Journal
CHINESE JOURNAL OF CATALYSIS
Volume 31, Issue 6, Pages 626-630Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(09)60077-2
Keywords
copper; magnesia; particle size; transfer dehydrogenation; 1-octanol; 1-octanal
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Cu/MgO catalysts with different Cu particle sizes were prepared by a precipitation-deposition method and investigated for their activity in the transfer dehydrogenation of alcohols to carbonyl compounds. They were highly active for the conversion of primary aliphatic alcohols, e.g. 1-octanol. With increasing Cu particle size from 4.6 to 7.4 nm, the aldehyde yield decreased from 65% 10 55%, which showed a size effect. The copper particle abstracted an alpha-hydrogen from the reactive alkoxide intermediate formed on the surface of MgO and simultaneously catalyzed the hydrogenation of styrene.
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