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 60
... absorption of X - rays by matter other than monatomic gases , a plot of absorption coefficient vs. X - ray energy exhibits an extended fine structure on the high energy side of an absorption edge . The fine structure constituting EXAFS ...
... absorption of X - rays by matter other than monatomic gases , a plot of absorption coefficient vs. X - ray energy exhibits an extended fine structure on the high energy side of an absorption edge . The fine structure constituting EXAFS ...
Page 71
... absorption edge since the high energy of the K edge ( 73.9 KeV ) was not accessible in our experiments . The nature of the X - ray absorption spectrum in the region of the L , edge is illustrated in Figure 4.11 by data on pure metallic ...
... absorption edge since the high energy of the K edge ( 73.9 KeV ) was not accessible in our experiments . The nature of the X - ray absorption spectrum in the region of the L , edge is illustrated in Figure 4.11 by data on pure metallic ...
Page 99
... absorption spectrum at 100 ° K in the region of the L absorption edges of iridium and platinum is given in Figure ... edge of irid- ium is observable to energies of 1200-1300 eV beyond the edge , there is overlap of the EXAFS associated ...
... absorption spectrum at 100 ° K in the region of the L absorption edges of iridium and platinum is given in Figure ... edge of irid- ium is observable to energies of 1200-1300 eV beyond the edge , there is overlap of the EXAFS associated ...
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