High performance gas sensing of CO:: comparative tests for (SnO2-based) semiconducting and for electrochemical sensors

被引：32

作者：

Bârsan, N

Stetter, JR

Findlay, M

Göpel, W

机构：

[1] Univ Tubingen, Inst Theoret & Phys Chem, D-72076 Tubingen, Germany

[2] IIT, BCPS Dept, Chicago, IL 60616 USA

[3] TSI, St Paul, MN 55126 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 66卷 / 1-3期

关键词：

semiconductor SnO2 devices; electrochemical amperometric sensors; CO;

D O I：

10.1016/S0925-4005(99)00335-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A comparison of the stability and sensitivity for two different sensor types (semiconductor SnO2 devices and amperometric electrochemical sensors) has been performed. Sensitivities and drifts in the signal and in the background for various concentrations of CO have been studied for thick film SnO2 sensors (undoped, Pt and Pd doped) over a period in excess of 8 months. Similar performance data have been recorded for amperometric sensors over a period in excess of 3 years. The two sensor types investigated here were also compared to well known commercial SnO2-based sensors at similar concentrations. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：31 / 33

页数：3