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Hyperfine Interactions

, Volume 93, Issue 1, pp 1777–1782 | Cite as

Silica-supported copper-iron catalysts for hydrogenolysis reactions characterized by Mössbauer spectroscopy

  • J. van Beijnum
  • A. A. van der Horst
  • J. W. Geus
  • A. M. van der Kraan
Catalysis and Corrosion
  • 94 Downloads

Abstract

A special preparation procedure has been developed to provide a very uniform distribution of iron throughout the copper precursor supported on silica. The best performance for hydrogenolysis of methyl acetate has been obtained for a catalyst prepared in a one-step procedure, in which iron(III) and copper(II) were injected together into a suspension of silica at a constant pH level. It is found that the main part of the iron has been incorporated into the formed copper hydrosilicate. After reduction and under reaction conditions, only about 6% of the iron atoms are in the Fe0 state. This Fe0 is expected to be responsible for the enhancement of the catalyst activity in hydrogenation and hydrogenolysis reactions.

Keywords

Iron Copper Catalyst Activity Uniform Distribution Main Part 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • J. van Beijnum
    • 2
  • A. A. van der Horst
    • 1
  • J. W. Geus
    • 2
  • A. M. van der Kraan
    • 1
  1. 1.Interfacultair Reactor InstituutDelft University of TechnologyJB DelftThe Netherlands
  2. 2.Department of Inorganic ChemistryUniversity of UtrechtTB UtrechtThe Netherlands

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