Electrochemical properties of Cs-substituted CaWO4 and BaWO4 oxide ion conductors
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- TAKAI Shigeomi
- Graduate School of Energy Science, Kyoto University
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- MORISHITA Yuya
- Graduate School of Engineering, Tottori University
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- KONDO Yuta
- Graduate School of Engineering, Tottori University
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- YAO Takeshi
- Institute of Advanced Energy, Kyoto University National Institute of Technology, Kagawa College
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- YABUTSUKA Takeshi
- Graduate School of Energy Science, Kyoto University
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- ESAKA Takao
- Graduate School of Engineering, Tottori University
書誌事項
- タイトル別名
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- Electrochemical properties of Cs-substituted CaWO<sub>4</sub> and BaWO<sub>4</sub> oxide ion conductors
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説明
High-temperature electrochemical properties of Cs-substituted CaWO4 and BaWO4 have been investigated. When cesium ions are partly substituted for calcium site of Scheelite-type structured CaWO4 to form oxide ion vacancies as Ca1−xCsxWO4−x/2, oxide ion conduction appears at elevated temperatures. This defect structure for the oxide ion conduction is in contrast to the PbWO4-based oxide ion conductor with oxide ion interstitials, Pb1−xLaxWO4+x/2. The measured electric conductivity of Ca1−xCsxWO4−x/2 (x = 0.15) is high as 10−2 Scm−1 at 750°C with the oxide ion transport number relatively close to unity. Essentially the similar results are obtained for the barium analogous system Ba1−xCsxWO4−x/2, although the conductivity is still lower than CaWO4-based system.
収録刊行物
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- Journal of the Ceramic Society of Japan
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Journal of the Ceramic Society of Japan 124 (8), 819-822, 2016
公益社団法人 日本セラミックス協会
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詳細情報 詳細情報について
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- CRID
- 1390282680263357568
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- NII論文ID
- 130005255866
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- ISSN
- 13486535
- 18820743
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
