Characterization of small platinum particles supported on graphite by electron microscopy

M. José Yacamán, J. Manuel Dominguez

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Characterization of small platinum particles in the Pt/graphite catalyst is done using high-resolution dark-field electron microscopy and single-particle electron diffraction. Two types of hexagonal-shaped particles were found. Both are shown to correspond to a three-dimensional cubo-octahedral shape. The first type has a (111) face in contact with the (0001) face of the graphite surface. The second type has a (110) face parallel to the (0001) face of the support surface. The faceted Pt particles are bounded by (100) and (111) crystallographic planes, which provide specific sites for a catalytic reaction.

Original languageEnglish (US)
Pages (from-to)213-222
Number of pages10
JournalJournal of Catalysis
Volume64
Issue number1
DOIs
StatePublished - Jul 1980
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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