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Dissertations / Theses on the topic 'Oxidation of metals with oxygen'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Vanover, Eric. "Photochemical Oxidation Studies of Porphyrin Ruthenium Complexes." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1201.

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In nature, transition metal containing enzymes display many biologically important, attractive and efficient catalytic oxidation reactions. Many transition metal catalysts have been designed to mimic the predominant oxidation catalysts in nature, namely, the cytochrome P450 enzymes. Ruthenium porphyrin complexes have been the center of this research and have successfully been utilized, as catalysts, in major oxidation reactions, such as the hydroxylation of alkanes. The present work focuses on photocatalytic studies of aerobic oxidation reactions with well characterized ruthenium porphyrin com

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2

Bush, Tamara Louise Deidre. "The reaction of oxygen and nitrogen molecular beams with clean and alkali-metal covered Si(100) surfaces." Thesis, Imperial College London, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.307428.

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3

Trotochaud, Lena. "Structure-Composition-Activity Relationships in Transition-Metal Oxide and Oxyhydroxide Oxygen-Evolution Electrocatalysts." Thesis, University of Oregon, 2014. http://hdl.handle.net/1794/18312.

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Solar water-splitting is a potentially transformative renewable energy technology. Slow kinetics of the oxygen evolution reaction (OER) limit the efficiency of solar-water-splitting devices, thus constituting a hurdle to widespread implementation of this technology. Catalysts must be stable under highly oxidizing conditions in aqueous electrolyte and minimally absorb light. A grand goal of OER catalysis research is the design of new materials with higher efficiencies enabled by comprehensive understanding of the fundamental chemistry behind catalyst activity. However, little progress has been

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4

Alakangas, Lena. "Sulphide oxidation, oxygen diffusion and metal mobility in sulphide-bearing mine tailings in Northern Sweden." Doctoral thesis, Luleå : Division of Applied Geology, Luleå University of Technology, 2006. http://epubl.ltu.se/1402-1544/2006/27/.

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5

Williams, Dara Bridget. "Tridentate, dianionic ligands for alkane functionalization with platinum(II) and oxidation of iridium(III) hydrides with dioxygen /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/8545.

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6

Del, Pilar Albaladejo Joselyn. "Zeolite-supported Cobalt Catalysts for Water Oxidation in Artificial Photosynthetic Systems." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1313603462.

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7

Amoyaw, Charles Duah. "Optimization of the Small Scale Expression of the Mutant Hen Egg White Lysozyme, H15S." Youngstown State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1587473897537747.

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8

Pérez, Inés Monte. "Bioinspired oxidation reactions involving mono- and poly-nuclear transition metal complexes." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2017. http://dx.doi.org/10.18452/17741.

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Hochvalente Metal-oxo-, -peroxo- und -nitrenzentren später Übergangsmetalle werden als reaktive Intermediate vieler technologisch interessanter und biologischer Transformationsreaktionen wie die Oxidation von Kohlenwasserstoffen, Hydroxylierung, Aminierung, Aziridierung und Sauerstoffreduktion angenommen. Die Isolierung und Charakterisierung solcher Intermediate, wenngleich sie sich schwierig gestaltet, kann wichtige Informationen zum Mechanismus solcher Reaktionen liefern und kann somit zu einer gezielten Optimierung und Herstellung von verbesserten Katalysatoren genutzt werden. In dieser A

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9

Cheignon, Clémence. "Oxidation of the amyloid-beta peptide and consequences on the etiology of Alzheimer's disease." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30347/document.

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La maladie d'Alzheimer (MA) est la forme la plus fréquente de démence chez les personnes âgées. L'une de ses caractéristiques est la formation extracellulaire de plaques séniles dans le cerveau des malades, composées du peptide Amyloïde-ß (Aß) sous forme agrégée et d'ions métalliques tels que le cuivre. Le peptide Aß forme un complexe avec les ions cuivre, capable de catalyser la formation d'espèces réactives de l'oxygène (ERO), en présence d'un réducteur tel que l'ascorbate. Ces espèces oxydantes sont délétères pour les molécules environnantes, ainsi que pour le peptide Aß lui-même. Etant pro

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10

Водолазская, Н. В., та Д. А. Шевченко. "Проблема повышения долговечности деталей машин, эксплуатируемых в агрессивных средах". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/11272.

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11

Tang, Yongan. "SYNTHESIS AND ELECTROCATALYSIS OF METAL NANOMATERIALS." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1402313477.

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12

Andana, Tahrizi. "Roles of morphology and foreign metals of ceria-based catalysts in improving oxidations of Diesel vehicle pollutants." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1066.

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Le travail au présent surligne la cérine nanostructurée et bien-définie ; une morphologie qui promeut une haute activité catalytique de la cérine dans l’oxydation des suies. Le travail présente également l’introduction des métaux pour le dopage, tels que praséodyme et zirconium, à la surface de la cérine pour améliorer la réductibilité, la stabilité thermique, et la capacité du stockage d’oxygène. L’oxydation à température programmée a été utilisée pour analyser l’activité catalytique. Au premier étage de la recherche, on a découvert que l’oxyde en mélange équimolaire de la cérine et de l’oxyd

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13

Cecchini, Chiara. "Late Transition Metal-Oxo complexes: Synthesis, and Biorelevant Reactivity." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amslaurea.unibo.it/11249/.

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High-valent terminal metal-oxygen adducts are supposed to be potent oxidising intermediates in enzymatic catalyses. In contrast to those from groups 6-8, oxidants that contain late transition metals (Co, Ni, Cu) are poorly understood. Because of their high reactivity, only a few examples of these compounds have been observed. The aim of this project was to investigate the reactivity of high-valent Ni(III) complexes, containing a monodentate oxygen-donor ligands, in hydrogen atom abstraction (HAA) and oxygen atom transfer (OAT) reactions which are typical of biological high-valent metal-oxygen

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14

Prouff, N. "Oxidation of metals." Thesis, University of Glasgow, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377188.

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15

Scheurell, Kerstin. "Vanadiumdotierte Metalloxide und -oxofluoride als Katalysatoren in selektiven Oxidationsreaktionen." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2006. http://dx.doi.org/10.18452/15409.

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In der vorliegenden Arbeit wurden unter Anwendung unterschiedlicher Präparationstechniken vanadiumdotierte Metalloxide bzw. –oxofluoride synthetisiert, umfassend charakterisiert und in katalytischen, selektiven Oxidationsreaktionen (ODH von Propan und Methanoloxidation) getestet. Die Festkörper- und oberflächenchemischen Eigenschaften wurden generell mittels CHN-Analyse, ICP-OES, XRD, Raman-, FTIR-, MAS-NMR- und ESR-Spektroskopie, Py-PAS, TPD und Tieftemperatur-Stickstoffadsorption untersucht. Ergänzend kamen an ausgewählten Proben der temperaturprogrammierte Sauerstoffisotopenaustausch und Ad

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16

Espinosa, de los Monteros Reyna Alejandra Elvira. "Oxydation voie humide du phénol et de l'acide acétique sur catalyseurs métalliques (Ru, Pt) supportés sur oxydes TiO2-CeO2." Thesis, Poitiers, 2013. http://www.theses.fr/2013POIT2264/document.

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Parmi les différents procédés chimiques, l'Oxydation en Voie Humide Catalysée (OVHC) apparaît comme une technique de choix pour le traitement des eaux usées à forte teneur en composés toxiques et peu biodégradables. Ce procédé, sous pression, est limité par la faible solubilité de l'oxygène. L'étape cruciale de la réaction est alors le transfert de l'oxygène jusqu'à la particule métallique via le support. Les phénomènes régissant ce transfert sont la composition des supports oxydes et l'interaction métal/support. L'objectif de ce travail est d'étudier l'influence de la teneur en CeO2, connue p

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17

Dupont, Nicolas. "Valorisation du biogaz de fermentation : combustion catalytique." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00816867.

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L'objectif de ce travail concerne l'étude de deux classes de catalyseurs, les oxydes mixtes (CuO/Al2O3, CuAl2O4, CuO-CuCr2O4, CuO-ZnO-Al2O3 dopés ou non par Ag et Mn) et les métaux nobles supportés (Pd/Al2O3 et Pt/Al2O3, Pd-Pt/Al2O3 dopés ou non par B) utilisés dans deux réactions différentes: la réaction d'oxydation à basse température de l'ammoniac en azote et la combustion catalytique à haute température du méthane pour la production d'énergie. Le biogaz, énergie renouvelable, est constitué majoritairement de méthane et de dioxyde de carbone. Il contient, entre autres, des traces d'ammoniac

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18

Malik, Sharali. "Oxidation of metals in a temperature gradient." Thesis, University of Kent, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279691.

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19

Andrieu, Eric. "Influence de l'environnement sur la propagation des fissures dans un superalliage base nickel : l'inconel 718." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376022112.

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20

Forster, Graeme. "Chloridation of metals and alloys." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328095.

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21

Karlsson, Erik. "Catalysts for Oxygen Production and Utilization : Closing the Oxygen Cycle: From Biomimetic Oxidation to Artificial Photosynthesis." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-56917.

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This thesis describes the development and study of catalysts for redox reactions, which either utilize oxygen or hydrogen peroxide for the purpose of selectively oxidizing organic substrates, or produce oxygen as the necessary byproduct in the production of hydrogen by artificial photosynthesis. The first chapter gives a general introduction about the use of environmentally friendly oxidants in the field of organic synthesis, and about the field of artificial photosynthesis. The second chapter describes a computational study of the mechanism of palladium-catalyzed oxidative carbohydroxylation

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22

King, Joan M. "Riboflavin Photosensitized Singlet Oxygen Oxidation of Vitamin D." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1392814029.

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23

Bradley, Dondeena G. "Riboflavin photosensitized singlet oxygen oxidation in milk products /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu148775817823755.

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24

González, Bártulos Marta. "Estudi de l'activitat antitumoral de nous compostos basats en metalls de transició." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/620757.

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Nowadays, cancer is one of the leading causes of death in developed countries. Therefore, there is great interest of developing new therapeutic strategies to improve the efficiency of current cancer treatments. The vulnerability of cancer cells to oxidative stress may be a therapeutic target for new anti-cancer agents design. Differential redox homeostasis in normal and malignant cells suggests that promoting upregulation of cellular reactive oxygen species (ROS) by pro-oxidant treatment could selectively target cancer cells without compromising the viability of healthy cells. The complexes g

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25

Hoh, Soon Wen. "Oxidation catalysis using transition metals and rare earth oxides." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/69756/.

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Oxygen abstraction together with CO adsorption and oxidation over palladium/platinum-doped cerium (IV) oxide and gold catalyst supported on iron (III) oxide were studied employing density functional theory with the inclusion of on-site Coulomb interaction (DFT+U). Hybrid functionals employing DFT method are able to re-produce structural properties for CeO2 that agrees well with experimental data. The localisation of two excess electrons upon the removal of an oxygen atom from the CeO2 lattice is well described by DFT+U and is found to be most favourable on two next nearest neighbour cerium sit

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26

Ji, Yun. "Kinetics and Mechanism of Oxygen Delignification." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/JiY2007.pdf.

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27

Walker, Forest P. "Kinetics of Arsenopyrite Oxidative Dissolution by Oxygen." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/9881.

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The objective of this study is to use a mixed flow reactor system to determine the dissolution rate and infer potential mechanisms of arsenopyrite (FeAsS) oxidation by dissolved oxygen at 25°C and circumneutral pH. Release rates for iron, arsenic and sulfur are calculated for a variety of initial dissolved oxygen (DO) concentrations. Results indicate that the rate of arsenopyrite oxidation, represented by the rate law r = A(6.76 x 10-11) where the rate, r, is in mol/s and surface area, A, is in m2, is not significantly dependent on DO concentration. Arsenic and sulfur are released in a 1:1 mol

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28

Gresley, Nia Melanie. "Heteropolyoxo-and heteropolyperoxometalates as oxidation catalysts." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243776.

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29

Potts, Hayley Lynn. "Oxidation barrier and light protective packaging properties for controlling light induced oxidation in milk." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/80441.

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Fluorescent light exposure has well documented negative effects on fluid milk through oxidation reactions. A shift to light-emitting diode (LED) lights in retail dairy cases has occurred due to increased energy efficiency, but the effects of LED light on fluid milk are not known. The objective was to study the interaction of light protective additives (LPA) with a high oxygen barrier package under fluorescent and LED lighting conditions simulating a retail refrigerated dairy case. The extent of oxidation in 2% milk packaged in polyethylene terephthalate (PET) packages with different light inte

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30

Shan, Jingning. "Polymer-supported catalysts for oxygen reduction and methanol oxidation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0017/MQ55541.pdf.

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31

Goldblatt, Colin. "Bistability of atmospheric oxygen, the Great Oxidation and climate." Thesis, University of East Anglia, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.446171.

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32

Beigley, John Robertson. "Oxidation of waxes using microwave-generated singlet molecular oxygen." Master's thesis, University of Cape Town, 1999. http://hdl.handle.net/11427/19577.

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Waxes are a widely used chemical commodity throughout the world due to certain intrinsic properties. Applications vary widely, including such obvious ones as candles and polishes, less obviously coatings, ink, and cosmetics, and more obscurely, hot melt adhesives, textile processing and chewing gum. The waxes used are obtained from a variety of sources, natural, mineral, and synthetic. The properties of the wax determine its suitability for a particular application. For certain of the latter, a wax containing Oxygen groups is often the most appropriate type. While there are a number of such wa

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33

Mannon, Adria G. "Preventing Oxidation of Dairy Powders Using Oxygen Removal Packaging." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/35970.

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Three types of dried milk (whole, nonfat, and buttermilk) were packaged in a modified atmosphere with a novel palladium-based oxygen removing catalyst and stored for eight weeks at 50Â°C. Powders stored in air with no catalyst and powders stored with the catalyst in an atmosphere modified to contain 5.7% hydrogen in nitrogen were evaluated by instrumental, chemical, and sensory methods. Hexanal concentrations were measured weekly using solid phase microextraction (SPME) and gas chromatography (GC) to compare the degrees of oxidation in the powders stored with the catalyst to those stored w

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34

Marsh, Chris. "Microstructural studies of high dose oxygen implanted silicon." Thesis, University of Oxford, 1993. http://ora.ox.ac.uk/objects/uuid:d0c65fa4-f0b4-4654-800f-53c7f182dad0.

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This work describes results obtained from detailed TEM, TED, HREM and SIMS analysis of the as-implanted and annealed microstructures of high dose (O.lxl0 17/cm2 to 1.7xl0<sup>18</sup>/cm²) oxygen implanted silicon (Si). Molecular oxygen (O<sub>2</sub><sup>+</sup>) has been implanted into Si wafers at equivalent energies of 200keV/O + , 90keV/O +, 70keV/O+ and 50keV/O+ to form, after annealing in flowing N<sub>2</sub> or Ar + ½ %O<sub>2</sub>, buried SiO<sub>2</sub> layers below single crystal surface Si layers. This process is called Separation by the IMplantation of OXygen (SIMOX). The energi

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35

Lücken, Jana. "Transformations of Energy-Related Small Molecules at Dinuclear Complexes." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-1563-4.

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36

Ahuja, Vishal. "Analysis of novel transition metals as catalysts for oxygen delignification." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62909.pdf.

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37

Krothapalli, Deep. "Gas-liquid Mass Transfer in Oxygen Delignification Systems." Fogler Library, University of Maine, 2004. http://www.library.umaine.edu/theses/pdf/KrothapalliD2004.pdf.

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38

Tran, Lien-Hoa. "Biomimetic Reactions : Water Oxidation and Aerobic Oxidation." Doctoral thesis, Stockholm : Department of Organic Chemistry, Stockholm University, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-26259.

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39

Wang, Ruifu. "The Solution Behavior of Abundant Metals based Water Oxidation Catalysts." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460301627.

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40

Dickerson, Lyndel Dwayne. "Autoxidation of lacunar iron(II) dioxygen carriers /." The Ohio State University, 1985. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487262825077676.

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41

Ngameni, Emmanuel. "Comportement électrochimique de biporphyrines adsorbées ou en solutions aqueuses acides : Etude du pouvoir catalytique de la biporphyrine de cobalt, CO::(2) FTF4, à l'égard de la réduction de l'oxygène." Brest, 1988. http://www.theses.fr/1988BRES2021.

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42

Haider, Peter Sebastian. "Potential of gold-based catalysts for catalytic oxidation with oxygen /." Zürich : ETH, 2009. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=18223.

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43

Luduvice, Mauricio. "Wet air oxidation of organic sludges at low oxygen overpressure." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239243.

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44

Wright, Adam. "Investigations of singlet oxygen-mediated amino acid, peptide and protein oxidation." Thesis, The University of Sydney, 2002. https://hdl.handle.net/2123/27830.

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45

Er-Rakho, Lahcen. "Oxydes de cuivre a valence mixte : perovskites deficitaires en oxygene." Caen, 1987. http://www.theses.fr/1987CAEN2036.

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Mise en evidence et etude de deux grandes familles de composes dans le systeme la::(2)o::(3)-ao-cuo(a=ca,ba,sr) : la::(2-x)ba::(1-x)cu::(1-x/2)o::(5-x)(ln=la,nd) ou cu est essentiellement au degre d'oxydation 2 et une seconde famille caracterisee par la valence mixte du cuivre, les quantites de cuivre 3 pouvant atteindre dans certains cas 40%. Tous ces oxydes ont en commum leur appartenance a la structure perovskite. Proprietes electriques et magnetiques

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46

Al-Musa, Abdullah Abdulaziz. "Partial oxidation of propene using solid electrolyte membrane reactors." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/6915.

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This study investigates the efficiency of a calcia stabilised zirconia (CaSZ) solid electrolyte as an oxygen ion conductor. The study also examines the behaviour of the oxygen species conducted by the solid electrolyte compared to species provided in the gas phase for partial oxidation of hydrocarbons. In this work, an electrochemical cell of the form Air, AgHCaSZ//Ag, Carrier gas was used to investigate the electrochemical efficiency and stability of the solid electrolyte CaSZ conducting of oxygen ions under atmospheric pressure conditions at 500 degrees C by applying a range of electrical po

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47

Madanhire, Tatenda. "Synthesis and characterisation of lanthanide complexes with nitrogen- and oxygen-donor ligands." Thesis, Nelson Mandela Metropolitan University, 2016. http://hdl.handle.net/10948/13127.

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The reactions of Ln(NO3)3∙6H2O (Ln = Pr, Nd or Er) with the potentially tridentate O,N,O chelating ligand 2,6-pyridinedimethanol (H2pydm) were investigated, and complexes with the formula, [Ln(H2pydm)2(NO3)2](NO3) (Ln = Pr or Nd) and [Er(H2pydm)3](NO3)3 were isolated. The ten-coordinate Pr(III) and Nd(III) compounds crystallise in the triclinic space group P-1 while the nine-coordinate Er(III) complex crystallises in the monoclinic system (P21/n). The reaction of PrCl3∙6H2O with H2pydm yielded the compound, [Pr(H2pydm)3](Cl)3, that crystallises in the monoclinic system, space group P21/c with

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48

Dann, Sandra Elizabeth. "Preparation and characterisation of high oxidation state compounds of transition metals." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241254.

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49

Javu, Bulelwa Patricia. "Multi-component Platinum Group Metals for the methanol electro-oxidation process." University of the Western Cape, 2018. http://hdl.handle.net/11394/6571.

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>Magister Scientiae - MSc<br>The purpose of this study was to develop a high performance-lower cost catalyst to be applied in Direct Methanol Fuel Cells (DMFC). The study also aimed to prepare plurimetallic supported platinum (Pt), platinum-ruthenium (PtRu), platinum-ruthenium-vanadium (PtRuV) and platinum ruthenium-vanadium-iron (PtRuVFe) upon multi-walled carbon nanotube (MWCNT) as well as upon multiwalled carbon nanotube-titanium oxide (MWCNT/TiO2) supports. Platinum is very active but prone to poisoning by carbon monoxide (CO), which may be present in the fuel used in fuel cells. Th

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50

Violette, Steven M. "Oxygen Delignification Kinetics and Selectivity Improvement." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/VioletteSM2003.pdf.

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