Surface composition of Pt-Pd alloys treated in hydrogen

A. Szabo, Z. Paál, A. Szász, J. Kojnok, D. J. Fabian

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Pd enrichment is observed in Pd-Pt alloy sheets when heated in He and in H2. The surface composition was monitored by soft X-ray emission spectroscopy (SXES) and by work function measurements. A regular solution model is used to calculate the expected composition of the surface atomic layers, with and without adsorbed hydrogen, and the calculated and measured values for Pd-enrichment are compared. The possible effect of subsurface adsorbed hydrogen is discussed.

Original languageEnglish
Pages (from-to)77-83
Number of pages7
JournalApplied Surface Science
Volume40
Issue number1-2
DOIs
Publication statusPublished - Nov 1 1989

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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