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

A. Berkó, Tibor I. Tarnóczi, F. Solymosi

Research output: Contribution to journalArticle

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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

Fingerprint

Methanol
methyl alcohol
Carbon Monoxide
Potassium
potassium
desorption
interactions
Thermal desorption
Photoelectron spectroscopy
Ultraviolet spectroscopy
Desorption
photoelectric emission
Decomposition
decomposition
Adsorption
adsorption
spectroscopy
Temperature
temperature

ASJC Scopus subject areas

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

Cite this

Interaction of CH3OH with K-dosed Rh(111) surfaces at 300 K. / Berkó, A.; Tarnóczi, Tibor I.; Solymosi, F.

In: Surface Science, Vol. 189-190, No. C, 02.10.1987, p. 238-244.

Research output: Contribution to journalArticle

Berkó, A. ; Tarnóczi, Tibor I. ; Solymosi, F. / Interaction of CH3OH with K-dosed Rh(111) surfaces at 300 K. In: Surface Science. 1987 ; Vol. 189-190, No. C. pp. 238-244.
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