Bimetallic Catalysts: Discoveries, Concepts, and ApplicationsPresents an account of the research on bimetallic catalysts. Focuses attention on the possibility of influencing the selectivity of chemical transformations on metal surfaces and preparing metal alloys in a highly dispersed state. Covers the validation and elucidation of the bimetallic cluster concept. Includes figures and tables. |
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Page 37
... copper with the ruthenium markedly decreases the amount of strongly adsorbed hydrogen . The copper also strongly suppresses the catalytic activity of ruthenium for the hydrogenolysis of ethane to methane ... RUTHENIUM - COPPER AGGREGATES 37.
... copper with the ruthenium markedly decreases the amount of strongly adsorbed hydrogen . The copper also strongly suppresses the catalytic activity of ruthenium for the hydrogenolysis of ethane to methane ... RUTHENIUM - COPPER AGGREGATES 37.
Page 56
... ruthenium - copper and osmium- copper , in view of the extremely low miscibility of copper with ruthenium or osmium ... aggregates with highly dispersed , silica- supported ruthenium - copper clusters are given in Figures 4.2 and 4.3 ...
... ruthenium - copper and osmium- copper , in view of the extremely low miscibility of copper with ruthenium or osmium ... aggregates with highly dispersed , silica- supported ruthenium - copper clusters are given in Figures 4.2 and 4.3 ...
Page 57
... Ru - Cu aggregates 10-5 Highly dispersed Ru - Cu clusters 0.2 0.4 0.6 0.8 Cu / Ru atomic ratio Figure 4.3 Influence of the state of dispersion of ruthenium - copper catalysts on the relationship between ethane hydrogenolysis activity ...
... Ru - Cu aggregates 10-5 Highly dispersed Ru - Cu clusters 0.2 0.4 0.6 0.8 Cu / Ru atomic ratio Figure 4.3 Influence of the state of dispersion of ruthenium - copper catalysts on the relationship between ethane hydrogenolysis activity ...
Common terms and phrases
absorber atom absorption edge absorption fine structure Academic Press adsorbed alkanes alloys alumina aromatic hydrocarbons atomic ratio atoms benzene bimetallic catalysts bimetallic clusters bulk calcined carbon monoxide cata Catal catalyst containing catalytic activity catalytic reforming Chem components composition coordination shell copper copper atoms copper EXAFS corresponding crystallites CuOs cycloalkanes cyclohexane decreases dehydrogenation electron energy EXAFS data fitting error Group IB metal Group VIII metal H₂ highly dispersed hydrogen chemisorption hydrogen partial pressure interatomic distance isomerization isotherm lower lysts methylcyclopentane Mössbauer Mössbauer effect n-heptane naphtha nearest neighbor nickel nickel-copper alloys obtained OsCu osmium osmium and copper osmium-copper catalyst parameters partial pressure permission from Academic phase shift functions Phys platinum and iridium platinum-iridium catalyst platinum-rhenium catalyst reactions reference catalyst Reprinted with permission rhenium room temperature ruthenium-copper aggregates ruthenium-copper catalyst sample shown in Figure silica silica-supported Sinfelt space velocity spectroscopy studies surface atoms tion values X-ray diffraction yields