CO sensing mechanism with WO3 based gas sensors

The interaction between CO and WO3 based gas sensors was investigated in operando conditions by using resistance, catalytic conversion and DRIFTS measurements. The experimental results are showing that the sensing involves the reduction of the metal oxide, which is the opposite of the case of SnO2,...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2010-11, Vol.151 (1), p.103-106
Main Authors: Hübner, M., Simion, C.E., Haensch, A., Barsan, N., Weimar, U.
Format: Article
Language:English
Subjects:
Actuators
Carbon monoxide
Detection
Gas sensors
Metal oxides
Oxides
Tin dioxide
Tungsten oxides
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Summary:The interaction between CO and WO3 based gas sensors was investigated in operando conditions by using resistance, catalytic conversion and DRIFTS measurements. The experimental results are showing that the sensing involves the reduction of the metal oxide, which is the opposite of the case of SnO2, the other extremely relevant material for semiconducting oxides based gas sensors.
ISSN:0925-4005
DOI:10.1016/j.snb.2010.09.040