Citation: Xiao Feng-Shou. Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts[J]. Acta Physico-Chimica Sinica, 1994, 10(08): 724-727. doi: 10.3866/PKU.WHXB19940811
English
Catalytic Performance in Ethylene Hydroformylation over Silica Supported Ru-Co Bimetallic Carbonyl Cluster-Derived Catalysts
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.
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Key words:
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Ru-Co cluster
- / Hydroformylation of ethylene
- / Surface
- / IR
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