Support-mediated alkane activation over Pt-SO4/Al2O3 catalysts

David E. Gawthrope, Adam F. Lee, Karen Wilson

Research output: Contribution to journalArticle

Abstract

Sulphate-promoted alkane combustion has been investigated over a series of Pt/Al2O3 catalysts using pre-sulphated alumina supports. Catalyst sulphation greatly enhanced ethane combustion over Pt/Al2O3, and also improved methane and propane light-off performance. Catalyst activity increased with Pt loading, however the magnitude of sulphate promotion was independent of Pt loading under oxidising conditions, but scaled with alkane chain length. Propane combustion activity was directly proportional to the surface coverage of aluminium sulphate sites; support-mediated alkane activation is the dominant process in sulphate promotion.
Original languageEnglish
Pages (from-to)25-29
Number of pages4
JournalCatalysis Letters
Volume49
Issue number1-2
DOIs
Publication statusPublished - 1 Apr 2004

Keywords

  • catalysis
  • platinum
  • alumina
  • oxidation
  • sulphate
  • alkane
  • ethane

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