Development of resistive oxygen sensors based on cerium oxide thick film

被引：82

作者：

Izu, N ^{[1
]}

Shin, W ^{[1
]}

Matsubara, I ^{[1
]}

Murayama, N ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Synergy Mat Res Ctr, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

JOURNAL OF ELECTROCERAMICS | 2004年 / 13卷 / 1-3期

关键词：

oxygen gas sensor; ceria; fast response; precipitation method; carbon powder;

D O I：

10.1007/s10832-004-5179-7

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is important to shorten the response time of resistive oxygen sensor in order to reduce harmful emission of automobiles. The diffusion and surface reaction theory tells us that reducing particle size leads to shortening the response time. The fine ceria powder was prepared a by new precipitation method and the oxygen sensors having ceria thick film with the particle size of 120 nm were fabricated using fine ceria (cerium oxide) powder. The thick film exhibited good adhesion to alumina substrate. The value of n in R proportional to P(O-2)(1/n) at 1073 and 1173 K were 6.2 and 6.4 in the oxygen partial pressures range from 10(-13) to 10(5) Pa, respectively. The response time for the sensor was 22 and 12 ms at 1073 and 1173 K, respectively. The sensor fabricated in this study showed fast response.

引用

页码：703 / 706

页数：4

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