Interaction of CH3OH with K-dosed Rh(111) surfaces at 300 K

András Berkó, Tibor I. Tarnóczi, Frigyes Solymosi

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The adsorption and decomposition of methanol on clean and K-predosed Rh(111) surfaces is studied using thermal desorption and ultraviolet photoemission spectroscopy. Methanol is an unstable compound on a clean Rh(111) and decomposes completely to adsorbed H and CO at 300 K. However, preadsorbed K significantly affects the behavior of adsorbed methanol on the Rh surface. At lower K coverage its effect is primarely exhibited by higher desorption temperatures of H2 and CO. At higher K coverages, when K exhibits a more metallic character, methanol directly interacts with potassium to yield potassium methoxide which is stable up to 420 K.

Original languageEnglish
Pages (from-to)238-244
Number of pages7
JournalSurface Science
Volume189-190
Issue numberC
DOIs
Publication statusPublished - Oct 2 1987

ASJC Scopus subject areas

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

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