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Full-Text Articles in Materials Chemistry
Investigation Of Ceria-Nickel Containing Aerogels For Catalytic Converter Applications, Xiao Peng Li
Investigation Of Ceria-Nickel Containing Aerogels For Catalytic Converter Applications, Xiao Peng Li
Honors Theses
Aerogels have physical properties that make them appealing for automotive exhaust catalysis: they are highly porous with low density and high surface area. Current catalytic converter technology uses precious metals (Pt, Pd and Rh) to oxidize CO and unburned hydrocarbons and reduce NO. Catalytic-metal-containing aerogel can potentially be a less expensive alternative for use in catalytic converters. Prior work with nickel-alumina aerogels indicated promise for this application; the goal of including ceria is to increase oxygen storage and thereby enhance catalytic ability. Here, cerium- and nickel-containing aerogels, with an alumina backbone and silica backbone, are fabricated using an epoxide-assisted recipe …
Sol-Gel Assembly Of Metal Nanostructures Into Metallic Gel Frameworks And Their Applications, Xiaonan Gao
Sol-Gel Assembly Of Metal Nanostructures Into Metallic Gel Frameworks And Their Applications, Xiaonan Gao
Theses and Dissertations
The advent of nanoscience and nanotechnology has sparked many research forefronts in the creation of materials with control over size, shape, composition, and surface properties.1,2 However, for most of the applications, nanoscale materials need to be assembled into functional nanostructures that exhibit useful and controllable physical properties. Therefore, numerous efforts on the assembly of nanoparticles (NPs) using organic ligands, polymers and polyelectrolytes have been reported.3,4 However, the interactions between NPs are mediated by intervening ligands, which are detrimental to charge transport and limit the thermal stability. Hence, developing a new method to produce solid …