Anisotropic velocity distribution of desorbing product in carbon monoxide oxidation on palladium (110)

Matsushima, Tatsuo; Shobatake, Kosuke; Ohno, Yuichi; Tabayashi, Kiyohiko

Anisotropic velocity distribution of desorbing product in carbon monoxide oxidation on palladium (110)

Matsushima, Tatsuo; Shobatake, Kosuke; Ohno, Yuichi et al.

The Journal of Chemical Physics --, 1992, 97(4), 2783-2789

Permalink : https://hdl.handle.net/2115/5516

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アクセス権	open access
URI	https://hdl.handle.net/2115/5516
タイトル	Anisotropic velocity distribution of desorbing product in carbon monoxide oxidation on palladium (110)
著者	Matsushima, Tatsuo ; Shobatake, Kosuke ; Ohno, Yuichi ; Tabayashi, Kiyohiko
e-Rad_Researcher 30002116 著者名 Matsushima, Tatsuo 松島, 龍夫
著者名 Shobatake, Kosuke
著者名 Ohno, Yuichi
著者名 Tabayashi, Kiyohiko
言語	英語
発行日	1992-08
出版者	American Institute of Physics
収録物名	The Journal of Chemical Physics --
巻(号)	97(4)
ページ	2783-2789
抄録	Significant anisotropy was found in the velocity distributions of desorbing product CO2 from a Pd(110) surface. The velocity distributions were determined by a cross-correlation time-of-flight technique combined with angle-resolved thermal desorption. Heating the coadlayer of CO and oxygen produces five peaks in the CO2 formation spectrum; P1– (around 420 K), P2– (~370 K), P3– (~300 K), P4– (~230 K), and P5–CO2 (~170 K). The translational temperature of each CO2 is much higher than the corresponding surface temperature, and increases in the sequence of P1– <P2– <P3– <P4– <P5–CO2. It decreases rapidly with an increase in the desorption angle perpendicular to the surface trough and more slowly parallel to it. This anisotropy is correlated to the reaction site symmetry.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 1992 American Institute of Physics
PISSN	0021-9606
関連情報	URI http://www.aip.org/
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.463070