CO sensing properties of SnO sub(2)-CeO sub(2) mixed oxides

A series of SnO sub(2)-CeO sub(2) powder mixed oxides (with 5, 10, and 20 % wt SnO sub(2)) was prepared, characterized and used to study the sensing properties for CO, in absence of oxygen, using a CO-helium mixture. The results have shown that the SnO sub(2)-CeO sub(2) powder has good response and...

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Published inReaction kinetics, mechanisms and catalysis Vol. 117; no. 2; pp. 551 - 563
Main Authors Chesler, P, Hornoiu, C, Bratan, V, Munteanu, C, Postole, G, Ionescu, NI, Juzsakova, T, Redey, A, Gartner, M
Format Journal Article
LanguageEnglish
Published 01.04.2016
Subjects
Catalysis
Detection
Mixed oxides
Oxygen
Reaction kinetics
Sensors
Tin dioxide
Tin oxides
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Summary:A series of SnO sub(2)-CeO sub(2) powder mixed oxides (with 5, 10, and 20 % wt SnO sub(2)) was prepared, characterized and used to study the sensing properties for CO, in absence of oxygen, using a CO-helium mixture. The results have shown that the SnO sub(2)-CeO sub(2) powder has good response and recovery characteristics. This powder has better sensitivity to CO than pure SnO sub(2) at the working temperature of 400-450 degree C. A sensing mechanism was proposed and discussed in this paper. The results have indicated that the SnO sub(2)-CeO sub(2) mixed oxides can be used as CO sensors, in absence of oxygen.
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ISSN:1878-5190
1878-5204
DOI:10.1007/s11144-015-0970-9