Gas sensing properties of In2O3 and Au-doped In2O3 films for detecting carbon monoxide in air

被引：21

作者：

Belysheva, TV ^{[1
]}

Kazachkov, EA ^{[1
]}

Gutman, EE ^{[1
]}

机构：

[1] Karpov Res Inst Phys Chem, State Res Ctr Russian Federat, Moscow 103064, Russia

来源：

JOURNAL OF ANALYTICAL CHEMISTRY | 2001年 / 56卷 / 07期

关键词：

Oxide; Indium; Analytical Chemistry; Catalytic Activity; Carbon Monoxide;

D O I：

10.1023/A:1016756725312

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Catalytic and sensing properties of several metal oxides in the reaction of CO oxidation and in the sensor detection of CO in air have been studied and compared to each other. Indium. oxide has been found to be, the most sensitive and possessing a relatively low catalytic activity in the oxidation of CO. Possible reasons for the high activity of the indium. oxide sensor matrix are discussed. The promoting effect of An and Pd doping of In2O3 in the detection of CO in air has been studied, and a mechanism explaining the enhanced sensor response of Au-doped In2O3 has been proposed. A change in humidity has no significant effect on the sensor response of Au-doped In2O3 in the detection of CO in air.

引用

页码：676 / 678

页数：3

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