Active phase for inclined CO2 desorption on Rh(110) in steady-state CO oxidation

Izabela Irena Rzeznicka, Tatsuo Matsushima

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The angular and velocity distributions of desorbing CO2 and LEED spot intensities were examined in steady-state CO oxidation on Rh(110) and Pd(110). On Rh(110), in the limited CO pressure range, the angular distribution splits into bi-directional lobes collimating at ±24° off normal along the [001] direction and the meta-stable (1×2) structure stabilized by oxygen is maximized. On the other hand, neither inclined CO2 desorption nor meta-stable (1×2) was found on Pd(110).

Original languageEnglish
Pages (from-to)279-285
Number of pages7
JournalChemical Physics Letters
Volume377
Issue number3-4
DOIs
Publication statusPublished - 2003 Aug 15
Externally publishedYes

Fingerprint

Angular distribution
Carbon Monoxide
Desorption
angular distribution
desorption
Oxidation
oxidation
Velocity distribution
lobes
velocity distribution
Oxygen
oxygen
Direction compound

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

Cite this

Active phase for inclined CO2 desorption on Rh(110) in steady-state CO oxidation. / Rzeznicka, Izabela Irena; Matsushima, Tatsuo.

In: Chemical Physics Letters, Vol. 377, No. 3-4, 15.08.2003, p. 279-285.

Research output: Contribution to journalArticle

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AB - The angular and velocity distributions of desorbing CO2 and LEED spot intensities were examined in steady-state CO oxidation on Rh(110) and Pd(110). On Rh(110), in the limited CO pressure range, the angular distribution splits into bi-directional lobes collimating at ±24° off normal along the [001] direction and the meta-stable (1×2) structure stabilized by oxygen is maximized. On the other hand, neither inclined CO2 desorption nor meta-stable (1×2) was found on Pd(110).

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