Insensitivity of trapping at surfaces to molecular vibration

被引：44

作者：

Wodtke, AM ^{[1
]}

Huang, YH

Auerbach, DJ

机构：

[1] Univ Calif Santa Barbara, Dept Chem & Biochem, 4623 C Phys Sci, Santa Barbara, CA 93106 USA

[2] Oplink Commun, Fremont, CA 94538 USA

[3] Hitachi Global Technol, San Jose, CA 95120 USA

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 413卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2005.06.031

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：

We have measured the trapping probability of NO(v = 0 and v = 2) on Au(111) as a function of translational energy of incidence. The range of translational and vibrational energies probed is comparable, yet the influence of the two types of motion is very different; 0.46 eV of translational energy is sufficient to completely suppress trapping, but the 0.46 eV of vibrational energy in NO(v = 2) has no measurable effect. The insensitivity of trapping probabilities to vibrational energy stands in sharp contrast to the strong sensitivity of direct activated dissociative adsorption to vibrational energy. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：326 / 330

页数：5

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