Site-switching for CO2 formation and structural transformation of (1×2)⇄(1×1) in steady-state CO oxidation on Pt (1 1 0)

Md Golam Moula, Asht B.P. Mishra, Izabela Rzeźnicka, Mikhail U. Kislyuk, Suwen Liu, Yuichi Ohno, Tatsuo Matsushima

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The angular and velocity distributions of desorbing product CO2 were studied in steady-state CO oxidation on Pt(110) by means of cross-correlation time-of-flight techniques. In the active region where the reaction was first order in CO, the angular distribution in the (001) plane was split into two-directional lobes collimated at ±25° from the surface-normal direction, indicating the CO2 formation on inclined (111) terraces. The translational temperature was maximized at these collimation angles, reaching about 1820 K. On the other hand, in a limited range of the inhibited region, where CO retarded the reaction, CO2 desorption sharply collimated along the surface-normal direction, suggesting CO2 formation on flat (1×1) domains.

本文言語English
ページ(範囲)225-231
ページ数7
ジャーナルChemical Physics Letters
341
3-4
DOI
出版ステータスPublished - 2001 6 22
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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