Associative desorption of adsorbed oxygen promoted by translational energy of incident O2 molecules

被引：1

作者：

Yokoyama, Yuta ^{[1
]}

Hori, Tsuyoshi ^{[1
]}

Okada, Ryuta ^{[1
]}

Harimoto, Daiki ^{[1
]}

Sugawara, Chihiro ^{[1
]}

Yamada, Yoichi ^{[1
]}

Sasaki, Masahiro ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

来源：

SURFACE SCIENCE | 2009年 / 603卷 / 18期

关键词：

Oxygen; Platinum; Incident energy; Nonthermal processes; DISSOCIATIVE CHEMISORPTION; PT(111) SURFACE; KINETIC-ENERGY; ADSORPTION; PRECURSORS; DYNAMICS; SPECTROSCOPY; MIGRATION; N-2; CH4;

D O I：

10.1016/j.susc.2009.07.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Effects of the translational energy of incident oxygen molecules on surface processes from dissociative adsorption to subsequent associative desorption on Pt(1 1 1) have been investigated by means of supersonic molecular beam scattering. The reaction rate of associative desorption increases with the incident translational energy. The enhanced associative desorption can be attributed to nonthermal diffusion of dissociated oxygen, promoted by the translational energy of incoming molecules. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2845 / 2848

页数：4

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