OXYGEN-SENSING PROPERTIES OF SPINEL-TYPE OXIDES FOR STOICHIOMETRIC AIR FUEL COMBUSTION CONTROL

被引：47

作者：

SHIMIZU, Y ^{[1
]}

KUSANO, S ^{[1
]}

KUWAYAMA, H ^{[1
]}

TANAKA, K ^{[1
]}

EGASHIRA, M ^{[1
]}

机构：

[1] NAGASAKI UNIV,GRAD SCH MARINE SCI & ENGN,NAGASAKI 852,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 04期

关键词：

combustion; electrical resistors; oxides; sensors; spinels;

D O I：

10.1111/j.1151-2916.1990.tb05120.x

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：

The temperature dependence of electrical resistance of several spinel‐type oxides was measured in exhaust gases of air‐methane combustion, to evaluate the potential of the oxides as an air/fuel stoichiometric oxygen sensor. The results are discussed in terms of sensitivity and response time at the stoichiometric combustion point. It was found that the sensitivity as well as the response time is markedly affected by point defect structures of the oxide specimens. The response time is also related to the catalytic activity of the oxides for complete oxidation of methane. Among the specimens studied, the ZnCr2O4+ Cr2O3 (1.0:0.1 molar ratio) is the most promising as the oxygen sensor, because it exhibits the largest resistance changes of more than 3 orders of magnitude and shortest response times of about 0.5 s when the combustion mixture is switched between the air‐rich versus fuel‐rich composition. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：818 / 824

页数：7

共 14 条

[1]

ARAI H, 1987, JUN P TRANSD 87 IEEE, P689

[2] USE OF TIN DIOXIDE SENSOR TO CONTROL A DOMESTIC GAS HEATER [J].

IHOKURA, K ;

TANAKA, K ;

MURAKAMI, N .

SENSORS AND ACTUATORS, 1983, 4 (04) :607-612

[3]

KONDO H, 1983, 3RD P SENS S, P185

[4]

KROGER FA, 1956, SOLID STATE PHYS, V3, P307

[5]

Logothetis E. M., 1983, Sensors and Actuators, V4, P333, DOI 10.1016/0250-6874(83)85041-0

[6]

MICHELI AL, 1984, AM CERAM SOC BULL, V63, P694

[7] A LEAN-BURN OXYGEN SENSOR CONSISTING OF A DUAL-DISC SEMICONDUCTOR [J].

SHIMIZU, Y ;

FUKUYAMA, Y ;

YU, C ;

ARAI, H .

SENSORS AND ACTUATORS, 1988, 14 (04) :319-330

[8] PEROVSKITE-TYPE OXIDES HAVING SEMICONDUCTIVITY AS OXYGEN SENSORS [J].

SHIMIZU, Y ;

FUKUYAMA, Y ;

NARIKIYO, T ;

ARAI, H ;

SEIYAMA, T .

CHEMISTRY LETTERS, 1985, (03) :377-380

[9]

SHIMIZU Y, 1986, ACS SYM SER, V309, P84

[10] MIXED IONIC-ELECTRONIC CONDUCTIVITY OF LA1-XSRXCO1-YFEYO3-DELTA PEROVSKITE-TYPE OXIDES [J].

TERAOKA, Y ;

ZHANG, HM ;

OKAMOTO, K ;

YAMAZOE, N .

MATERIALS RESEARCH BULLETIN, 1988, 23 (01) :51-58

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