物理化学学报 >> 1996, Vol. 12 >> Issue (11): 1001-1005.doi: 10.3866/PKU.WHXB19961109

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CO在Cs/Ru(1010)表面上吸附的ARUPS研究

李海洋,鲍世宁,张训生,范朝阳,冯小松,徐亚伯   

  1. 浙江大学物理系,杭州 310027
  • 收稿日期:1996-04-17 修回日期:1996-06-03 发布日期:1996-11-15
  • 通讯作者: 李海洋

Investigation of CO Adsorption on Cs/Ru(1010) Surface Using ARUPS

Li Hai-Yang,Bao Shi-Ning,Zhang Xun-Sheng,Fan Chao-Yang,Feng Xiao-Song,Xu Ya-Bo   

  1. Department of Physics,Zhejiang University,Hangzhou 310027
  • Received:1996-04-17 Revised:1996-06-03 Published:1996-11-15
  • Contact: Li Hai-Yang

关键词: 角分辨紫外光电子谱(ARUPS), 一氧化碳(CO)吸附, Cs/Ru(1010)表面, 倾斜吸附

Abstract:

CO adsorption on Ru(100) and Cs/Ru(10O) surfaces has been investigated using ARUPS, at low temperature 150K. The 5σ+1π and 4σ levels of CO molecule were found in angle-rcsolved UP spectra showing that CO is in molecular adsorption states on clean and Cs precovercd Ru(1010). The dependence of CO 4σ intensity on incident angle suggests that adsorbed CO stands upright on clean Ru(1010) surface; But adsorbed CO, with a short-range interaction with Cs atom [15], does not stand upright and tilts in <1210> azimuth on a Cs-precovered Ru(1010) surface.

Key words: Angle-resolved ultraviolet photoemission spectrum, CO adsorption, Cs/Ru(1010) surface, Tilt adsorption