CO consumption of Pd doped SnO2 based sensors

被引：52

作者：

Kappler, J

Tomescu, A

Barsan, N

Weimar, U

机构：

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

[2] Natl Inst Mat Phys, Bucharest 76900, Romania

来源：

THIN SOLID FILMS | 2001年 / 391卷 / 02期

关键词：

SnO2; CO; combustion; consumption; electrodes; thick film sensors;

D O I：

10.1016/S0040-6090(01)00980-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The CO consumption of tin dioxide, thick film sensors and their sensor signals have been investigated in order to study the GO-water interaction on the SnO2 surface. The mechanism of CO combustion, and the influence of the sensor's operation temperature (200-400 degreesC) and ambient humidity (0-50% r.h.) on the combustion has been characterised in detail. Here, the overall CO consumption of the sensors has been divided according to the contributions of the various individual sensor parts: alumina substrate; electrodes: heater; and the SnO2 based sensitive layer. It can be shown that CO combustion is a linear function of CO concentration. The influence of the substrate on total CO consumption has been proven to be significant. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：186 / 191

页数：6

共 20 条

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