Reaction pathways in the coadsorption of carbon monoxide and nitric oxide at caesium surfaces

被引：3

作者：

Carley, AF ^{[1
]}

Roberts, MW ^{[1
]}

Santra, AK ^{[1
]}

机构：

[1] Cardiff Univ, Dept Chem, Cardiff CF10 3TB, S Glam, Wales

来源：

SURFACE SCIENCE | 2002年 / 516卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

alkali metals; carbon monoxide; nitrogen oxides; surface chemical reaction;

D O I：

10.1016/S0039-6028(02)02058-7

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 reactivity of caesium surfaces to nitric oxide, carbon monoxide and mixtures of NO and CO at low temperatures (90-220 K) has been studied by X-ray photoelectron spectroscopy. Reaction pathways for CO-NO mixtures are controlled by oxygen transients generated by the dissociative chemisorption of NO emphasising the limitations of evidence that might be deduced from the reactivity of the individual molecules, CO on its own not being adsorbed at a caesium surface. Spectroscopic evidence for the formation of CO2b-, CO3, and NO2 species is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：L523 / L528

页数：6

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