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Articles 1 - 3 of 3
Full-Text Articles in Chemistry
Intersections Of Environmentalism, Chemistry, And Racism: An Experimental Study Of Halobenzene Hydrogenolysis And Critical Communication Studies Of Equitable Learning Practices Rooted In Black Feminism, Lauren O. Babb
Electronic Theses and Dissertations
Increasing concentrations of fluorinated aromatic compounds in surface water, groundwater, and soil pose threats to the environment. Fundamental studies that elucidate mechanisms of dehalogenation for C-X compounds (where X represents a halide) are required to develop effective remediation strategies. For halogenated benzenes, previously published research has suggested that the strength of the C-X bond is not rate-determining in the overall rate of dehalogenation. Instead, the rate-determining step has been hypothesized to be adsorption of the C-X compound onto the surface of a catalyst. Building on this hypothesis, in this work, we examine the reaction kinetics of fluorobenzene conversion to benzene, …
Synthesis And Evaluation Of Water-Dispersed Aryl-Gold Nanoparticles And Applications In Catalysis, Ahmad Al Ahmad
Synthesis And Evaluation Of Water-Dispersed Aryl-Gold Nanoparticles And Applications In Catalysis, Ahmad Al Ahmad
Electronic Theses and Dissertations
Gold nanoparticles have been used in environmental remediation as catalysts through biological and chemical redox reactions of many types of industrial waste including nitroarenes, organic dyes, carbon monoxide, and others. These reactions occur in harsh environmental conditions (e.g. changing temperature, presence of salts, extreme pH solutions) which require robust nanoparticles that can keep their activity and resist aggregation. This thesis describes the synthesis, characterization, and investigation of the catalytic activity of gold-aryl nanoparticles. Gold–aryl nanoparticles (AuNPs-COOH) fabricated using a mild reduction process of a molecular aryldiazonium gold(III) salt [HOOC-4-C6H4N≡N]AuCl4 showed high stability in the presence of high ionic strength salt, …
Solvent Effects In Phenol Hydrogenation On A Supported Ruthenium Catalyst, Daniel Mckeon
Solvent Effects In Phenol Hydrogenation On A Supported Ruthenium Catalyst, Daniel Mckeon
Honors College
Growing concerns around climate have piqued interest in using biobased alternatives in place of fuels and chemicals traditionally made from petroleum. Lignocellulosic biomass has been noted for its potential as a biobased chemical precursor in the context of a biorefinery. It can be pyrolyzed to yield an oil, but catalytic upgrading is required to lower oxygen content to suitable levels. Ruthenium supported on titania has been identified as a catalyst suitable for hydrodeoxygenation of oxygenated aromatic pyrolysis products in the liquid phase. In liquid phase reactions, intermolecular attractions between the solvent and the reactants can significantly change chemical activities and …