THE STABILIZATION OF ADSORBED CARBON-DIOXIDE BY FORMATE ON CU(100)

被引：11

作者：

CHORKENDORFF, I

RASMUSSEN, PB

CHRISTOFFERSEN, H

TAYLOR, PA

机构：

[1] Laboratory of Applied Physics, Technical University of Denmark

来源：

SURFACE SCIENCE | 1993年 / 287卷

关键词：

D O I：

10.1016/0039-6028(93)90772-C

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：

The adsorption and desorption of CO2 on copper has recently achieved much attention as it is expected to play an important role in the methanol synthesis and is known to take part in the water-gas-shift reaction as well as in the formate synthesis on copper. The CO2 interaction with the clean surface is known to be quite weak, 25-30 kJ mol-1 and the CO2 molecule is lying parallel to the surface. However, when formate is pre-adsorbed, the CO2 is found to be stabilized by 14 +/- 1 kJ mol-1 per monolayer formate. The bonding geometry is also heavily influenced by the formate as a new loss feature in the HREEL spectra suggests that the molecule is bent, breaking the linear symmetry.

引用

页码：208 / 211

页数：4

共 18 条

[1] ADSORPTION AND REACTION OF CO2 AND CO2/O COADSORPTION ON NI(110) - ANGLE RESOLVED PHOTOEMISSION (ARUPS) AND ELECTRON-ENERGY LOSS (HREELS) STUDIES [J].