Introduction of In or Ga as second dopant to BaZr0.9Y0.1O3 - δ to achieve better sinterability

Naoki Ito; Hiroshige Matsumoto; Yuya Kawasaki; Sachio Okada; Tatsumi Ishihara

doi:10.1016/j.ssi.2008.02.047

Introduction of In or Ga as second dopant to BaZr_0.9Y_0.1O_{3 - δ} to achieve better sinterability

Naoki Ito, Hiroshige Matsumoto, Yuya Kawasaki, Sachio Okada, Tatsumi Ishihara

Materials Science and Engineering, School of Engineering

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

BaZr_{1 - x}Y_xO_{3 - δ} is a proton-conducting oxide that has both high ionic conductivity and good chemical stability, but disadvantageously has low sinterability. In this work, two co-dopant systems, BaZr_0.9(Y_{1 - x}M_x)_0.1O_{3 - δ} (M = Ga, In), were studied with the aim of improving sinterability. In both systems, sinterability was markedly improved. Although the addition of Ga markedly decreased the conductivity of BaZr_{1 - x}Y_xO_{3 - δ}, the addition of In did not decrease the conductivity significantly. It was shown that BaZr_0.9Y_0.05In_0.05O_{3 - δ} is a practically useful material with a good combination of conductivity and sinterability.

Original language	English
Pages (from-to)	324-329
Number of pages	6
Journal	Solid State Ionics
Volume	179
Issue number	9-10
DOIs	https://doi.org/10.1016/j.ssi.2008.02.047
Publication status	Published - May 15 2008

All Science Journal Classification (ASJC) codes

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

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title = "Introduction of In or Ga as second dopant to BaZr0.9Y0.1O3 - δ to achieve better sinterability",

abstract = "BaZr1 - xYxO3 - δ is a proton-conducting oxide that has both high ionic conductivity and good chemical stability, but disadvantageously has low sinterability. In this work, two co-dopant systems, BaZr0.9(Y1 - xMx)0.1O3 - δ (M = Ga, In), were studied with the aim of improving sinterability. In both systems, sinterability was markedly improved. Although the addition of Ga markedly decreased the conductivity of BaZr1 - xYxO3 - δ, the addition of In did not decrease the conductivity significantly. It was shown that BaZr0.9Y0.05In0.05O3 - δ is a practically useful material with a good combination of conductivity and sinterability.",

author = "Naoki Ito and Hiroshige Matsumoto and Yuya Kawasaki and Sachio Okada and Tatsumi Ishihara",

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T1 - Introduction of In or Ga as second dopant to BaZr0.9Y0.1O3 - δ to achieve better sinterability

AU - Ito, Naoki

AU - Matsumoto, Hiroshige

AU - Kawasaki, Yuya

AU - Okada, Sachio

AU - Ishihara, Tatsumi

PY - 2008/5/15

Y1 - 2008/5/15

N2 - BaZr1 - xYxO3 - δ is a proton-conducting oxide that has both high ionic conductivity and good chemical stability, but disadvantageously has low sinterability. In this work, two co-dopant systems, BaZr0.9(Y1 - xMx)0.1O3 - δ (M = Ga, In), were studied with the aim of improving sinterability. In both systems, sinterability was markedly improved. Although the addition of Ga markedly decreased the conductivity of BaZr1 - xYxO3 - δ, the addition of In did not decrease the conductivity significantly. It was shown that BaZr0.9Y0.05In0.05O3 - δ is a practically useful material with a good combination of conductivity and sinterability.

AB - BaZr1 - xYxO3 - δ is a proton-conducting oxide that has both high ionic conductivity and good chemical stability, but disadvantageously has low sinterability. In this work, two co-dopant systems, BaZr0.9(Y1 - xMx)0.1O3 - δ (M = Ga, In), were studied with the aim of improving sinterability. In both systems, sinterability was markedly improved. Although the addition of Ga markedly decreased the conductivity of BaZr1 - xYxO3 - δ, the addition of In did not decrease the conductivity significantly. It was shown that BaZr0.9Y0.05In0.05O3 - δ is a practically useful material with a good combination of conductivity and sinterability.

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