Dissociative adsorption of NO on TiO2(110) argon ion bombarded surfaces

被引:28
作者
Abad, J [1 ]
Böhme, O [1 ]
Román, E [1 ]
机构
[1] CSIC, ICMM, Inst Mat Sci Madrid, E-28049 Madrid, Spain
关键词
titanium oxide; nitrogen oxides; X-ray photoelectron spectroscopy; visible and ultraviolet photoelectron spectroscopy; Auger electron spectroscopy; oxidation;
D O I
10.1016/j.susc.2003.11.031
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 interaction of NO with TiO2(110) Ar+-ion-bombarded surfaces has been studied by X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, Auger electron spectroscopy. Surfaces with different degrees of defects have been characterized by monitoring the evolution of the electronic structure of the surface, with the aim of studying the influence of the surface defects on the interaction with NO. The interaction was studied for exposures up to 500 L. However, the main effects occur already in the first 10 L. The exposure of the surfaces to NO resulted in the removal of defect sites without adsorption of N. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:134 / 142
页数:9
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