Catalytic performance and mechanism for oxygenated compound formation for ethylene hydroformylation over supported Ru-M bimetallic carbonyl cluster-derived catalysts
- Jilin Univ., Changchun (China)
- Hokkaido Univ., Sapporo (Japan)
The catalytic performance in ethylene hydroformylation over SiO[sub 2], MgO, and carbon-supported Ru, Ru-Co, Ru-Mn, Ru-Cr, and Co carbonyl cluster-derived catalysts has been investigated, and it was found that the catalysts derived from Ru monometallic and Ru-Co bimetallic carbonyl clusters are active in ethylene hydroformylation. The presence of Co atoms in Ru-Co carbonyl clusters led to a remarkable increase in the rate of product formation, especially for oxygenates. The Ru-Mn bimetallic carbonyl cluster-derived catalyst showed similar conversion, but it exhibited poor activity and selectivity for oxygenates as compared with catalysts derived from Ru[sub 6]C(CO)[sub 17]. In contrast to the Ru[sub 6]C(CO)[sub 17] carbonyl cluster-derived catalyst, the Ru-Cr bimetallic carbonyl cluster-derived catalyst exhibited very low activity and selectivity for ethane and oxygenates, indicating that the Cr sites in Ru-Cr bimetallic carbonyl cluster-derived catalyst have a poisoning effect on ethylene hydroformylation. The nature of support has been shown to have a large influence on the catalytic activity and selectivity of the resulting catalyst. The effect of Co promotion in Ru-Co carbonyl clusters on silica and carbon was much stronger than that on MgO. The nature of these Ru-Co/SiO[sub 2] catalysts has been investigated by infrared and X-ray photoelectron spectroscopes. 70 refs., 14 figs., 6 tabs.
- OSTI ID:
- 7027899
- Journal Information:
- Journal of Catalysis; (United States), Vol. 147:2; ISSN 0021-9517
- Country of Publication:
- United States
- Language:
- English
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
10 SYNTHETIC FUELS
CHROMIUM COMPOUNDS
CATALYTIC EFFECTS
COBALT
COBALT COMPOUNDS
ETHYLENE
CARBONYLATION
MAGNESIUM OXIDES
RUTHENIUM
RUTHENIUM COMPOUNDS
SILICA
ABSORPTION SPECTROSCOPY
CARBON
CATALYST SUPPORTS
CATALYSTS
PHOTOELECTRON SPECTROSCOPY
X-RAY SPECTROSCOPY
ALKALINE EARTH METAL COMPOUNDS
ALKENES
CHALCOGENIDES
CHEMICAL REACTIONS
ELECTRON SPECTROSCOPY
ELEMENTS
HYDROCARBONS
MAGNESIUM COMPOUNDS
METALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFRACTORY METAL COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
100200 - Synthetic Fuels- Production- (1990-)