Ethylene hydrogenation on a Rh(100) surface

被引：9

作者：

Egawa, C

Katayama, S

Oki, S

机构：

[1] Dept. of Appl. Chem., Utsunomiya University, Utsunomiya 321

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 266卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(96)01531-X

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：

Ultraviolet photoemission spectra from ethylene adsorbed at 80 K clearly show the presence of di-sigma-bonded and pi-bonded ethylene on clean and H-precovered Rh(100) surfaces, respectively. In temperature programmed reaction spectroscopy, one-third of this weakly adsorbed pi-bonded ethylene is effectively hydrogenated to ethane below 200 K in contrast to the di-sigma-bonded ethylene coadsorbed with hydrogen atoms. This is strong support for pi-bonded ethylene as a primary intermediate in the reaction of ethylene hydrogenation.

引用

页码：169 / 172

页数：4

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