Zeolite-Based Selective Potentiometric Hydrogen Sensor

Titelangaben

Hagen, Gunter ; Moos, Ralf:
Zeolite-Based Selective Potentiometric Hydrogen Sensor.
In: Proceedings SENSOR 2009. - Wunstorf : AMA Verband für Sensorik und Messtechnik e.V. , 2009 . - S. 383-386
ISBN 978-3-9810993-5-5
DOI: https://doi.org/10.5162/sensor09/v2/p5.1

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Abstract

Planar potentiometric gas sensors consisting of thin-film interdigital electrodes (IDE) and an ionconducting zeolite thick-film cover layer are manufactured. One electrode comprises a thin film metaloxide layer on top, which is in contact to the zeolite. Electromotive forces between the electrodes depend on temperature, gas concentrations and the sensor configuration (type of metal oxide layer / type of ions in the Pt-doped zeolite). Results of a Pt-Na-ZSM-5 on Au/AuPt electrodes measured at 400 °C are very promising with respect to selectivity and sensitivity towards hydrogen in the test gas.