EXAFS, XANES and TEM studies of Pt-Ni bimetallic catalysts

A. S. Bommannavar, P. A. Montano, M. J. Yacamán

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Pt-Ni bimetallic particles have been studied by EXAFS and XANES techniques and electron diffraction. The near edge absorption measurements show conclusively that an alloy is formed in this system. By plotting the change in nearest neighbor distance as a function of concentration, it is shown that the linear relationship between concentration and interatomic distance (Vegard's law) which is commonly observed in bulk alloys is not followed in the case of small particles.

Original languageEnglish (US)
Pages (from-to)426-435
Number of pages10
JournalSurface Science
Issue numberPART 1
StatePublished - Jun 3 1985
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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