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Skeletal reactions of hydrocarbons on Pt/WOx–(MoOx–ZrO2 superacid catalysts

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Abstract

1%Pt/WO3–(MoO3–ZrO2 superacid catalysts (d app of Pt ~16–20 Å) gave activity in hydrocarbon isomerization reactions which was much enhanced relative to more customary forms of supported platinum. This is ascribed to dual-functional action. Isomerization selectivity was particularly high for Pt/WOx–ZrO2. The dideuterium/cyclopentane exchange “chemical probe” reaction on identical catalysts (reduction temperature 548 K (10 h)) revealed the action of electron-deficient platinum sites. While there is no clear evidence from hydrocarbon hydrogenolysis activities for such sites, comparison with published literature suggests that the exposure of electron-deficient sites may now be sensitive to the choice of precursor compound used in catalyst preparation.

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Authors and Affiliations

  1. School of Chemistry, David Keir Building, Queen's University of Belfast, Belfast, BT9 5AG, UK

    Gerard Fitzsimons & John J. Rooney

  2. Department of Chemistry, University College, Belfield, Dublin, 4, Ireland

    John K.A. Clarke & Michael R. Smith

Authors
  1. Gerard Fitzsimons
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  2. John K.A. Clarke
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  3. Michael R. Smith
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  4. John J. Rooney
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Fitzsimons, G., Clarke, J.K., Smith, M.R. et al. Skeletal reactions of hydrocarbons on Pt/WOx–(MoOx–ZrO2 superacid catalysts. Catalysis Letters 52, 69–72 (1998). https://doi.org/10.1023/A:1019079622031

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  • DOI: https://doi.org/10.1023/A:1019079622031

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