Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 124 for “"Oxidation Reaction"”.
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Predictive model of PDP oxidation reaction with machine learning approach
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Thermochemistry and kinetics in pyrolysis and oxidation reaction of oxygenate chlorocarbons, neopentane, and ortho-xylene
… [Delta]H_f_{298} are determined using isodesmic reactions with group balance. Groups for use in Benson type additivity estimations are determined for the carbon bonded to oxygen and chlorine(s). Hydrogen bond increment groups for the chloroalkoxy, hydroxy chloroalkyl radicals and interaction …
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Praseodymium doping in Pd/CeO2 systems: material properties and application for the complete methane oxidation reaction
L'abstract è presente nell'allegato / the abstract is in the attachment
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Morphology Controlled Synthesis of Copper Based Multimetallic Nanostructures and Their Electrocatalytic Properties for Methanol Oxidation Reaction
… their electrocatalytic properties for methanol oxidation reaction (MOR). Copper nanomaterials (Cu NM) with specific surface facets can tailor their catalytic activity. Understanding reagents responsible for Cu NM growth is important for morphology-controlled synthesis of the nanostructures. This …
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Dynamic Incompressible Navier-Stokes Model of Catalytic Converter in 1-D Including Fundamental Oxidation Reaction Rate Expressions
… the history of catalyst modeling that precise reaction rate expressions are needed for accurate predictions. In order to determine the correct reaction rate expression, this work includes the history of the fundamental reactions of automotive catalysts including carbon monoxide (CO), hydrogen …
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Aerosol Synthesis and Electrochemical Analysis of Niobium Mixed-Metal Oxides for the Ethanol Oxidation Reaction in Acid and Alkaline Electrolyte
… in fuel cells can only be realized if the reaction follows a total oxidation pathway to produce CO2. This must be achieved by the development of advanced catalysts that are electrically conductive, stable in corrosive environments, contain a high surface area on which the reaction can …
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Genetic and Biochemical Characterization of a Phoa-Dependent Pathway for Phosphite Oxidation in Escherichia Coli
… characterization of a pathway for phosphite oxidation in Escherichia coli is described in this thesis work. Genetic comparison of different E. coli strains revealed that a phosphite oxidation pathway is dependent on the presence of bacterial alkaline phosphatase (BAP). Transposon mutagenesis …
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The impact of metals and other stress factors on microbial ammonia oxidation physiology and isotope effects
… health, and climate change. Ammonia (NH3) oxidation, the first and rate-limiting step of nitrification, is carried out by bacteria (AOB) and archaea (AOA). Despite more than a century of research into the physiology of AOB, and only more recently AOA, fundamental questions remain about the …
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A iron-57 Moessbauer study on the thermal oxidation of iron in biotite mica.
We have studied the oxidation in air of a well characterized biotite sample. Large single crystal wafers were annealed at various temperatures up to 875$\sp\circ$C and for various times up to 94 hours. The oxidation proceeds primarily via the oxyannite reaction: $\rm (Fe\sp{2+} + OH\sp-)\sb{mica} …
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Ozone Decomposition and Acetone Oxidation on Manganese Oxide Catalysts
… oxide catalysts and their application in the oxidation of acetone, a typical volatile organic compound (VOC), and ozone decomposition. This topic is of great value because of environmental concerns of the elimination of the harmful VOCs and ozone. Manganese oxide was chosen because it is a …
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Oxidation kinetics of molten copper sulphide
The oxidation kinetics of molten copper sulphide were investigated by quantitative measurements and qualitative observations. Off-gas analyses for SO2 and 02 were conducted to determine the oxidation rates of approximately 200-gram samples, ofmolten 99.5% Cu2S. The molten sulphide was held in …
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Effect of iron content on electrodeposited Fe-MnOx catalysts for water oxidation
… known to be efficient catalysts for the water oxidation reaction (WOR). I present the exploration of an optimal method of cathodically electrodepositing MnOx catalysts on an FTO substrate, allowing for quick synthesis and a homogeneous coverage of the substrate. I then study WOR activity of the …
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Gold based electro catalysts
… to their reactivity for a variety of important reactions such as the oxygen reduction reaction. This activity has been shown to be dependent on the size of the supported electrocatalyst nanoparticles. In this thesis the effects of Au nanoparticle size are explored for the oxygen reduction, …
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Linear allylic C-H oxidation: methods and utility
… complex functional groups through the use of C-H oxidation methodologies has the potential to dramatically increase the efficiency of synthetic sequences with respect to resources, time and overall steps to key intermediates. This work describes methods that target complex intermediates to show …
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Improving synthetic efficiency through C—H activation
… constructed by chemists using C—C bond forming reactions to join preoxidized fragments. Furthermore, the strategic application of C—H activation reactions has considerable potential for improving the overall efficiency of synthetic endeavors by introducing functionality directly into …
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Silicon carbide oxidation in high temperature steam
… Commission is the exothermic zircaloy-steam oxidation reaction which can potentially occur during a loss of coolant accident (LOCA), and may become autocatalytic beyond 1,200 0C, thus generating a large amount of hydrogen. The concern for the zircaloy oxidation reaction has been heightened …
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Furanic Molecules: Multiplexed Synchrotron Photoionization Investigations and Aerosol Studies
<p> The oxidation reactions of 2-methylfuran (2MF) and 2-ethylfuran (2EF) initiated by Cl radicals is studied at the low temperatures, in addition to the determination of the absolute photoionization cross-sections of 2EF, 2-acetylfuran, and furfural. These experiments are carried out using …
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NICKEL HYDROXIDE NANORIBBONS FOR EFFICIENT WATER SPLITTING AND DIRECT METHANOL FUEL CELL
Oxygen evolution reaction (OER) and methanol oxidation reaction (MOR) are very important reactions in hydrogen harvesting system and direct methanol fuel cell (DMFC). However, these two reactions are sluggish processes, due to the multi-proton coupled reactions. In this work, we report the first …
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Studies of the Preparations and Use of Sol-Gel for Enzyme Immobilization and Analytical Applications.
… of hydrogen peroxide produced from the oxidation reaction of glucose.</p>
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Waste to an Asset, H2S to Hydrogen: A DFT Study
… investigate the mechanism of electrochemical H2S oxidation reaction (H2SOR) over various metal oxides and metal sulfides using Density Functional Theory (DFT) calculations. We demonstrate why RuO2 has been widely reported as an active H2SOR catalyst. We also show that metal oxides are susceptible …
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