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Sensors 2011, 11(8), 7736-7748; doi:10.3390/s110807736

Planar Zeolite Film-Based Potentiometric Gas Sensors Manufactured by a Combined Thick-Film and Electroplating Technique

Department of Functional Materials, University of Bayreuth, Bayreuth 95440, Germany
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Received: 17 June 2011 / Revised: 28 July 2011 / Accepted: 31 July 2011 / Published: 5 August 2011
(This article belongs to the Section Chemical Sensors)
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Abstract

Zeolites are promising materials in the field of gas sensors. In this technology-oriented paper, a planar setup for potentiometric hydrocarbon and hydrogen gas sensors using zeolites as ionic sodium conductors is presented, in which the Pt-loaded Na-ZSM-5 zeolite is applied using a thick-film technique between two interdigitated gold electrodes and one of them is selectively covered for the first time by an electroplated chromium oxide film. The influence of the sensor temperature, the type of hydrocarbons, the zeolite film thickness, and the chromium oxide film thickness is investigated. The influence of the zeolite on the sensor response is briefly discussed in the light of studies dealing with zeolites as selectivity-enhancing cover layers. View Full-Text
Keywords: solid state hydrocarbon gas sensor; zeolite; MFI; ZSM-5 solid state hydrocarbon gas sensor; zeolite; MFI; ZSM-5
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Marr, I.; Reiß, S.; Hagen, G.; Moos, R. Planar Zeolite Film-Based Potentiometric Gas Sensors Manufactured by a Combined Thick-Film and Electroplating Technique. Sensors 2011, 11, 7736-7748.

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