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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) 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) thick films overlaid with the hydrogen form of four types of zeolites were tested to different concentrations of NO. 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 > Faculty of Maths and Physical Sciences > Chemistry

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