Cordless solid-state hydrogen sensor using proton-conductor thick film

Norio Miura; Tatsuro Harada; Youichi Shimizu; Noboru Yamazoe

doi:10.1016/0925-4005(90)80186-4

Cordless solid-state hydrogen sensor using proton-conductor thick film

Norio Miura, Tatsuro Harada, Youichi Shimizu, Noboru Yamazoe

Research Center for Green Technology

Research output: Contribution to journal › Article

39 Citations (Scopus)

Abstract

Potentiometric as well as amperometric solid-state gas sensors using a thick film (≈ 10 μm) of proton-conductor have been developed for detecting small amounts of hydrogen in air at room temperature. The sensor elements are composed of the following electrochemical cell: reference (or counter) electrode (Au or Pt) | proton-conductor thick film | sensing electrode (Pt). The thick film is formed on an alumina substrate by applying a paste of antimonic acid-polyvinyl alcohol mixture, mainly by means of a spin-coating method. The electromotive force of the potentiometric sensor varies logarithmically with H₂ concentration, while the short-circuit current of the amperometric sensor is found to be proportional to H₂ concentration. Both give a 90% response time of about 10 s at 30 °C.

Original language	English
Pages (from-to)	125-129
Number of pages	5
Journal	Sensors and Actuators: B. Chemical
Volume	1
Issue number	1-6
DOIs	https://doi.org/10.1016/0925-4005(90)80186-4
Publication status	Published - Jan 1990

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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Miura, N., Harada, T., Shimizu, Y., & Yamazoe, N. (1990). Cordless solid-state hydrogen sensor using proton-conductor thick film. Sensors and Actuators: B. Chemical, 1(1-6), 125-129. https://doi.org/10.1016/0925-4005(90)80186-4

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