Hydrocarbon trapping and condensation on Pt(111)

L. Q. Jiang, Bruce E. Koel

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

A direct, reflected beam method under ultrahigh-vacuum conditions was used to measure the sticking coefficient of several small hydrocarbon molecules (methylcyclohexane, cyclohexane, toluene, benzene, and methanol) on clean and adsorbate-covered Pt(111) surfaces and on the molecular solid phases that can be formed at temperatures below that required for multilayer sublimation. We find that the sticking coefficient for all of these molecules on the clean Pt(111) surface and the molecular solid phase at 100 K is unity. The simple, classical hard-cube model provides a useful way to understand this behavior.

Original languageEnglish (US)
Pages (from-to)8694-8697
Number of pages4
JournalJournal of physical chemistry
Volume96
Issue number22
DOIs
StatePublished - 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry

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