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Bimetallic Cobalt/Rhenium Systems: Preferred Position of Rhenium Through an Interdisciplinary Approach

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Abstract

Some commercial type Fischer–Tropsch catalysts are based on rhenium-doped cobalt. In an attempt to elucidate the preferred position of rhenium in the cobalt matrix, we have carried out experimental Low Energy Ion Scattering investigations of oxidized and reduced catalyst samples and computational DFT investigations of bimetallic Co/Re clusters. The results indicate that rhenium preferentially occupies subsurface sites, where it can coordinate to a maximum number of cobalt atoms.

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Notes

  1. For a more general view see [10].

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Acknowledgements

The authors wish to thank Prof. Unni Olsbye for valuable discussions. Thanks are due to Arie Knoester for running the LEIS experiment. A generous grant of computer time from the Norwegian Research Council (NOTUR project, account No. NN2923K, http://www.notur.no), and a research grant from Statoil are both gratefully acknowledged. V.B. wishes to thank the VISTA foundation (http://www.vista.no) for a postdoctoral fellowship.

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Authors and Affiliations

  1. Department of Chemistry, University of Oslo, Blindern, P.O. box 1033, Oslo, 0315, Norway

    Vebjørn Bakken

  2. Department of Hydrocarbon Process Chemistry, SINTEF Materials and Chemistry, Blindern, P.O. Box 124, Oslo, 0314, Norway

    Vebjørn Bakken & Ole Swang

  3. Department of Process Technology, SINTEF Materials and Chemistry, Trondheim, 7465, Norway

    Edvard Bergene

  4. Statoil Research Centre, Trondheim, 7005, Norway

    Edvard Bergene & Erling Rytter

Authors
  1. Vebjørn Bakken
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  2. Edvard Bergene
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  3. Erling Rytter
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  4. Ole Swang
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Correspondence to Ole Swang.

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Bakken, V., Bergene, E., Rytter, E. et al. Bimetallic Cobalt/Rhenium Systems: Preferred Position of Rhenium Through an Interdisciplinary Approach. Catal Lett 135, 21–25 (2010). https://doi.org/10.1007/s10562-009-0089-6

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  • DOI: https://doi.org/10.1007/s10562-009-0089-6

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