Electrical conductivity of alkaline-earth metal β-aluminas and their application to a CO2 gas sensor

G. He, T. Goto, T. Narushima, Y. Iguchi

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)

Abstract

Sr and Baβ-aluminas in a single phase were synthesized in the MO-MgO-Al2O3 (M = Sr and Ba) system by a solid state sintering method. The electrical conductivity was measured at 873 to 1473 K by an AC impedance method. The total electrical conductivities of Srβ-alumina and Baβ-alumina were 1.2×10-2 S m-1 and 6.7×10-4 S m-1 at 1473 K, respectively. A CO2 gas sensor using the Srβ-alumina was constructed. The sensor could be used at more than 1000 K.

Original languageEnglish
Pages (from-to)313-319
Number of pages7
JournalSolid State Ionics
Volume121
Issue number1
DOIs
Publication statusPublished - 1999 Jun
EventProceedings of the 1997 11th International Conference on Solid State Ionics, SSI-97 - Honolulu, HI, USA
Duration: 1997 Nov 161997 Nov 21

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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