SENSING CHARACTERISTICS OF A SOLID-STATE AMMONIA SENSOR AT AMBIENT-TEMPERATURES

被引：14

作者：

MIURA, N ^{[1
]}

WORRELL, WL ^{[1
]}

机构：

[1] UNIV PENN,DEPT MAT SCI & ENGN,PHILADELPHIA,PA 19104

来源：

SOLID STATE IONICS | 1988年 / 27卷 / 03期

关键词：

AIR POLLUTION - Gaseous Effluents - ELECTRODES; ELECTROCHEMICAL - Gas Sensing - SEMICONDUCTOR DEVICES - Temperature Effect - SENSORS - Electrochemical;

D O I：

10.1016/0167-2738(88)90007-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The sensing characteristics of a solid-state gas sensor using a proton conductor (antimonic acid) to detect small amounts of ammonia in air at room temperature have been investigated. The sensor consists of four probes with two outer platinum electrodes and two inner silver probes. Under the short-circuit conditions, the potential difference between the silver probes exhibits a logarithmic variation with ammonia concentration 50 ppm to 5030 ppm in air. The most-likely sensing mechanism is also proposed.

引用

页码：175 / 179

页数：5

共 12 条

[1]

LUNDSTROM I, 1986, 2ND P INT M CHEM SEN, P387

[2] A 4-PROBE TYPE GAS SENSOR USING A SOLID-STATE PROTON CONDUCTOR SENSITIVE TO HYDROGEN AT ROOM-TEMPERATURE [J].