IRAS STUDIES OF ADSORBED ETHENE (C2H4) ON CLEAN AND OXYGEN-COVERED CU(110) SURFACES

被引：32

作者：

KUBOTA, J ^{[1
]}

KONDO, JN ^{[1
]}

DOMEN, K ^{[1
]}

HIROSE, C ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,YOKOHAMA 227,JAPAN

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1994年 / 98卷 / 31期

关键词：

D O I：

10.1021/j100082a042

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：

Ethene adsorption on clean and oxygen-modified Cu(110) surfaces was investigated by infrared reflection absorption spectroscopy (IRAS). The end-on species of adsorbed ethene, as was reported by Jenks et al., was observed on a clean Cu(110) surface. It was, however, suggested that the adsorbed ethene structures at higher temperature were different from those obtained at lower temperature. On oxygen-modified Cu(110) surfaces, end-on ethene decreased with the increase of the amount of surface oxygen. The pi-adsorption occurred only when the (2 X 1)-O/Cu(110) reconstructed surface was formed. The pi-bonded ethene on the (2 x 1)-O/Cu(110) adsorbed reversibly even at 110 K, and the heat of adsorption was estimated to be 32 +/- 7 kJ/mol from the analysis of the adsorption isobar obtained by IRAS.

引用

页码：7653 / 7656

页数：4

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