Acetaldehyde hydrogenation over a Cu/SiO2 catalyst

A. K. Agarwal*, M. S. Wainwright, D. L. Trimm, N. W. Cant

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    The hydrogenolysis of ethyl acetate on Raney copper catalysts has been previously suggested to proceed via dissociative adsorption followed by hydrogenation of adsorbed fragments. As part of a programme to study ester hydrogenolysis, the hydrogenation of acetaldehyde, which could be suggested to involve similar adsorbed fragments, has been examined. The kinetics of the reactions of ester and aldehyde with hydrogen are found to be different, and isotopic labelling techniques show that the intermediates are probably different. Acetaldehyde hydrogenation appears to involve adsorption through oxygen followed by attachment of adsorbed atomic hydrogen to the oxygen. Aldehyde hydrogenation is much faster than ester hydrogenolysis, by a factor of 6000, under identical conditions.

    Original languageEnglish
    Pages (from-to)247-254
    Number of pages8
    JournalJournal of Molecular Catalysis
    Volume45
    Issue number2
    DOIs
    Publication statusPublished - 9 May 1988

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