Sensing of carbon monoxide gas in reducing environments

被引：19

作者：

Dutta, PK

Rao, RR

Swartz, SL

Holt, CT

机构：

[1] Ohio State Univ, Ctr Ind Sensors & Measurements, Columbus, OH 43210 USA

[2] Nex Tech Mat Ltd, Worthington, OH 43085 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2002年 / 84卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

metal halide sensors; fuel cells; CO adsorption;

D O I：

10.1016/S0925-4005(02)00023-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The change in resistance of thin-films of CuCl upon exposure to carbon monoxide is developed as the basis for sensing CO gas in reducing environments. Several methods of preparation of thin films of CuCl films were examined. Films prepared by solvent evaporation under ambient conditions showed good sensitivity for CO in the presence of hydrogen gas. The optimum sensing temperature was found to be 50 degreesC. We propose a hole conduction mechanism for CO sensing by CuCl films. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：189 / 193

页数：5

共 25 条

[1] Electrical Conductivity of Composite Solid Electrolytes Copper(I) Bromide-Titanium Dioxide [J].