Selective Hydrogenation of Crotonaldehyde over Pt Derived Catalysts

C.G. Raab, M. Englisch, T.B.L.W. Marinelli, J.A. Lercher

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30 Citations (Scopus)

Abstract

The hydrogenation of crotonaldehyde was studied over five catalysts with platinum as the major catalytically active component. The catalytic activity for hydrogenation of the C=O bond decreased in the order PtGa/SiO2>Pt/Ti02>PtSn/TiO2>PtNi/Si02. Pt/SiOa was one order of magnitude less active than the other catalysts investigated and catalyzed only the hydrogenation of the C=C bond. Two different types of sites were concluded to be active for C=O bond hydrogenation, i.e., (i) the metal-oxide-interface (i.e. Pt-TiOx and Pt-GaOx) and (ii) bimetallic moieties as in Pt-Sn and Pt-Ni with a small positive charge on the less noble constituent. Hydrogenation of the C=C bond was concluded to occur primarily on the pure metal surfaces.

Original languageEnglish
Pages (from-to)211-218
Number of pages8
JournalStudies in surface science and catalysis
Volume78
DOIs
Publication statusPublished - 1 Jan 1993
Externally publishedYes

Keywords

  • n/a OA procedure

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