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Catalysis Letters

, Volume 10, Issue 3–4, pp 137–148 | Cite as

Tungsten carbides as substitutes of platinoids in heterogeneous catalysis I. The effect of surface composition on the reactivity of methylcyclopentane on tungsten carbides

  • V. Keller
  • M. Cheval
  • M. Vayer
  • R. Ducros
  • G. Maire
Article

Abstract

Reactions of methylcyclopentane on tungsten carbides show that in presence of oxygen the extensive hydrogenolysis is inhibited in favour of ring enlargement and ring opening via a bifunctional mechanism due to the coexistence of surface acid-rearrangement and hydrogenation-dehydrogenation sites. The oxycarbidic materials are very active and selective in skeletal rearrangement of hydrocarbons.

Keywords

Methylcyclopentane reactivity tungsten carbides heterogeneous catalysis surface composition hydrogenolysis 

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Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1991

Authors and Affiliations

  • V. Keller
    • 1
  • M. Cheval
    • 1
  • M. Vayer
    • 1
  • R. Ducros
    • 1
  • G. Maire
    • 1
  1. 1.Laboratoire de Catalyse et Chimie des Surfaces U.R.A. 423 du C.N.R.S.Université Louis PasteurStrasbourgFrance

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