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

Norio Miura, Tatsuro Harada, Youichi Shimizu, Noboru Yamazoe

Research output: Contribution to journalArticle

40 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 languageEnglish
Pages (from-to)125-129
Number of pages5
JournalSensors and Actuators: B. Chemical
Volume1
Issue number1-6
DOIs
Publication statusPublished - Jan 1990

Fingerprint

Thick films
thick films
Protons
Hydrogen
conductors
solid state
protons
sensors
Sensors
hydrogen
Amperometric sensors
Potentiometric sensors
Solid-state sensors
Polyvinyl Alcohol
Electromotive force
Electrodes
Electrochemical cells
Aluminum Oxide
Polyvinyl alcohols
Spin coating

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

Cite this

Cordless solid-state hydrogen sensor using proton-conductor thick film. / Miura, Norio; Harada, Tatsuro; Shimizu, Youichi; Yamazoe, Noboru.

In: Sensors and Actuators: B. Chemical, Vol. 1, No. 1-6, 01.1990, p. 125-129.

Research output: Contribution to journalArticle

Miura, Norio ; Harada, Tatsuro ; Shimizu, Youichi ; Yamazoe, Noboru. / Cordless solid-state hydrogen sensor using proton-conductor thick film. In: Sensors and Actuators: B. Chemical. 1990 ; Vol. 1, No. 1-6. pp. 125-129.
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