担载Ru-Co原子簇催化剂在乙烯甲酰化中的催化行为

doi:10.3866/PKU.WHXB19940811

Abstract

Abstract:

A series of catalysts such as Ru/SiO2, Co/SiO2 and Ru-Co/SiO2 were prepared by using the precursors of Ru, Co and Ru-Co carbony1 clusters. The catalytic performance in hydroformylation of ethylene showed that the activity and selectivity on a series of RuCo/Sio2 for C3-oxygenated products are much higher than those on Ru/SiO2 and Co/SiO2 catalysts. The adsorption of CO on reduced Ru-Co/SiO2 exhibited a hand at l680cm-1,which was assigned to the C- and O- ended CO chemisorbed on Ru-Co/SiO2 catalysts. The IR spectra of the reaction of C2H4+CO+H2 with Ru-Co/SiO2 catalysts showed bands at 1582 and 1555cm-1, which may possibly be assigned to formyl and C3-acyl species on the surface, they play very important role for the formation of C3-oxygenates in hydroformylation of ethylene.

Key words: Ru-Co cluster, Hydroformylation of ethylene, Surface, IR

Xiao Feng-Shou. Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts[J]. Acta Phys. -Chim. Sin. 1994, 10(08), 724-727. doi: 10.3866/PKU.WHXB19940811

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Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts

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