Behavior of oxygen concentration cells using BiCuVOx oxide-ion conductor

Hansang Cho, Go Sakai, Kengo Shimanoe, Noboru Yamazoe

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The mixed oxide, Bi2Cu0.1V0.9O 5.35 often abbreviated as BiCuVOx, is known as an oxide-ionic conductor. The applicability of this oxide to a potentiometric oxygen sensor was investigated. Oxygen concentration cells were fabricated by using a disk of this oxide to test the EMF response to changes in oxygen concentration between 10% and 100% at various temperatures between 300 and 700 °C. As a result, the performances of the cells were found to depend very much on the kinds of electrode materials. When attached with Pt electrodes, the cell produced the EMF response fairly good only at 600 °C and above, whereas the oxide-ion transport number was close to unity even at 500 °C as evaluated from the Faraday efficiency of oxygen pumping current. The use of a perovskite-type oxide (La0.6Sr0.4Co0.8Fe 0.2O3) instead of Pt was found to enable the cell to work at 400 °C and above. Especially excellent performances were observed when the oxide was mixed with BiCuVOx powder prior to being applied on the BiCuVOx disk as the electrodes.

Original languageEnglish
Pages (from-to)335-340
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume108
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Jul 22 2005

Fingerprint

Oxides
conductors
Ions
Oxygen
oxides
oxygen
cells
mixed oxides
ions
Electrodes
electrodes
electrode materials
Potentiometric sensors
Oxygen sensors
unity
pumping
Electric potential
Powders
Perovskite
sensors

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

Behavior of oxygen concentration cells using BiCuVOx oxide-ion conductor. / Cho, Hansang; Sakai, Go; Shimanoe, Kengo; Yamazoe, Noboru.

In: Sensors and Actuators, B: Chemical, Vol. 108, No. 1-2 SPEC. ISS., 22.07.2005, p. 335-340.

Research output: Contribution to journalArticle

Cho, Hansang ; Sakai, Go ; Shimanoe, Kengo ; Yamazoe, Noboru. / Behavior of oxygen concentration cells using BiCuVOx oxide-ion conductor. In: Sensors and Actuators, B: Chemical. 2005 ; Vol. 108, No. 1-2 SPEC. ISS. pp. 335-340.
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