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Gas sensing properties of composite tungsten trioxide-zeolite thick films

Afonja, A; Dungey, S; Binions, R; Parkin, IP; Lewis, DW; Williams, DE; (2009) Gas sensing properties of composite tungsten trioxide-zeolite thick films. ECS Transactions , 16 (24) pp. 77-84. 10.1149/1.3109634.

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Abstract

The effectiveness of using zeolites as a method of improving selectivity in semiconducting metal oxide gas sensor responses to different test gases is demonstrated. Screen printed tungsten irioxide (WO 3 ) thick films overlaid with the hydrogen form of four types of zeolites were tested to different concentrations of NO 2 . ethanol and CO. The sensing results were shown to be reproducible with gas specific enhanced and diminished responses, which indicate that an array of highly discriminating composite metal oxide-zeolite sensors could be produced for electronic nose applications. ©The Electrochemical Society.

Type: Article
Title: Gas sensing properties of composite tungsten trioxide-zeolite thick films
DOI: 10.1149/1.3109634
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office
URI: http://discovery.ucl.ac.uk/id/eprint/1346747
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