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
... vector K , which is given by the equation K = ( 2mE ) 1 / 2 / ħ ( 4.1 ) where m is the mass of the electron , ħ is Planck's constant divided by 2π , and E is the kinetic energy of the photoelectron . The energy E is the difference ...
... vector K , which is given by the equation K = ( 2mE ) 1 / 2 / ħ ( 4.1 ) where m is the mass of the electron , ħ is Planck's constant divided by 2π , and E is the kinetic energy of the photoelectron . The energy E is the difference ...
Page 99
... vector K ( at 100 ° K ) for the extended fine structure beyond the platinum L , edge , where the func- tion x + ( K ) is equal to the sum of the EXAFS function X ( K ) and an additional function I ( K ) arising from the overlapping ...
... vector K ( at 100 ° K ) for the extended fine structure beyond the platinum L , edge , where the func- tion x + ( K ) is equal to the sum of the EXAFS function X ( K ) and an additional function I ( K ) arising from the overlapping ...
Page 104
... vector K calculated from the threshold energy EPt associ- ated with the platinum L , edge and the wave vector K1 , calculated from the threshold energy Eo " associated with the iridium L edge ( 48 ) . The required relation is ||| K2 ...
... vector K calculated from the threshold energy EPt associ- ated with the platinum L , edge and the wave vector K1 , calculated from the threshold energy Eo " associated with the iridium L edge ( 48 ) . The required relation is ||| K2 ...
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