Elsevier

Applied Surface Science

Volume 26, Issue 1, June–July 1986, Pages 1-11
Applied Surface Science

XPS analysis of the oxidation reaction of ruthenium-chalcogenide photoelectrodes

https://doi.org/10.1016/0169-4332(86)90048-6Get rights and content

Abstract

The oxidation of RuS2, RuSe2, and RuTe2 single crystals and polycrystalline samples by air and electrochemical / photoelectrochemical means have been studied by XPS. The amount of oxidized species detected at the surface can be related to the tendency of the material to electrochemical corrosion. For RuS2, which is able to oxidize H2O to O2 only an oxidation of the top surface layer can be derived from the changes of the O1s is signal. For RuSe2 and RuTe2 Ru-oxide/hydroxide and chalcogenide-oxide species are detected in correspondence to their corrosion tendency. The results of the XPS analysis are discussed with respect to the electrocatalytic properties of the materials.

References (25)

  • H. Tributsch

    J. Photochem.

    (1985)
  • H. Ezzaouia et al.

    J. Electroanal. Chem.

    (1983)
  • D. Herm et al.

    Surface Sci.

    (1985)
  • W. Jaegermann et al.

    Surface Sci.

    (1986)
  • H.-M. Kühne et al.

    Chem. Phys. Letters

    (1984)
  • K. Kim et al.

    J. Catalysis

    (1974)
  • A. Müller et al.

    Coord. Chem. Rev.

    (1982)
  • E.M. Stuve et al.

    Surface Sci.

    (1981)
  • T.S. Wittrig et al.

    Surface Sci.

    (1981)
  • J.H. Scofield

    J. Electron Spectrosc. Related Phenomena

    (1976)
  • H. Tributsch

    Struct. Bonding

    (1982)
  • H. Tributsch, in: Modern Aspects of Electrochemistry, Ed. J.O.'M. Bockris, in...
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