Limiting current type sensor for hydrocarbons

Y. Eguchi, S. Watanabe, N. Kubota, T. Takeuchi, T. Ishihara, Y. Takita

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

A hydrocarbon (HC) sensor, composed of yttria-stabilized zirconia (YSZ) as a solid electrolyte and catalytically active and passive material for HC as electrodes, is proposed. The active and passive electrodes were attached to the same side of a YSZ disk as cathodes. A Pt electrode was applied to the other side of YSZ as anode. The diffusion of gas to the cathodes was limited by a pinhole of a cover attached to YSZ and the sensor showed a limiting current behavior by applying voltage. The difference between the limiting current, ΔI, of two cathodes increased linearly with the concentration of HC such as methane and isobutane, which suggests that HC concentration can be obtained by measuring ΔI.

Original languageEnglish
Pages (from-to)9-11
Number of pages3
JournalSensors and Actuators, B: Chemical
Volume66
Issue number1
DOIs
Publication statusPublished - Jul 25 2000
Externally publishedYes
EventIMCS-7: 7th International Meeting on Chemical Sensors - Beijing, China
Duration: Jul 27 1998Jul 30 1998

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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