Detection of offensive odorant in air with a planar-type potentiometric gas sensor based on YSZ with Au and Pt electrodes

A potentiometric gas sensor with a planar-type structure was fabricated and used to detect some offensive odorants in harsh environments such as ammonia, trimethyl-amine, methyl mercaptan and hydrogen sulfide. The electrode potential of the planar type sensor with a (Au/YSZ)|YSZ|(Pt/YSZ) structure r...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2014-02, Vol.191, p.351-355
Main Authors: Mori, Masami, Itagaki, Yoshiteru, Sadaoka, Yoshihiko, Nakagawa, Shin-ichi, Kida, Masahito, Kojima, Takio
Format: Article
Language:English
Subjects:
Actuators
Ammonia
Electrode potential
Electrodes
Gas sensors
Hydrogen sulfide
Mercaptans
Methyl mercaptan
Odorants
Offensive odor
Sensors
Trimethylamine
Yttria stabilized zirconia
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Summary:A potentiometric gas sensor with a planar-type structure was fabricated and used to detect some offensive odorants in harsh environments such as ammonia, trimethyl-amine, methyl mercaptan and hydrogen sulfide. The electrode potential of the planar type sensor with a (Au/YSZ)|YSZ|(Pt/YSZ) structure responded to such compounds at sub-ppm levels. The sensitivity at 450°C was in the order of methyl mercaptan>hydrogen sulfide>ammonia>trimethylamine.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2013.10.005