CO2 SENSORS USING BACEO3-BASED CERAMICS

被引：27

作者：

HIBINO, T

IWAHARA, H

机构：

[1] Synthetic Crystal Research Laboratory, School of Engineering, Nagoya University, Chikusa-ku, Nagoya, 464-01, Furo-cho

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1993年 / 13卷 / 1-3期

关键词：

D O I：

10.1016/0925-4005(93)85433-B

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The resistivity of a BaCe0.95Y0.0503-alpha ceramic element is very sensitive to CO2 in a moist atmosphere. A reproducible linear relationship between the resistivity and the CO2 concentration is observed in the range 200-3000 ppm. In situ FT-IR spectra indicate that hydroxides are formed on the BaCe0.95Y0.0503-alpha surface in the moist atmosphere and react with CO2 to form carbonates. From various electrochemical measurements, it is found that the carbonates formed do not increase the bulk resistivity of BaCe0.95Y0.05O3-alpha but the resistivity of the interface between the electrolyte and the electrode.

引用

页码：483 / 485

页数：3

共 7 条

[1] SOLID-STATE DETECTORS FOR POTENTIOMETRIC DETERMINATION OF GASEOUS OXIDES .1. MEASUREMENT IN AIR [J].

GAUTHIER, M ;

CHAMBERLAND, A .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (10) :1579-1583

[2] A CARBON-DIOXIDE GAS SENSOR PROBE BASED ON A LITHIUM IONIC CONDUCTOR [J].

IMANAKA, N ;

KAWASATO, T ;

ADACHI, GY .

CHEMISTRY LETTERS, 1990, (04) :497-500

[3] MIXED-OXIDE CAPACITOR OF CUO-BASNO3 AS A SENSOR FOR CO2 DETECTION OVER A WIDE-RANGE OF CONCENTRATION [J].

ISHIHARA, T ;

KOMETANI, K ;

MIZUHARA, Y ;

TAKITA, Y .

CHEMISTRY LETTERS, 1991, (10) :1711-1714

[4] APPLICATION OF MIXED-OXIDE CAPACITOR TO THE SELECTIVE CARBON-DIOXIDE SENSOR .1. MEASUREMENT OF CARBON-DIOXIDE SENSING CHARACTERISTICS [J].

ISHIHARA, T ;

KOMETANI, K ;

HASHIDA, M ;

TAKITA, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1991, 138 (01) :173-176

[5] PROTON CONDUCTION IN SINTERED OXIDES BASED ON BACEO3 [J].

IWAHARA, H ;

UCHIDA, H ;

ONO, K ;

OGAKI, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1988, 135 (02) :529-533

[6] POTENTIOMETRIC GAS SENSOR FOR CARBON-DIOXIDE USING SOLID ELECTROLYTES [J].

MARUYAMA, T ;

SASAKI, S ;

SAITO, Y .

SOLID STATE IONICS, 1987, 23 (1-2) :107-112

[7] A NEW TYPE OF CO2 GAS SENSOR COMPRISING POROUS HYDROXYAPATITE CERAMICS [J].

NAGAI, M ;

NISHINO, T ;

SAEKI, T .

SENSORS AND ACTUATORS, 1988, 15 (02) :145-151

← 1 →