The effect of sulphur containing pollutants on the oxidation activity of precious metals used in vehicle exhaust catalysts

V. Meeyoo, D. L. Trimm*, N. W. Cant

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Citations (Scopus)

Abstract

The effect of traces of hydrogen sulphide and of sulphur dioxide on the oxidation of methane over supported precious metals has been examined. Both gases inhibited catalytic oxidation over Pd and Rh, apparently as a result of sulphate formation. However, the catalytic activity of platinum was slightly enhanced by the pollutants.

Original languageEnglish
JournalApplied Catalysis B: Environmental
Volume16
Issue number2
DOIs
Publication statusPublished - 27 Mar 1998

Keywords

  • Methane oxidation over precious metals
  • Palladium
  • Platinum
  • Precious metal poisoning
  • Rhodium
  • Sulphur poisoning

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