Reaction Kinetics and Catalysis Letters

, Volume 62, Issue 2, pp 203–208 | Cite as

Comparative study of H2S and SO2 adsorption on polycrystalline copper by surface potential measurements

  • A. Galtayries
  • J. P. Bonnelle
  • J. Grimblot
Article
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Abstract

Surface Potential Variations ΔΦ and XPS show the presence of S(a) on Cu after exposure to H2S. On such a presulfided state, H2S adsorbs molecularly and reversibly at room temperature. Exposure to SO2 mainly leads to the formation of S(a) and SOx(a) while molecular adsorption has not been evidenced at room temperature.

Keywords

Molecular adsorption dissociative adsorption copper surface sulfidation 
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Copyright information

© Akadémiai Kiadó 1997

Authors and Affiliations

  • A. Galtayries
    • 1
  • J. P. Bonnelle
    • 1
  • J. Grimblot
    • 1
  1. 1.Laboratoire de Catalyse Hétérogéne et Homogéne, URA CNRS 402Université des Sciences et Technologies de LilleVilleneuve d'Ascq CédexFrance

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