michael Joseph. “Crystal-Bound Ligands in Nanocrystal Synthesis.” 2016. Doctoral Dissertation, Vanderbilt University. Accessed January 24, 2021. http://hdl.handle.net/1803/15296.

MLA Handbook (7^th Edition):

Turo, Michael Joseph. “Crystal-Bound Ligands in Nanocrystal Synthesis.” 2016. Web. 24 Jan 2021.

Vancouver:

Turo MJ. Crystal-Bound Ligands in Nanocrystal Synthesis. [Internet] [Doctoral dissertation]. Vanderbilt University; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1803/15296.

Council of Science Editors:

Turo MJ. Crystal-Bound Ligands in Nanocrystal Synthesis. [Doctoral Dissertation]. Vanderbilt University; 2016. Available from: http://hdl.handle.net/1803/15296

University of Oxford

18. Wang, Shuqiu. Monolayer oxide films.

Degree: PhD, 2019, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:58a212c5-47bc-4caf-8e69-d35c5b4be6c4 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.799946

► This thesis focuses on the monolayer films and nanostructures of Ti oxide and Nb oxide supported on the gold substrate. Particular emphasis have been placed… (more)

▼ This thesis focuses on the monolayer films and nanostructures of Ti oxide and Nb oxide supported on the gold substrate. Particular emphasis have been placed on learning about the point and extended defects that occur in the films. The thesis begins with a significant improvement in the resolving power of the STM that can be achieved through automated distortion correction and multi-frame averaging. The broad utility of this approach is demonstrated with three examples: the Si(111)-(7 × 7) reconstruction, the Ti₂O₃ (2 × 2) film on Au(111) and the (4 × 4) reconstructed SrTiO₃(111) surface. Ti₂O₃ monolayer films with a honeycomb lattice often contain local defects in which the hexagonal elements are replaced by four, five, seven, and eight-membered rings. The structure and energetics of Stone-Wales and divacancy defects in the Ti₂O₃ monolayers are investigated using scanning tunneling microscopy (STM) and density functional theory (DFT). The substrate significantly influences the energetics, and hence favors vacancy-type defects, in compressively strained 2D materials. A variety of non-stoichiometric defects are observed and they can be generated by applying a voltage pulse using the STM tip. An epitaxial (2 × 2) honeycomb Nb₂O₃ monolayer is grown on an Au(111) surface. The films form a well-ordered honeycomb lattice and adopt a (2 × 2) periodicity with respect to the Au(111) substrate. The Nb atoms are located in Au(111) three-fold hollow sites and the O atoms are located in on-top positions. The existence of a strong interfacial interaction is characterized by a large electron transfer to the Au substrate, an increase of the Nb oxidation state, and substantial film rumpling. High resolution STM images are able to discriminate between Nb atoms adsorbed in fcc or hcp hollow sites on the surface. A variety of monolayer niobium oxide (NbO_x) nanostructures are grown on Au(111) surfaces. The NbO_x nanostructures can be classified as atomic clusters consisting of only a few atoms, or larger triangular islands of various sizes. The atomic clusters have rectangular, pentagonal and hexagonal shapes, and they can merge to form larger clusters. The atomic clusters have stoichiometries ranging from NbO to NbO_1.5. The triangular islands have a close-packed structure and locally adopt the (1 × 1) periodicity of the Au(111) substrate. Triangular islands of different sizes have similar atomic structures and stoichiometries close to NbO. The nanostructures can be converted into (2 × 2) Nb₂O₃ honeycomb monolayer films when annealed for prolonged periods in 10^-6 Pa of oxygen. The structures and properties of defects in monolayer films of Ti₂O₃ and Nb₂O₃ on Au (111) are compared. For both systems, a rich variety of defects including island edges and domain boundaries are observed. Characteristic domain boundaries consist of 4, 5, 7…

Subjects/Keywords: Materials science; Surface chemistry

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APA (6^th Edition):

Wang, S. (2019). Monolayer oxide films. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:58a212c5-47bc-4caf-8e69-d35c5b4be6c4 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.799946

Chicago Manual of Style (16^th Edition):

Wang, Shuqiu. “Monolayer oxide films.” 2019. Doctoral Dissertation, University of Oxford. Accessed January 24, 2021. http://ora.ox.ac.uk/objects/uuid:58a212c5-47bc-4caf-8e69-d35c5b4be6c4 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.799946.

MLA Handbook (7^th Edition):

Wang, Shuqiu. “Monolayer oxide films.” 2019. Web. 24 Jan 2021.

Vancouver:

Wang S. Monolayer oxide films. [Internet] [Doctoral dissertation]. University of Oxford; 2019. [cited 2021 Jan 24]. Available from: http://ora.ox.ac.uk/objects/uuid:58a212c5-47bc-4caf-8e69-d35c5b4be6c4 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.799946.

Council of Science Editors:

Wang S. Monolayer oxide films. [Doctoral Dissertation]. University of Oxford; 2019. Available from: http://ora.ox.ac.uk/objects/uuid:58a212c5-47bc-4caf-8e69-d35c5b4be6c4 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.799946

19. Farkhondeh Borazjani, Hanieh. Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects.

Degree: 2019, University of Waterloo

URL: http://hdl.handle.net/10012/15146

► The interfacial interactions and film growth mechanisms of sulfur-containing amino acids on Si(111)-√3×√3-Ag are investigated by using x-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy… (more)

▼ The interfacial interactions and film growth mechanisms of sulfur-containing amino acids on Si(111)-√3×√3-Ag are investigated by using x-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM) at room temperature and at elevated temperature under ultrahigh vacuum condition. The complementary density functional theory (DFT) calculations with dispersion correction are used to provide precise modeling of the equilibrium adsorption configurations of biomolecules. Cysteine is found to chemisorb initially at surface defects where its island growth fronts further propagate onto terrace regions exhibiting coral-reef-like nanostructures. The lower-step edges and the antiphase boundaries are found to be the preferred adsorption sites followed by upper-step edges and terrace sites. Chemisorption of interfacial cysteine monolayer occurs through S–H cleavage and S–Ag linkage. The zwitterionic hydrogen bonding governs the intermolecular interactions in the interfacial layer, which further grows to zwitterionic multilayer. Our DFT calculations support the experimental results for chemisorption of single molecules to multimers through S–Ag covalent bonding and intermolecular zwitterionic hydrogen bonding. In addition, Ag bridge sites are found to be the most favourable adsorption sites on the surface terraces. At elevated temperatures, cysteine adspecies are found to transform the highly ordered single-atom-thick Si(111)-√3×√3-Ag overlayer into Ag agglomerates of nanometer sizes. This phenomenon offers an interesting approach to converting monoatomic silver silicide layers to silver nanoclusters and quantum dots for chemical sensing and catalysis applications. Methionine, on the other hand, does not chemisorb on Si(111)-√3×√3-Ag due to the termination of its sulfur atom by a methyl group in its methylthio methylene side chain. A minority of methionine adspecies are found to chemisorb through a dehydrogenated amino group most likely at defect sites, step edges and antiphase boundaries. Self-assembled one-dimensional molecular wires are observed at room temperature and at lower temperatures in our variable-temperature STM study, while the chemical state of these molecular wires is found to be zwitterionic by XPS. Our large-scale DFT calculations further support the zwitterionic dimer row structures of the molecular wires. To demonstrate the molecular size effect, the adsorption mechanism of glycine on Si(111)-√3×√3-Ag is also studied. All three amino acids appear to induce metallic Ag 3d features at elevated temperature, indicating the formation of metallic agglomerates. The Si(111)-√3×√3-Ag surface offers a unique platform for developing not only self-assembled molecular nanostructures but also metal nanoclusters and agglomerates for potential applications in catalysis. The Si(111)-√3×√3-Ag surface contains a number of defects, notably step edges and antiphase boundaries, that could significantly affect the adsorption and other surface properties. Detailed understanding of the relations between their structural…

Subjects/Keywords: experimental and computational surface chemistry

10 more images…

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APA (6^th Edition):

Farkhondeh Borazjani, H. (2019). Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/15146

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):

Farkhondeh Borazjani, Hanieh. “Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects.” 2019. Thesis, University of Waterloo. Accessed January 24, 2021. http://hdl.handle.net/10012/15146.

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

MLA Handbook (7^th Edition):

Farkhondeh Borazjani, Hanieh. “Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects.” 2019. Web. 24 Jan 2021.

Vancouver:

Farkhondeh Borazjani H. Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects. [Internet] [Thesis]. University of Waterloo; 2019. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10012/15146.

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

Council of Science Editors:

Farkhondeh Borazjani H. Site-specific Chemistry of Sulfur-containing Amino Acids on Si(111)-√3×√3-Ag: Bioorganic Nanostructured Film Growth and Adsorbate-induced Metal Cluster Formation Governed by Surface Defects. [Thesis]. University of Waterloo; 2019. Available from: http://hdl.handle.net/10012/15146

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

Washington State University

20. [No author]. Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study .

Degree: 2016, Washington State University

URL: http://hdl.handle.net/2376/12144

► A detailed investigation on the nature of stability of surface structures of octaethylporphyrins (OEP) on graphite and Au(111) has been performed using scanning tunneling microscopy… (more)

▼ A detailed investigation on the nature of stability of surface structures of octaethylporphyrins (OEP) on graphite and Au(111) has been performed using scanning tunneling microscopy (STM). In-situ temperature dependent studies on the monolayer of these porphyrins show that the surface structure is stable up to 70 °C and that the molecules do not exchange between the surface and solution. Hence, at temperatures lower than 70 °C the monolayer is controlled by kinetics and the rates of desorption are extremely slow. In order to extract kinetic parameters ex-situ annealing was performed at higher temperatures. Substrate effects are studied by measuring and comparing the rates of desorption of CoOEP from 1-phenyloctane/graphite and 1-phenyloctane/Au(111) interfaces. Significant desorption from Au(111) starts at 135 °C whereas that from graphite starts at 90 °C and the rate of desorption from graphite is 2 orders of magnitude greater than from Au(111). In a different study to understand the effects of the central metal of the porphyrin on the adsorption strength, it was shown that the metal-free and metallated OEP adsorb on graphite with similar energy. This shows that the adsorption strength strongly depends on the interaction between the porphyrin core and the graphite surface and that the interaction between central metal and graphite is minimal. In any case, the adsorption energy for OEP on to graphite and Au(111) ranges from 100 – 130 kJ/mol. Substrate effects on oxygen binding to CoOEP adsorbed on graphite and on Au(111) were also studied using STM. At temperatures close to room temperature oxygen binds to CoOEP on graphite where as it does not bind on Au(111) even at -25 °C. It was shown that the binding of oxygen to CoOEP-graphite is a dynamic equilibrium process. Temperature and pressure dependent studies were performed to extract thermodynamic quantities such as ΔG, ΔH, and ΔS values for the oxygenation process. Advisors/Committee Members: Hipps, Kerry W (advisor).

Subjects/Keywords: Chemistry; Kinetics; STM; Surface; Thermodynamics

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APA (6^th Edition):

author], [. (2016). Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study . (Thesis). Washington State University. Retrieved from http://hdl.handle.net/2376/12144

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):

author], [No. “Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study .” 2016. Thesis, Washington State University. Accessed January 24, 2021. http://hdl.handle.net/2376/12144.

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

MLA Handbook (7^th Edition):

author], [No. “Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study .” 2016. Web. 24 Jan 2021.

Vancouver:

author] [. Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study . [Internet] [Thesis]. Washington State University; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2376/12144.

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

Council of Science Editors:

author] [. Kinetics and Thermodynamics at the Solution/Solid Interface: A Scanning Tunneling Microscopy Study . [Thesis]. Washington State University; 2016. Available from: http://hdl.handle.net/2376/12144

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

Oregon State University

21. Ri, Chang-seop. Surface structural studies of the titanium/chlorine system.

Degree: PhD, Chemistry, 1990, Oregon State University

URL: http://hdl.handle.net/1957/38082

Subjects/Keywords: Surface chemistry

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APA (6^th Edition):

Ri, C. (1990). Surface structural studies of the titanium/chlorine system. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/38082

Chicago Manual of Style (16^th Edition):

Ri, Chang-seop. “Surface structural studies of the titanium/chlorine system.” 1990. Doctoral Dissertation, Oregon State University. Accessed January 24, 2021. http://hdl.handle.net/1957/38082.

MLA Handbook (7^th Edition):

Ri, Chang-seop. “Surface structural studies of the titanium/chlorine system.” 1990. Web. 24 Jan 2021.

Vancouver:

Ri C. Surface structural studies of the titanium/chlorine system. [Internet] [Doctoral dissertation]. Oregon State University; 1990. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1957/38082.

Council of Science Editors:

Ri C. Surface structural studies of the titanium/chlorine system. [Doctoral Dissertation]. Oregon State University; 1990. Available from: http://hdl.handle.net/1957/38082

Oregon State University

22. Mokler, Scott M. GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds.

Degree: PhD, Chemistry, 1990, Oregon State University

URL: http://hdl.handle.net/1957/38920

► An important aspect in device technology is the processing of GaAs to produce highly-resolved etch patterns on the substrate. This is done typically on the… (more)

▼ An important aspect in device technology is the processing of GaAs to produce highly-resolved etch patterns on the substrate. This is done typically on the GaAs(100) surface. Recently, a number of methods, all using chlorinated vapor reactants, have been applied to fabrication of GaAs devices. In spite of these technological advances, the understanding of the chemistry of the surface reaction on a fundamental level is still rudimentary. Practical etching involves a combination of chemical phenomenon and physical sputtering, in the presence of a mixture of chlorine containing gases to achieve material removal. The complexity of these processes precludes them as experiments for understanding the mechanisms responsible for etching. A simpler approach, used here, involves thermal etching and electron-induced desorption processes to study the material removed after a GaAs(100) surface is exposed to molecular chlorine. Another important aspect of device technology involves the atomic level interactions between metals and semiconductors as they are brought into contact. In this vein it has been found that sulfur containing compounds tend to lower the Schottky barrier height at the GaAs(100) surface, and thereby produce ohmic contacts at the metal-semiconductor interface. As with the GaAs/chlorine system, information on the GaAs/sulfur system is by no means conclusive. Molecular sulfur, hydrogen sulfide, as well as alkaline sulfides have all been used to deposit sulfur on the surface. This study concentrates on molecular sulfur and H₂S and the very different behavior between the two upon adsorption and subsequent desorption from the GaAs(100) surface. These experiments on clean, chlorine and sulfur covered surfaces were all performed on well characterized GaAs(100) substrates either cleaned in situ by ion bombardment and annealing (IBA) techniques or grown in situ by molecular beam epitaxy (MBE). The information was gathered using standard surface science techniques under ultra-high vacuum (UHV) conditions. These techniques allow investigation of structure, composition and reaction present at the surface of materials. Advisors/Committee Members: Watson, Philip R. (advisor).

Subjects/Keywords: Surface chemistry

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APA (6^th Edition):

Mokler, S. M. (1990). GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/38920

Chicago Manual of Style (16^th Edition):

Mokler, Scott M. “GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds.” 1990. Doctoral Dissertation, Oregon State University. Accessed January 24, 2021. http://hdl.handle.net/1957/38920.

MLA Handbook (7^th Edition):

Mokler, Scott M. “GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds.” 1990. Web. 24 Jan 2021.

Vancouver:

Mokler SM. GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds. [Internet] [Doctoral dissertation]. Oregon State University; 1990. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1957/38920.

Council of Science Editors:

Mokler SM. GaAs(100) surface chemistry : interactions with molecular chlorine and sulfur compounds. [Doctoral Dissertation]. Oregon State University; 1990. Available from: http://hdl.handle.net/1957/38920

University of Manchester

23. Farren, Lee Andrew. Organic Finishes on Coil Coated Steels.

Degree: 2018, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314242

► The replacement of hexavalent chromium corrosion inhibitors from paints is an important venture due to the effects of those compounds on the environment and detrimental… (more)

▼ The replacement of hexavalent chromium corrosion inhibitors from paints is an important venture due to the effects of those compounds on the environment and detrimental health effects. The procedure of replacement is made more urgent by imminent changes on the legality of using these compounds within the European Union. Whilst replacements have been devised, in many cases these replacements are less versatile, less effective and their mechanisms less understood. In aid of this, a methodology was produced that allows some understanding of the potential of an inhibitor on complex metallic systems, without the time restraints involved with more traditional methods, such as atmospheric testing. This methodology, simultaneous electrochemical impedance, utilises multiple zero resistance ammeters attached to a single overriding potentiostat to gain electrochemical information on multiple metals whilst maintaining the mixed potential of the coupled system, and was verified using previously defined inhibitor systems. Three commercial polyphosphate inhibitors were analysed using this technique and were shown to have distinct behaviours on a simple steel/zinc couple. Strontium aluminium polyphosphate exhibited a delayed inhibition response which was absent when the distance between working electrodes was decreased, which was theorized to be due to the mechanism of action requiring the presence of anodically produced zinc ions. This was tested and confirmed through an x-ray photoelectron spectroscopy study which externally introduced zinc ions and showed an increase in the phosphorus content seen on the steel surface. The concentration of externally added zinc required for this effect was tested and determined to be approximately between 1 and 2 mM. Subsequently, alternative cationic species were added to determine whether the efficacy of the phosphorus surface deposition could be potentially improved through other in-paint additives. Calcium was shown to be effective, with magnesium showing some effect on strontium aluminium polyphosphate. Aluminium cations appeared to have little effect. Additionally, the use of the simultaneous electrochemical impedance methodology was shown to have some use in analysing even more complex materials with a zinc/steel/aluminium model. The use of pure aluminium may cause some issues in analysis due to the protective oxide layer. Magnesium aluminium polyphosphate results suggest that it may initially interfere with this oxide layer production. Advisors/Committee Members: ZHOU, XIAORONG X, Lyon, Stuart, Zhou, Xiaorong.

Subjects/Keywords: Electrochemistry; Corrosion; Inhibition; Surface Chemistry

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APA (6^th Edition):

Farren, L. A. (2018). Organic Finishes on Coil Coated Steels. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314242

Chicago Manual of Style (16^th Edition):

Farren, Lee Andrew. “Organic Finishes on Coil Coated Steels.” 2018. Doctoral Dissertation, University of Manchester. Accessed January 24, 2021. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314242.

MLA Handbook (7^th Edition):

Farren, Lee Andrew. “Organic Finishes on Coil Coated Steels.” 2018. Web. 24 Jan 2021.

Vancouver:

Farren LA. Organic Finishes on Coil Coated Steels. [Internet] [Doctoral dissertation]. University of Manchester; 2018. [cited 2021 Jan 24]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314242.

Council of Science Editors:

Farren LA. Organic Finishes on Coil Coated Steels. [Doctoral Dissertation]. University of Manchester; 2018. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:314242

University of Adelaide

24. Mansfield, William Walladge. Studies in pure and applied surface physics and chemistry.

Degree: 1972, University of Adelaide

URL: http://hdl.handle.net/2440/38531

Subjects/Keywords: Surface chemistry.

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APA (6^th Edition):

Mansfield, W. W. (1972). Studies in pure and applied surface physics and chemistry. (Thesis). University of Adelaide. Retrieved from http://hdl.handle.net/2440/38531

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):

Mansfield, William Walladge. “Studies in pure and applied surface physics and chemistry.” 1972. Thesis, University of Adelaide. Accessed January 24, 2021. http://hdl.handle.net/2440/38531.

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

MLA Handbook (7^th Edition):

Mansfield, William Walladge. “Studies in pure and applied surface physics and chemistry.” 1972. Web. 24 Jan 2021.

Vancouver:

Mansfield WW. Studies in pure and applied surface physics and chemistry. [Internet] [Thesis]. University of Adelaide; 1972. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2440/38531.

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

Council of Science Editors:

Mansfield WW. Studies in pure and applied surface physics and chemistry. [Thesis]. University of Adelaide; 1972. Available from: http://hdl.handle.net/2440/38531

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

University of Victoria

25. Furman, Scott Anthony. Surface chemistry of iodine on platinum (111).

Degree: Department of Chemistry, 2017, University of Victoria

URL: https://dspace.library.uvic.ca//handle/1828/8556

► The adsorption of iodine on a platinum(111) single-crystal surface has been investigated using LEED, Auger spectroscopy, and work function measurements. The phase transformations and work… (more)

▼ The adsorption of iodine on a platinum(111) single-crystal surface has been investigated using LEED, Auger spectroscopy, and work function measurements. The phase transformations and work function changes have also been measured during desorption. Mass spectroscopy shows that above 300 K the main desorption product is atomic iodine with a small amount of molecular iodine detected as well. The desorption kinetics at these temperatures were studied by different techniques to extract the kinetic parameters and the orders of the desorption reactions. There are two main desorption features, one displaying zero-order desorption kinetics typical of a phase transition and the other displaying first-order kinetics with a coverage-dependent activation energy. The work function changes during adsorption and desorption were shown to be a function of coverage rather than having a site dependence. The adsorption of iodine at temperatures below 200 K was also studied. Multilayers of molecular iodine are formed that desorb with essentially zeroth order kinetics. Two multilayer desorptions were observed with thermal desorption spectroscopy. One of the multilayer desorptions had a significant work function change associated with it. The work function changes were modelled by calculating the hybridization dipole moment using extended-Hückel theory with Bloch wavefunctions. The calculations are sensitive to the atomic position of the adsorbate and require further refinement. Due to the protective nature of the iodine layer and its high polarizability, the iodine layers were used to study the ambient pressure adsorption of fluorinated carbosilane dendrimers. These dendrimers are stable in vacuum but do not form an ordered structure at ambient temperature. Heating the adsorbed dendrimer in vacuum to 1100 K produced a new ordered structure on the platinum surface. This structure was shown not to be an intact dendrimer molecule as two different dendrimers with similar structural moieties produced the same (√19x√19)R23.4° LEED pattern. The ordered structure was studied by Auger spectroscopy to determine the carbon coverage. This structure is proposed to be islands of a coincidental lattice of graphite. Advisors/Committee Members: Harrington, David A. (supervisor).

Subjects/Keywords: Surface chemistry; Iodine; Platinum

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APA (6^th Edition):

Furman, S. A. (2017). Surface chemistry of iodine on platinum (111). (Thesis). University of Victoria. Retrieved from https://dspace.library.uvic.ca//handle/1828/8556

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):

Furman, Scott Anthony. “Surface chemistry of iodine on platinum (111).” 2017. Thesis, University of Victoria. Accessed January 24, 2021. https://dspace.library.uvic.ca//handle/1828/8556.

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

MLA Handbook (7^th Edition):

Furman, Scott Anthony. “Surface chemistry of iodine on platinum (111).” 2017. Web. 24 Jan 2021.

Vancouver:

Furman SA. Surface chemistry of iodine on platinum (111). [Internet] [Thesis]. University of Victoria; 2017. [cited 2021 Jan 24]. Available from: https://dspace.library.uvic.ca//handle/1828/8556.

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

Council of Science Editors:

Furman SA. Surface chemistry of iodine on platinum (111). [Thesis]. University of Victoria; 2017. Available from: https://dspace.library.uvic.ca//handle/1828/8556

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

University of Illinois – Urbana-Champaign

26. Li, Ji. Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating.

Degree: MS, Chemistry, 2016, University of Illinois – Urbana-Champaign

URL: http://hdl.handle.net/2142/90852

► Gold nanorods (GNRs) have been investigated due to their unique surface plasmon resonances (SPR) that are tunable in wavelength according to nanoparticle shape. The collective… (more)

▼ Gold nanorods (GNRs) have been investigated due to their unique surface plasmon resonances (SPR) that are tunable in wavelength according to nanoparticle shape. The collective oscillation of the electrons in the GNRs excited by incoming light leads to enhanced electromagnetic fields near the gold surface, and thus can enhance the photophysical properties of nearby molecules. It has been demonstrated that enhancement of optical properties such as fluorescence and Raman scattering are distance-dependent from the metal surface, which makes the control of distance between the optical probe and gold surface of crucial importance. Meanwhile, researchers have also demonstrated that the electromagnetic fields are anisotropic, with higher fields located at the end of the GNRs upon excitation into the long-axis SPR mode. Thus, controlling the position of molecules on GNR surfaces is a major challenge in the field. The first aim of this thesis is to build up dynamic surface coatings on GNRs that change their thickness and reversibly responsible to specific outside stimuli. Poly (N-isopropylacrylamide) (PNIPAM), with lower critical solution temperature around 32°C in water, was chosen as the thermal responsive coating on GNRs. The dynamic surface on GNRs could be achieved by a simple graft-to functionalization step. Plasmon enhanced fluorescence and surface enhanced Raman were both investigated to report on the dynamic distance change, and we found reversible enhancement of the Raman signals of attached bipyridine ethylene (BPE) molecules in solution. We also investigated polymer graft-from the GNR surface in situ so that the grafting density and polymer composition can be fine-tuned for further application. The second part of this thesis focuses on the heterogeneous silica coating of GNRs. A robust method has been developed for synthesis of side-specific silica coating and end-specific silica coating on GNRs with average rod diameter of around 15. The mechanism of the heterogeneous synthesis is investigated and GNRs with different aspect ratios was tested to illuminate the growth mechanism. Advisors/Committee Members: Murphy, Catherine J. (advisor).

Subjects/Keywords: Gold nanorods; surface chemistry

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APA (6^th Edition):

Li, J. (2016). Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating. (Thesis). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/90852

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):

Li, Ji. “Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating.” 2016. Thesis, University of Illinois – Urbana-Champaign. Accessed January 24, 2021. http://hdl.handle.net/2142/90852.

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

MLA Handbook (7^th Edition):

Li, Ji. “Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating.” 2016. Web. 24 Jan 2021.

Vancouver:

Li J. Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating. [Internet] [Thesis]. University of Illinois – Urbana-Champaign; 2016. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/2142/90852.

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

Council of Science Editors:

Li J. Gold nanorod surface functionalization: construction of dynamic surfaces and heterogeneous silica coating. [Thesis]. University of Illinois – Urbana-Champaign; 2016. Available from: http://hdl.handle.net/2142/90852

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

University of Melbourne

27. Cho, Kwun Lun. Development of superhydrophobic coatings.

Degree: 2011, University of Melbourne

URL: http://hdl.handle.net/11343/37073

► Ultrarough surfaces with variable architecture were synthesised and examined using a combination of atomic force microscopy, synchrotron small angle X-ray scattering and contact angle goniometry.… (more)

▼ Ultrarough surfaces with variable architecture were synthesised and examined using a combination of atomic force microscopy, synchrotron small angle X-ray scattering and contact angle goniometry. Using silica nanoparticle sol-gel technology, hierarchical superhydrophobic surfaces with water contact angles > 150° and hysteresis < 10° were fabricated. The addition and subsequent removal of 400 nm latex particles facilitated in carefully controlled, micro-pore formation, resulting in, amongst other things, a transparent superhydrophobic thin film. Varying nanoparticle size from 7 - 40 nm within the coating, pseudo-fractal dimension measured using SAXS (Small Angle X-ray Scattering) was shown to be critical in optimising superhydrophobicity. Combined with characterisation using Mie light scattering models, surfaces with RMS roughness < 200 nm and fractal dimension > 2.6 was found to exhibit both superhydrophobicity and optical transparency. The randomly aggregated sol-gel coating presenting an ideal platform to study the wetting of hierarchical rough surfaces similar to those in nature. Using in-situ SAXS measurements, combined with contact angle goniometry, the liquid/solid interface of a superhydrophobic surface at various stages of wetting was directly probed. For the first time, an intermediate wetting state whereby a surface is wetted at the macroscale but unwetted at the nanoscale, was observed in situ. The behaviour of superhydrophobic surfaces in practical applications, icing and marine biofouling, were examined. Superhydrophobic surfaces, due to its de-wetting properties, drastically reduced the adhesion strength of ice formed from liquid water. The coating further acted as an heat insulator, inhibiting frost formation from cold humid air. In marine anti-fouling applications, hierarchical superhydrophobic surfaces show considerable promise in resisting the initial attachment of marine organisms. However, field biofouling experiments suggest that micro-roughness and surface chemistry are dominant factors in antifouling.

Subjects/Keywords: physical chemistry; surface science; coating

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

APA (6^th Edition):

Cho, K. L. (2011). Development of superhydrophobic coatings. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/37073

Chicago Manual of Style (16^th Edition):

Cho, Kwun Lun. “Development of superhydrophobic coatings.” 2011. Doctoral Dissertation, University of Melbourne. Accessed January 24, 2021. http://hdl.handle.net/11343/37073.

MLA Handbook (7^th Edition):

Cho, Kwun Lun. “Development of superhydrophobic coatings.” 2011. Web. 24 Jan 2021.

Vancouver:

Cho KL. Development of superhydrophobic coatings. [Internet] [Doctoral dissertation]. University of Melbourne; 2011. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/11343/37073.

Council of Science Editors:

Cho KL. Development of superhydrophobic coatings. [Doctoral Dissertation]. University of Melbourne; 2011. Available from: http://hdl.handle.net/11343/37073

Tartu University

28. Metsik, Jörgen. Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications .

Degree: 2018, Tartu University

URL: http://hdl.handle.net/10062/61225

► Juhtivad polümeerid on sellised orgaanilised polümeerid, mis juhivad elektrit. See põnev materjalide klass on juba 20. sajandi lõpust pälvinud teadusmaailma suurt tähelepanu, sest võib osutuda… (more)

▼ Juhtivad polümeerid on sellised orgaanilised polümeerid, mis juhivad elektrit. See põnev materjalide klass on juba 20. sajandi lõpust pälvinud teadusmaailma suurt tähelepanu, sest võib osutuda kasulikuks paljudes erinevates rakendustes, alates sensoritest ja lõpetades päikesepatareidega. Näiteks on paljudes seadmetes vaja kasutada läbipaistvaid elektroode, mille materjaliks on tänapäeval harilikult indiumtinaoksiidi (ITO) kiled. Aga ITO kiled on kallid ja nendele oleks hea odavam asendus leida. Just siin võib juhtiv polümeer kasuks tulla. Erinevalt ITOst on juhtivad polümeerid ka hea painduvusega, mis võimaldaks valmistada painduvaid elektroonikaseadmeid. Polü(3,4-etüleendioksütiofeen) (PEDOT) on üks juhtiv polümeer, mis võiks läbipaistvaks elektroodimaterjaliks sobida. PEDOT on üsna kõrge juhtivuse, hea läbipaistvuse ning juhtivate omaduste küllaltki suure stabiilsusega. Paraku ei ole ükski neist omadustest siiski veel päris ideaalne, mistõttu tuleb otsida lahendusi nende omaduste parandamiseks. Antud doktoritöös uuriti kahte erinevat PEDOTi õhukeste kilede valmistamise meetodit. Ühe meetodi puhul pärineb polümeeri moodustav monomeer gaasifaasist ja teisel juhul lahusest. Määrati, millistes etappides kile kasv toimub ja kuidas saada paremate omadustega kilet. Uuriti ka PEDOTi kilede vananemist ja nende juhtivuse vastupidavust erinevates keskkondades. Selgus, et uuritud PEDOTi kiled ei juhi elektrit nii hästi kui ITO ja nende juhtivus ei ole ka nii stabiilne. Ent avastati siiski üks rakendus, milles PEDOT on ITOst parem. Triboelektriline nanogeneraator on energiatootmisseade, mis suudab toota elektrit ka väikeste igapäevaelu liikumiste mehaanilisest energiast, mis muidu raisku läheb. PEDOTi kile kasutamine sellise seadme elektroodimaterjalina võimaldab kolm korda suuremat võimsustihedust kui ITO ja PEDOTi kile on selleks ka piisavalt stabiilne.; Conductive polymers are organic polymers, which conduct electricity. This fascinating class of materials has gained a lot of scientific attention starting already from the end of the 20th century, because it may become useful in numerous applications, from sensors to solar panels. For example, transparent electrodes consisting of indium tin oxide (ITO) films are used in a large number of devices. But ITO films are expensive and a cheaper solution would be greatly appreciated. For this purpose, a conductive polymer may be a better solution. Conductive polymers are also flexible while ITO is brittle, enabling preparation of flexible electronic devices. Poly(3,4-ethylenedioxythiphene) (PEDOT) is a conductive polymer, which could be used as a transparent electrode material. PEDOT has a relatively high conductivity, good transparency and quite stable conductive properties. However, none of these properties is perfect at the current level of development. Therefore, it is still necessary to find ways for improving these properties. Two different preparation methods for PEDOT thin films were studied in this thesis. For one method the source of polymerizing monomer is a gas… Advisors/Committee Members: Mäeorg, Uno, juhendaja (advisor), Timusk, Martin, juhendaja (advisor).

Subjects/Keywords: polymerization; polymer films; surface chemistry

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

APA (6^th Edition):

Metsik, J. (2018). Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications . (Thesis). Tartu University. Retrieved from http://hdl.handle.net/10062/61225

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):

Metsik, Jörgen. “Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications .” 2018. Thesis, Tartu University. Accessed January 24, 2021. http://hdl.handle.net/10062/61225.

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

MLA Handbook (7^th Edition):

Metsik, Jörgen. “Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications .” 2018. Web. 24 Jan 2021.

Vancouver:

Metsik J. Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications . [Internet] [Thesis]. Tartu University; 2018. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/10062/61225.

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

Council of Science Editors:

Metsik J. Preparation and stability of poly(3,4-ethylenedioxythiophene) thin films for transparent electrode applications . [Thesis]. Tartu University; 2018. Available from: http://hdl.handle.net/10062/61225

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

29. Gao, Weiran. Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6.

Degree: MS, 2018, Worcester Polytechnic Institute

URL: etd-071318-135124 ; https://digitalcommons.wpi.edu/etd-theses/1322

► We quantified the chemical species present at polycrystalline cesium tin bromide perovskite, CsSnBr3 and cesium titanium bromide antifluorite, Cs2TiBr6. For CsSnBr3, experiments utilized the orthogonal… (more)

Subjects/Keywords: perovskite; surface chemistry; TPD; XPS

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APA (6^th Edition):

Gao, W. (2018). Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6. (Thesis). Worcester Polytechnic Institute. Retrieved from etd-071318-135124 ; https://digitalcommons.wpi.edu/etd-theses/1322

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):

Gao, Weiran. “Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6.” 2018. Thesis, Worcester Polytechnic Institute. Accessed January 24, 2021. etd-071318-135124 ; https://digitalcommons.wpi.edu/etd-theses/1322.

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

MLA Handbook (7^th Edition):

Gao, Weiran. “Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6.” 2018. Web. 24 Jan 2021.

Vancouver:

Gao W. Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6. [Internet] [Thesis]. Worcester Polytechnic Institute; 2018. [cited 2021 Jan 24]. Available from: etd-071318-135124 ; https://digitalcommons.wpi.edu/etd-theses/1322.

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

Council of Science Editors:

Gao W. Synthesis and Quantification of Surface Reactivity on CsSnBr3 and Cs2TiBr6. [Thesis]. Worcester Polytechnic Institute; 2018. Available from: etd-071318-135124 ; https://digitalcommons.wpi.edu/etd-theses/1322

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

University of Maryland

30. Shao, Qian. SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES.

Degree: Chemistry, 2014, University of Maryland

URL: http://hdl.handle.net/1903/16149

► Since the 1985 discovery of C60, fullerenes have emerged as key nanoelectronic components and promising biomedical probes. Understanding how to direct-and switch-the packing arrangements of… (more)

Subjects/Keywords: Chemistry; fullerenes; STM; surface science

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APA (6^th Edition):

Shao, Q. (2014). SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/16149

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):

Shao, Qian. “SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES.” 2014. Thesis, University of Maryland. Accessed January 24, 2021. http://hdl.handle.net/1903/16149.

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

MLA Handbook (7^th Edition):

Shao, Qian. “SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES.” 2014. Web. 24 Jan 2021.

Vancouver:

Shao Q. SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES. [Internet] [Thesis]. University of Maryland; 2014. [cited 2021 Jan 24]. Available from: http://hdl.handle.net/1903/16149.

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

Council of Science Editors:

Shao Q. SELF-ORGANIZATION IN FULLERENE THIN FILMS ON METAL SURFACES. [Thesis]. University of Maryland; 2014. Available from: http://hdl.handle.net/1903/16149

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