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- Characterization of catalytic materials - Israel E. Wachs, Lee E. Fitzpatrick - Google Книги
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Heterogeneous Catalytic Materials discusses experimental methods and the latest developments in three areas of research: Catalytic materials are those solids that allow the chemical reaction to occur efficiently and cost-effectively. This book provides you with all necessary information to synthesize, characterize, and relate the properties of a catalyst to its behavior, enabling you to select the appropriate catalyst for the process and reactor system.
Oxides used both as catalysts and as supports for catalysts , mixed and complex oxides and salts, halides, sulfides, carbides, and unsupported and supported metals are all considered. The book encompasses applications in industrial chemistry, refinery, petrochemistry, biomass conversion, energy production, and environmental protection technologies.
Characterization of catalytic materials - Israel E. Wachs, Lee E. Fitzpatrick - Google Книги
The samples were analyzed by x-ray diffraction for the crystal structure, transmission electron microscope TEM and scanning electron microscope SEM for size determination, Rutherford Backscattering Spectrometry for composition analysis, and x-ray photoelectron spectrometer for the oxidation state analysis. With the two techniques, particles in the range of nm can be prepared.
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The Open Surface. Catalytic Activity of WC x Nanoparticles. To confirm that the WC x nanoparticles are catalytically active, we tested and compared the dehydrogenation and hydrogenation activities between nano-WC x and supported nanoparticles of Pt.
Another objective is to determine the feasibility of using nano-WC x as less expensive, more selective catalysts to replace Pt-group metals for the removal of aromatics molecules. The comparison clearly indicates that nano-WC and nano-Pt demonstrate different product selectivity in terms of hydrogenation and dehydrogenation.
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We are exploring the hydrogenation of cyclohexene and benzene on nano-WC x and nano-Pt at different hydrogen to hydrocarbon ratios. Such conditions will be adopted to further investigate the removal of the aromatics pollutants by selective hydrogenation using nano-WC x and to remove nitrogen oxides using nano-WC x. Future activities of this research project include: Progress and Final Reports: