Methane sensing: from sensitive thick films to a reliable selective device

Discusses the long route between gas sensitive tin oxide material and a reliable prototype for selective methane sensing. Good reproducibility of fabrication is a prerequisite to development of a cheap sensing device. Hybrid thick film technology appears well adapted for this purpose. Sensitivity is...

Full description

Saved in:
Bibliographic Details
Published in:Measurement science & technology 1997-01, Vol.8 (1), p.99-110
Main Authors: Debéda, H, Massok, P, Lucat, C, Ménil, F, Aucouturier, J L
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Discusses the long route between gas sensitive tin oxide material and a reliable prototype for selective methane sensing. Good reproducibility of fabrication is a prerequisite to development of a cheap sensing device. Hybrid thick film technology appears well adapted for this purpose. Sensitivity is shown to be modified by the thickness of the tin oxide layer, the addition of palladium, the addition of a glass binder, the electrode metal and the presence of a coating. Methane selectivity has been achieved by adapting a concept proposed previously, based on the differential catalytic activity of palladium and platinum versus the oxidation of methane at 400\0\C and by combining two sensing principles on the same alumina substrate. (Abstract quotes from original text)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/8/1/014