Oxide ion conductivity in doped NdBaInO4

Tatsumi Ishihara, Yu Yan, Takaaki Sakai, Shintaro Ida

研究成果: ジャーナルへの寄稿学術誌査読

33 被引用数 (Scopus)


Oxide ion conductivity in doped NdBaInO4 with new type oxygen deficient perovskite was studied and it was found that doping Ti to In site is effective for increasing the oxide ion conductivity. Since increasing amount of doped Ti increased the partial electronic conductivity under reducing atmosphere, the optimized amount of Ti doped for In site exists around 20 mol%, namely, NdBaIn0.8Ti0.2O4. The estimated transport number of oxide ion in this optimized composition was higher than 0.8 from H2-O2 oxygen concentration cell, however, it is lower than 0.1 from N2-O2 cell because the hole conduction is dominant in high PO2 range. Consequently, although the oxide ion conductivity is around log(σ/Scm- 1) = - 2.5 at 1173 K, this study reveals that Ti doped NdBaInO4 which is unique edge oxygen facing structure, is a new family of oxide ion conductor.

ジャーナルSolid State Ionics
出版ステータス出版済み - 5月 1 2016

!!!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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