Hydrogenation and H-D exchange reactions of ethylene on fcc ultra-thin Fe films grown on a Rh(001) surface

被引：1
|
作者：
Egawa, C [1 ]
Oki, S [1 ]
Murata, Y [1 ]
机构：
[1] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN
来源：
SURFACE SCIENCE | 1996年 / 357卷 / 1-3期
关键词：
iron; isotopic exchange; metallic films; rhodium; single crystal surfaces; surface chemical reaction; thermal desorption;
D O I：
10.1016/0039-6028(96)00267-1
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：
Hydrogenation and H-D exchange reactions of ethylene on 1 ML (monolayer) Fe thin film with preadsorbed atomic hydrogen proceed through the formation of ethyl species and the products of ethylene and ethane show the incorporation of preadsorbed H or D atoms. beta-H elimination step of ethyl species exhibits a kinetic isotope effect; C-H cleavage is faster than C-D cleavage. The obtained bonding energy of ethyl species on 1 ML Fe film with adsorbed atomic hydrogen is (132 +/- 19) kJ/mol.
引用
收藏
页码：796 / 799
页数：4
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