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 88 for “"precious metal"”.
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New precious metal compounds in cancer therapy
… contexts, including in killing cancer cells. The metal centres gold(lIl) and rhodium(lI) are isoelectronic to the platinum(ll) centre in cisplatin, and some of their compounds have been shown to have biological activity. The aims of this work were to prepare pyridinecontaining complexes of the …
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DEVELOPMENT OF PRECIOUS METAL-FREE, LIGHT-ENABLED SYNTHETIC METHODOLOGIES
… majority of photocatalyzed reactions used organometallic complexes, whose properties made them very attractive. On the other hand, since the natural abundance of these metals is limited and their cost is constantly increasing, it would be highly desirable to replace them with cheaper and readily …
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Properties and applications of metastable precious metal intermetallic compounds
Precious metal alloys and compounds have myriad applications in the fast-expanding horizons of the commercial and industrial worlds. They are also fascinating topics for scientific research. These materials have a long history, with gold and silver amongst the very earliest metals used by humans. …
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SYNTHETIC AND MECHANISTIC STUDIES OF PRECIOUS METAL-MODIFIED TYROSINE KINASE INHIBITORS
… new treatments for cancer patients. Simple metal complexes and metal–organic hybrid agents have been investigated as anti-cancer therapies but their applications in targeted therapies remain to be explored. The goal of the research described in this dissertation was to design metal-modified …
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Non-precious metal catalysts prepared by chemical functionalization of carbon surfaces.
… ongoing research towards the discovery of non-precious metal catalysts (NPMC) with activity comparable to that of Pt. The Fe-N/C catalyst system is a promising alternative, though the exact structure of the active catalytic site is still debated. Active catalysts are typically formed by high …
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The Development of Sustainable Hydrometallurgical Processes for the Recovery of Precious Metal
The study investigates the utilization of cedar wood bark as bioadsorbent for the adsorption and simultaneous precipitation of gold as flakes. This is with a view to establishing the electrochemical study of the adsorption and evaluate pre-treated cedar wood bark as possible adsorbent for gold in …
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Designing high performance overall water splitting electrocatalysts from non-precious metal selenides
… mediate and expedite the reaction process. Mixed precious iridium-ruthenium oxides have been investigated as promising electrocatalysts for the OER. Lately first row transition metal chalcogenides have experienced an improving attention for hydrogen evolution reaction (HER). Over the course of the …
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Manufacture and Characterization of Ionic Polymer Transducers Employing Non-Precious Metal Electrodes
… is very high because of the expensive noble metals that are used as the electrodes in these applications, however. Currently, high cost of these devices has prevented them from experiencing widespread use. The goal of the current research project is to study new methods of plating metal …
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Film formation on precious metal surfaces in the presence of epoxy resins
… and resin treatment on film formation on metal surfaces exposed to epoxy resin. Epoxy rods were prepared from novolac hardened by 4-4' methylenedianiline (MDA). The curing and post curing temperatures were 60, 125 °C and 125, 160 °C. The composition of the epoxies used were 27.0 and 31. 5 …
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Non-Precious Metal-Based Electrocatalysts from Prussian Blue Analogues for Energy-Related Reaction
… green and renewable energy technologies, such as metal-air batteries, fuel cells, hydrogen production and biomass refining. Till now, a large amount of electrocatalysts have been already reported for active electrocatalysis, whereas, most of them suffer from either high expense or poor stability …
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Metal–organic framework based non-precious metal electrocatalysts for the oxygen reduction reaction
… this, the development of non-platinum group metal (non-PGM) catalysts is a research area of great relevance. This thesis serves to (1) address the mechanism surrounding non-PGM electrocatalysts and provide a method to understand the structure-property relationship, and (2) study strategies in …
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Separation of precious metal beta from a JSE multivariate model with macroeconomic variables
… that it can be able to separate the beta for the precious metal factor within the model. The process goes via the investigation of macrovariables (with precious metals used as one of the macrovariables) and their effect on market (JSE) returns. A complete analysis and modeling of this relationship …
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Development & characterization of bio-inspired earth-abundant metal systems and extreme ultraviolet spectroscopy of precious metal photocatalysts
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-08-01
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Understanding non-precious metal catalysts for the oxygen reduction reaction and investigating corrosion and surface properties of carbon-doped aluminum alloys
… to understand the active species within non-precious metal catalysts for potential future applications in fuel cells as a replacement for the more costly Pt-based catalysts used today. The final chapter reports on the electrochemical properties of a new type of Al alloy into which carbon has …
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Geology and mineralization in the vicinity of the Morning Star precious-metal deposit of the Ivanpah Mountains, San Bernardino County, California
Disseminated precious-metal mineralization occurs at the Morning Star deposit, in the upper-plate of the Morning Star thrust which represents intermediate age (105 and 90 Ma) faulting along the Mesozoic foreland fold and thrust belt (MFFTB). Deformation along the Morning Star thrust consists of …
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The Smallest Base and Precious Metal Deposits in the World: Vapor Transport and deposition of Co-Cu-Sn-Ag alloys in vesicles
<p>Metallic bronze-Co-Ag alloys ranging from1-90 µm have been discovered in bomb and lava vesicles from the mafic volcanoes of Kilauea in Hawaii and Vesuvius, Stromboli and Etna in Italy. It is inferred that the metals for these alloys were transported (in part) as chloride complexes, and that the …
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Modeling and Simulation of Coupled LNT – SCR Catalytic System under Anaerobic and Aerobic Operating Conditions
An important goal is to minimize the required precious metal loading in the LNT while keeping the NOx emission below a specified level. We present a mathematical model of this system using hydrogen as the reductant. Simulations are used to determine the influence of the architecture of the LNT-SCR …
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