A new CO2 gas sensing material

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...

Full description

Saved in:
Bibliographic Details
Published inSensors and actuators. B, Chemical Vol. 95; no. 1-3; pp. 266 - 270
Main Authors Marsal, A., Dezanneau, G., Cornet, A., Morante, J.R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.10.2003
Subjects
CO2 gas sensor
LaOCl
CO2 gas sensor
LaOCl
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-4005
1873-3077
DOI:10.1016/S0925-4005(03)00443-X