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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Results 1-3 of 16
Page 45
... shows the relationship expected if the ruthenium and copper were uniformly distributed throughout the samples , as determined from ESCA data on pure ruthenium and copper . The solid curve shows the data actually obtained . Intensity ...
... shows the relationship expected if the ruthenium and copper were uniformly distributed throughout the samples , as determined from ESCA data on pure ruthenium and copper . The solid curve shows the data actually obtained . Intensity ...
Page 107
... show the normalized fitting error as a function of R1 , for the physical mixture and the alloy . The two lower sec ... shows that the distances differ by only 0.008 Å , so that either distance differs from the av- erage by only 0.004 Å ...
... show the normalized fitting error as a function of R1 , for the physical mixture and the alloy . The two lower sec ... shows that the distances differ by only 0.008 Å , so that either distance differs from the av- erage by only 0.004 Å ...
Page 151
... shows again that the platinum - iridium catalyst is approximately twice as active as the platinum - rhenium catalyst . The activity of the com- bined catalyst system is intermediate between the activities of the individual platinum ...
... shows again that the platinum - iridium catalyst is approximately twice as active as the platinum - rhenium catalyst . The activity of the com- bined catalyst system is intermediate between the activities of the individual platinum ...
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