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Characterization of graphite-supported platinum catalysts by electrochemical methods and XPS

  • F.A. Bruijn, de
  • , G.B. Marin
  • , J.W. Niemantsverdriet
  • , W.H.M. Visscher
  • , J.A.R. Veen, van

    Research output: Contribution to journalArticleAcademicpeer-review

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    Abstract

    XPS and cyclic voltammetry were used to characterize 4.9 wt.% platinum-on-graphite catalysts used for the oxidn. with O2 of Me a-D-glucoside in aq. soln. Cyclic voltammetry indicates that a surface oxidic layer is formed on the Pt particles upon exposure to air. This oxidn. could not be confirmed by XPS. The oxidn. of Me a-D-glucoside in the liq. phase is accompanied by growth of the Pt particles. Open-circuit potential measurements indicated an increasing O coverage of the Pt surface during reaction.
    Original languageEnglish
    Pages (from-to)537-542
    JournalSurface and Interface Analysis
    Volume19
    Issue number1-12
    DOIs
    Publication statusPublished - 1992

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