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The structure of the cobalt sulfide phase in carbon-supported Co and Co-Mo sulfide catalysts as studied by exafs and xanes

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Abstract

An X-ray absorption spectroscopy study has been carried out on a sulfided Co/C and a Co-Mo/C catalyst, consisting of a fully sulfided Co-Mo-S phase. By comparing the EXAFS and XANES spectra of the catalysts with those of pure Co9S8 and CoS2 reference compounds, it is shown that the cobalt ions in the Co-Mo-S phase have an octahedral-like sulfur coordination while the cobalt ions in the Co/C catalyst have a larger fraction of octahedral cobalt than Co9S8.

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Authors and Affiliations

  1. Laboratory for Inorganic Chemistry and Catalysis, Eindhoven, University of Technology, P.O. Box 513, 5600, MB Eindhoven, The Netherlands

    S. M. A. M. Bouwens, D. C. Koningsberger, V. H. J. de Beer & R. Prins

  2. Technisch-Chemisches Laboratorium, ETH-Zentrum, 8092, Zürich, Switserland

    R. Prins

Authors
  1. S. M. A. M. Bouwens
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  2. D. C. Koningsberger
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  3. V. H. J. de Beer
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  4. R. Prins
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Bouwens, S.M.A.M., Koningsberger, D.C., de Beer, V.H.J. et al. The structure of the cobalt sulfide phase in carbon-supported Co and Co-Mo sulfide catalysts as studied by exafs and xanes. Catal Lett 1, 55–59 (1988). https://doi.org/10.1007/BF00765354

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  • DOI: https://doi.org/10.1007/BF00765354

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