Selective CO detection by using indium oxide-based semiconductor gas sensor

被引：46

作者：

Yamaura, H ^{[1
]}

Tamaki, J ^{[1
]}

Moriya, K ^{[1
]}

Miura, N ^{[1
]}

Yamazoe, N ^{[1
]}

机构：

[1] OSAKA GAS CO LTD,CTR RES & DEV,KONOHANA KU,OSAKA 554,JAPAN

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1996年 / 143卷 / 02期

关键词：

D O I：

10.1149/1.1836449

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

From a screening test for the sensing properties of 26 single oxides, an In2O3 sensor element was found to exhibit rather high sensitivity to both CO and H-2 in wet air at 300 degrees C. In order to improve the selectivity to CO vs. H,, each of 33 metal oxides was added to In2O3. As a result, the addition of alkaline metal oxides was found to enhance markedly both sensitivity and selectivity to CO. Particularly, Rb2O (5 weight percent)-In2O3 element showed the highest CO selectivity. It could detect 500 to 4000 ppm CO in wet air at 300 degrees C satisfactorily.

引用

页码：L36 / L37

页数：2

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