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 52 for “"electrochemical oxidation"”.
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Electrochemical oxidation of cyanide in a porous-bed flow-reactor
Includes bibliographical references.
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Matrix Effects on Electrochemical Oxidation of PFAS in Real Wastewater Systems
… in conventional water treatment processes. Electrochemical oxidation has emerged as a promising technique for degrading PFAS, particularly in complex and high-strength wastewater systems. However, the efficiency of electrochemical oxidation is strongly influenced by the chemical composition …
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Electrochemical oxidation and reduction of 5-hydroxymethylfurfural in alkaline water electrolyzers
… this reason, in addition to scale-up problems in electrochemical cells, this work deals with the electrochemical conversion of HMF in anion exchange membrane water electrolyzers. Specifically, the oxidation of HMF is catalyzed by nickel-based layered double hydroxides. Here, the NiFe(-Cl-)-LDH@NF …
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VALORIZATION OF POLYHYDROXYLATED AND HALOGENATED COMPOUNDS THROUGH ELECTROCHEMICAL OXIDATION-REDUCTION REACTIONS
… of renewable energies, it has been shown that electrochemical routes can be more advantageous than the chemical ones. Thus, an upscaling of the most promising electrochemical processes will be necessary in the short-term future. In this context of increasing importance of electrochemistry as a …
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Electrochemical Oxidation of Carbon Monoxide in Reformate Hydrogen for PEM Fuel Cells
… the operating needs. We developed a twin cell electrochemical filter that is similar in construction of the PEMFC and remove CO with minimal fuel loss. In this CO in fuel gas is adsorbed on a Pt electrode and oxidized by applying a pulse potential. The CO kinetics on Pt electrode was …
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A Computational Approach to Efficient Electrode Material Design for Electrochemical Oxidation of PFAS
… Among destructive treatment technologies, electrochemical advanced oxidation processes (EAOP) have shown great promise for PFAS remediation in water. However, the reaction mechanisms are inadequately understood, which hinders the development of design principles for efficient electrode …
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The Development of Energy Efficient Wastewater Treatment: Electrochemical Oxidation and PFACs liquid-liquid Extraction
… that can oxidize organic compounds by direct oxidation and indirect oxidation (hydroxyl radical HO•) on the anode. The benefits of EAOPs are: 1) They are driven by electric power. The stoichiometric connection between power consumption and pollutant removal in EAOP is almost linear. Therefore, …
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Li₂0₂ in Li-0₂ batteries : catalytic enhancement of electrochemical oxidation and thermophysical transformations
… concerns. This thesis is concerned with the poor oxidation kinetics of the discharge product Li20 2, root cause of poor round trip efficiency, and the thermal stability of the candidate discharge products Li 20 2 and Li20. Catalysis of the Li20 2-oxidation by LaCrO 3, Bao.5Sro.5Coo.8Feo.20 3 …
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THEORETICAL PREDICTIONS OF POTENTIALS FOR INTERMEDIATE STEPS IN METHANOL AND ETHANOL ELECTROCHEMICAL OXIDATION ON Pt(111)
The elementary steps of methanol and ethanol electrochemical oxidation on Pt(111) were investigated using quantum mechanics theory. The reversible potential for each electron-transfer step and the reaction energy for non-electron transfer steps were calculated in bulk solution using Interface 1.0. …
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Novel reaction discovery with rapid high-throughput experimentation via infrared spectroscopy and enzymatic electrochemical oxidation of alcohols
… the HTS platform, we examined the possibility of electrochemical enzymatic catalysis. Galactose oxidase is known to selectively eliminate the pro-S hydrogen during oxidation of alcohol reagents due to the steric constraints of the active site. Electrochemistry tend to feature mild reaction …
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Electrochemical Oxidation of Individual Silver Nanoparticles: Exploring the Effect of Particle Shape, Capping Ligand, Electrolyte, and Potential on the Signal
… presence of potassium chloride encourages the oxidation of polyethylene glycol capped particles at an increasing rate over time, but rarely allows oxidation poly-vinylpyrrolidone capped particles. Instead, these particles are better oxidized to silver oxide either in potassium nitrate at high …
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Electrochemical oxidation of aliphatic carboxylates: Kinetics, thermodynamics, and evidence for a shift from a concerted to a stepwise mechanism in the presence of water
The mechanism and the oxidation potential of the dissociative single electron transfer for tetra-n-butylammonium acetate has been investigated via conventional (cyclic voltammetry) and convolution voltammetry. The oxidation potential for tetra-n-butylammonium acetate was determined to be 0.60 ± …
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Stabilization of electron-deficient sulfur by neighboring sulfur and oxygen groups.
… shows neighboring group participation upon oxidation as evidenced by the peak potential for oxidation in cyclic voltammetry, 0.9 V versus Ag/0.1 M AgNO₃, and by the formation of its monosulfoxide by controlled potential electrolysis in an overall two electron process. Pulse radiolysis of …
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Combining chemical with biological oxidation for efficient treatment of chloronitrobenzene in groundwater
… immediate remedial approaches, such as advanced oxidation processes (AOPs). While AOPs are effective for the removal of many organic contaminants from water, these techniques are often costly, especially when complete mineralization is the goal. In this study, it was hypothesized that chemical …
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Investigation into an adsorption and electrochemical regeneration process for the treatment of two trace level pesticides
… Arvia Process combines adsorption with in-situ electrochemical regeneration which leads to the electrochemical oxidation of the adsorbed organic contaminant. The aim of the present study was to test the individual stages of the Arvia Process, namely adsorption and electrochemical regeneration of …
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An electrochemical pipette for the study of drug metabolite
… by the cytochrome P450 superfamily. The electrochemical generation and identification of metabolites are time-sensitive, necessitating adjustable cell designs for accurate mechanistic interpretation. In chapters one and two, we present a thin-layer electrode (TLE) that addresses the needs …
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Simulations of nanoscale spatial disorder
… We also created a material simulation of the electrochemical oxidation of a metal surface with nanoscale roughness. We demonstrated that by preserving the amount of metal and making the oxide coating conformal, anodization can highly planarize the metal surface. We verify the convergence of …
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Magnetic Resonance at Electrified Interfaces: Study of Carbon Monoxide on Platinum
… is concerned with CO binding to platinum in an electrochemical environment, and the development of equipment and methodology for the enhanced interface of electrochemical and NMR techniques. In this work, the author shows (using variable temperature NMR experiments) that the electrochemical …
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Experimental and Theoretical Study of Inclusions During Initiation of Crevice Corrosion
… experiments showed that the products of the MnS electrochemical oxidation reaction were elemental sulfur and thiosulfate. Spectroelectrochemical cell experiments on MnS quantified the electrochemical production of thiosulfate. This finding linked the metallurgical and solution phases and …
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