The desorption and dissociation of ethylene (C2H4) on Ru(10(1)over-bar0) surface

被引：5
|
作者：
Zhuang, YY [1 ]
Wu, Y [1 ]
Zhang, JH [1 ]
Zhang, HJ [1 ]
Wang, J [1 ]
Li, HY [1 ]
He, PM [1 ]
Bao, SN [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
来源：
ACTA PHYSICA SINICA | 2000年 / 49卷 / 10期
关键词：
ethylene; Ru(10(1)over-bar0)surface; adsorption and dissociation;
D O I：
10.7498/aps.49.2101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The ethylene (C2H4) adsorbed on Ru(10 (1) over bar 10) surface has been studied by X-ray photoelectron spectroscopy (XPS), thermal desorption spectroscopy (TDS) and ultraviolet photoelectron spectroscopy (UPS). The results show that ethylene absorbs in molecular state on Ru(10 (1) over bar 0) surface stably below 200 K. The dehydrogenation of ethylene occurs at 200 K. The main product of the dehydrogenation of the absorbed ethylene is the acetylene (C2H2). After the dehydrogenation of the absorbed ethylene,the Cls shifts 0.3 eV to low binding energy lever,and the binding energies of sigma(CC) and sigma(CH) bond have an increase of 0.5eV and 1.1eV respectively.
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收藏
页码：2101 / 2105
页数：5
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