Orientation dependence in the dissociative scattering of hydrogen molecules from metal surfaces |
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| Affiliation: | 1. Department of Chemistry, University of Saskatchewan, Saskatoon, SK. S7N 5C9, Canada;2. Department of Chemistry, The Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan;1. School of Materials Science and Engineering, South China University of Technology, 381 Wushan, Guangzhou 510640, China;2. Guangzhou Grandtech Co., Ltd., 22-1 Jungong Road, Guangzhou 510630, China;3. School of Automotive and Mechanical Engineering, South China University of Technology, 381 Wushan, Guangzhou 510640, China;4. Smart Machinery & Surface Technology Division, Hong Kong Promotion Center, 78 Tat Chee Avenue, Hong Kong, China |
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| Abstract: | ![]()
We investigate the molecular orientation dependence of the dissociation probability of neutral molecular hydrogen scattered from metal surfaces. The probability distributions are calculated in the cases when positive and negative hydrogen ions (ion pair) are formed and when two neutral hydrogen atoms are formed. On the basis of numerical results, it is found that a parallel orientation preference of probability distributions shows a tendency to be suppressed in the case when an ion pair is formed as compared with the case when two neutral hydrogen atoms are formed. |
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