Potentiometric CO2 Gas Sensor Based on Zeolites
Zeolites are interesting materials for gas sensing applications. Their benefiting properties range from high inner surfaces and high catalytic activities to cation-conduction. We took advantage of these properties. In a potentiometric solid-state CO2 sensor setup, the ion conductor (Nasicon) was be replaced by a sodium conductive, porous ZSM-5 zeolite thick-film as top layer in a planar setup. Since the zeolite works simultaneously as a catalytic filter, the sensor cross selectivities are highly enhanced.
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Document Type: Research Article
Publication date: April 1, 2011
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