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 28
Page 91
... values of H / M and O / M by about 10 % . For iridium dispersed on alumina , the data on the catalysts calcined at 260-270 ° C indicate that more than one atom of hydrogen or one molecule of carbon monoxide is adsorbed per surface ...
... values of H / M and O / M by about 10 % . For iridium dispersed on alumina , the data on the catalysts calcined at 260-270 ° C indicate that more than one atom of hydrogen or one molecule of carbon monoxide is adsorbed per surface ...
Page 105
... values of the wave vector K with values of the function AR ( K ) X sin [ 2K1R + 28 ( K1 , ) ] from Eq . 4.14 . To determine values of interatomic distances we return to Eq . 4.13 . The platinum EXAFS function is given by the equation X1 ...
... values of the wave vector K with values of the function AR ( K ) X sin [ 2K1R + 28 ( K1 , ) ] from Eq . 4.14 . To determine values of interatomic distances we return to Eq . 4.13 . The platinum EXAFS function is given by the equation X1 ...
Page 107
... values obtained for the distance Rpt for various values for R. The left - hand sections of the figure refer to the physical mixture , which was diluted with alumina to give a sample containing 10 wt % each of plati- num and iridium ...
... values obtained for the distance Rpt for various values for R. The left - hand sections of the figure refer to the physical mixture , which was diluted with alumina to give a sample containing 10 wt % each of plati- num and iridium ...
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