Acta Phys. -Chim. Sin. ›› 1994, Vol. 10 ›› Issue (02): 121-125.doi: 10.3866/PKU.WHXB19940206

• ARTICLE • Previous Articles     Next Articles

Adsorption and Diffusion of Hydrogen Atom on Pd(997) Step Surface

Wang Ze-Xin, Hao Ce, Zhang Feng, Zhang Wen-Xia, Chen Zong-Qi   

  1. Department of Applied Chemistry, Qingdao Institute of Chemical Technology, Qingdao 266042
  • Received:1992-06-30 Revised:1992-11-24 Published:1994-02-15
  • Contact: Wang Ze-Xin

Abstract:

The adsorption and insion of hydrogen atom on Pd(997) step surface was studied by the pair-potential method. Calculated results show that the most stable adsorption state is one of the hydrogen atoms being adsorbed under the step. New vibration modes of the adsorption states were analyzed theoretically. The role of step is that the trapping potential wells are formed for the diffusion of a hydrogen atom on the lower terrace and the reflective potential is set up for that on the upper terrace.

Key words: Pd(997) step surface system, Pair-potential method, Adsorption and diffusion