Photoelectron spectroscopic study of the adsorption of carbon dioxide on Cu(110) and Cu(110)/K - As compared with the systems Fe(110)/CO2 and Fe(110)/K+CO2

被引：42

作者：

Krause, J ^{[1
]}

Borgmann, D ^{[1
]}

Wedler, G ^{[1
]}

机构：

[1] UNIV ERLANGEN NURNBERG,INST THEORET & PHYS CHEM,D-91058 ERLANGEN,GERMANY

来源：

SURFACE SCIENCE | 1996年 / 347卷 / 1-2期

关键词：

adsorption; carbon dioxide; copper; photoelectron spectroscopy; potassium;

D O I：

10.1016/0039-6028(95)00964-7

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 of CO2 on clean Cu(110) and Cu(110)/K has been studied in the temperature range front 130 K to room temperature, mainly by application of the photoelectron spectroscopies UPS and XPS. There is no adsorption of CO2 on the clean Cu(110) face. Pre-adsorption of K (0.75 monolayers), however, leads to strong interaction between CO2 and the adsorbent. Depending on both exposure to CO2 and temperature, CO2 CO2delta-, CO, CO3n- and C2O4m- can be observed as adsorbed species. It is possible to propose a reaction scheme. The systems Cu(110)/CO2 and Cu(110)/K+CO2 on one hand and the systems Fe(110)/CO2 and Fe(110)/K+CO2 on the other hand behave very similarly. Probably the interaction of CO2 with the two adsorbents is dominated by the interaction of CO2 with the pre-adsorbed K.

引用

页码：1 / 10

页数：10

共 35 条

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