A new CO2 gas sensing material

被引：89

作者：

Marsal, A ^{[1
]}

Dezanneau, G ^{[1
]}

Cornet, A ^{[1
]}

Morante, JR ^{[1
]}

机构：

[1] Univ Barcelona, Dept Elect, E-08028 Barcelona, Spain

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 95卷 / 1-3期

关键词：

CO2 gas sensor; LaOCl;

D O I：

10.1016/S0925-4005(03)00443-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new material for CO2 sensing based on resistive changes is described. Using hydrated LaCl3 as precursor and through two different synthesis routes-simple oxidation and a sol-gel-derived method-LaOCl powders are obtained. The main sensing characteristics of these powders are analysed, with special emphasis on (a) their response to CO2 at a wide range of relative humidities and (b) their cross-sensitivity with CO. Compared with other metal oxide-based materials, lanthanum oxychloride offers a low working temperature and an improved sensor response in both dry and humid atmospheres. (C) 2003 Elsevier B.V. All rights reserved.

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页码：266 / 270

页数：5

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