The adsorption of N2O on clean and chemically modified Ru(001) surfaces

被引：31

作者：

Huang, HH

Seet, CS

Zou, Z

Xu, GQ

机构：

[1] Department of Chemistry, National University of Singapore, Kent Ridge Crescent

来源：

SURFACE SCIENCE | 1996年 / 356卷 / 1-3期

关键词：

chemisorption; hydrogen; low index single crystal surfaces; nitrous oxide; oxygen; ruthenium; thermal desorption spectroscopy;

D O I：

10.1016/0039-6028(96)00035-0

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 N2O on clean, oxygen, deuterium and carbon monoxide modified Ru(001) surfaces was investigated. On the clean surface, three adsorption states have been observed, desorbing at 160-165, 145 and 116-123 K, respectively. On the oxygen modified surface, the presence of oxygen shifts the N2O desorption temperature from 129 K (on a clean surface) to a higher temperature of 173 K (theta(0) =0.12). The enhanced adsorption of N2O on partially O-covered Ru(001) was also observed. However, on D- and CO-precovered surfaces, the N2O adsorption is destabilized. These results can be accounted for by considering the ''through-metal'' and the lateral interactions between coadsorbates.

引用

页码：181 / 188

页数：8

共 34 条

[1] AN EELS STUDY OF N2O ADSORPTION ON PT(111) [J].