Selectivity, Activity and Metal-Support Interactions of Group VIII Bimetallic Catalysts: Final Technical Progress Report, 15 January 1985-15 July 1987

摘要

The nature of metal-oxide interaction as exemplified by Rh/TiO sub 2 and characterized by entended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) analyses is reviewed. The catalytic consequences of this interaction between a group VIII metal and a reducible support are reviewed by reference to the differences between different group VIII metals (Rh and Pt) supported on TiO sub 2 and the same metal (Rh) supported on different reducible supports (TiO sub 2 and V sub 2 O sub 3 ). The effect of different silica supports on the metal-metal interaction (Ru-Cu cluster morphology) and on chemisorption and catalytic activity is briefly outlined. Oxide-oxide interaction (MoO sub 3 and SiO sub 2 interaction with Al sub 2 O sub 3 support) investigated by NMR is also addressed. 67 refs., 2 figs. (ERA citation 13:022181)