Sensing behavior of solid-state impedancemetric NOx sensor using solid electrolyte transducer and oxide receptor

Solid-electrolyte impedancemetric NOx (NOx; NO, NO2) sensor devices were designed by using metal oxides (Fe2O3, Co3O4, NiO, CuO, ZnO) as a receptor material and an 8mol%-yttria-stabilized zirconia (YSZ) plate as a solid electrolyte transducer material. The sensing signal could be simply detected as...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2013-10, Vol.187, p.94-98
Main Authors: Cho, Hong-Chan, Takase, Satoko, Song, Jeong-Hwan, Shimizu, Youichi
Format: Article
Language:English
Subjects:
Detection
Devices
Impedancemetric
NiO
Nitrogen dioxide
NOx sensor
Receptors
Sensors
Solid electrolytes
Solid-electrolyte
Transducers
YSZ
Yttria stabilized zirconia
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Summary:Solid-electrolyte impedancemetric NOx (NOx; NO, NO2) sensor devices were designed by using metal oxides (Fe2O3, Co3O4, NiO, CuO, ZnO) as a receptor material and an 8mol%-yttria-stabilized zirconia (YSZ) plate as a solid electrolyte transducer material. The sensing signal could be simply detected as the impedance change of the transducer. The sensing performance of the impedancemetric NOx sensor for the detection of NOx in the range 10–150ppm at 300–500°C was investigated using impedance analyzer. Among the sensor device tested NiO/YSZ sensor showed good sensing properties for NO and NO2 at 400°C on 100kHz. Moreover, the sensing response properties showed good selectivity and stability to NO2.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2012.09.066