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
... hydrogen partial pressures of 0.030 and 0.20 atm , respectively . The incorporation of only 1.5 at . % copper decreases the amount of strongly chemisorbed hydrogen by about 60 % and lowers the activity for ethane hydrogenolysis by three ...
... hydrogen partial pressures of 0.030 and 0.20 atm , respectively . The incorporation of only 1.5 at . % copper decreases the amount of strongly chemisorbed hydrogen by about 60 % and lowers the activity for ethane hydrogenolysis by three ...
Page 40
... hydrogen chemisorption . This relation suggests that the mode of chemisorption of eth- ane required for the hydrogenolysis reaction is more demanding than strong hydrogen chemisorption with regard to the nature of the surface site ...
... hydrogen chemisorption . This relation suggests that the mode of chemisorption of eth- ane required for the hydrogenolysis reaction is more demanding than strong hydrogen chemisorption with regard to the nature of the surface site ...
Page 56
... hydrogen chemisorption capacity . The atomic ratio of copper to ruthenium corresponding to a given degree of suppression of hydrogen chemisorption capacity , or to a given decrease in ethane hydrogenolysis ac- Relative specific adsorption ...
... hydrogen chemisorption capacity . The atomic ratio of copper to ruthenium corresponding to a given degree of suppression of hydrogen chemisorption capacity , or to a given decrease in ethane hydrogenolysis ac- Relative specific adsorption ...
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