Effects of rare earth cations doped for La site on the oxide ionic conductivity of LaGaO3-based perovskite type oxide

Tatsumi Ishihara, Hideaki Matsuda, Yusaku Takita

研究成果: ジャーナルへの寄稿学術誌査読

279 被引用数 (Scopus)

抄録

For the suppression of hole conduction in the high oxygen partial pressure range, effects of the addition of small amount of rare earth cations were investigated in this study with La0.8Sr0.2Ga0.8Mg0.2O3 - δ. It was found that the addition of small amount of rare earth cations for La site in LaGaO3 was effective for the suppression of hole conduction under high oxygen partial pressure, albeit the electrical conductivity decreased slightly. In particular, perovskite oxide of (La0.9Nd0.1)0.8Sr0.2Ga0.8Mg0.2O3 - δ exhibits almost pure oxide ionic conduction over the oxygen partial pressure from 1 to 10-21 atm, and the electrical conductivity attains the value of log (σ/S cm-1) = -0.5 at 1223 K.

本文言語英語
ページ(範囲)147-151
ページ数5
ジャーナルSolid State Ionics
79
C
DOI
出版ステータス出版済み - 7月 1995
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

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