X-ray photoelectron spectroscopic investigation of electrochemically oxidised and reduced platinum surfaces

L. Kövér, Cs Ujhelyi, D. Berényi, D. Varga, I. Kádár, Á Kövér, J. Miller

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Abstract

The growing of oxide layer with the time of anodic oxidation in 1M, 3.5M and 8.8M perchloric acid solutions has been investigated by XPS on smooth and platinised Pt surfaces. Pure metallic Pt surfaces were prepared by acidic digestion, ignition and cathodic reduction, and their electron spectra have been compared. The presence of a single species, probably PtO, can be evaluated from the XPS measurements. Calculated values of PtO film thickness for different time intervals of electrolytic oxidation are given at various concentrations of HClO4.

Original languageEnglish
Pages (from-to)201-214
Number of pages14
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume14
Issue number3
DOIs
Publication statusPublished - 1978

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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