Water-oxygen interplay on tin dioxide surface:: Implication on gas sensing

被引：161
作者：
Koziej, D
Bârsan, N
Weimar, U
Szuber, J
Shimanoe, K
Yamazoe, N
机构：
[1] Silesian Tech Univ, Dept Microelect, PL-44100 Gliwice, Poland
[2] Univ Tubingen, Inst Phys & Theoret Chem, Dept Chem & Pharm, D-72076 Tubingen, Germany
[3] Kyushu Univ, Fac Engn Sci, Kasuga, Fukuoka 8168580, Japan
来源：
CHEMICAL PHYSICS LETTERS | 2005年 / 410卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2005.05.107
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：
Resistance measurements and direct spectroscopic investigations were used to monitor the surface reaction path between oxygen and water at the surface of SnO2. The experiments were carried out at high sensor operation temperature (330 and 400 degrees C) and at a constant background of water vapour. We found that there is a significant interaction between adsorbed oxygen ions and water vapour, which results in formation of terminal hydroxyl groups on tin dioxide surface. This observation is an evidence of water-oxygen interaction and so brings a new insight to the mechanistic modelling of the sensing with tin dioxide based sensors. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：321 / 323
页数：3
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