TEM and ETEM study of SrZrO3 formation at LSCF/GDC/YSZ interfaces

J. Matsuda, S. Kanae, T. Kawabata, J. T. Chou, Y. Inoue, S. Taniguchi, K. Sasaki

研究成果: 著書/レポートタイプへの貢献会議での発言

8 引用 (Scopus)

抜粋

Transmission electron microscopic (TEM) studies have revealed SrZrO3 formation and growth at La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)/Ce0.9Gd0.1O2 (GDC)/yttria-stabilized zirconia (YSZ) interfaces in solid oxide fuel cells (SOFCs). SrZrO3 forms first at the GDC/YSZ interface: at the interface between the GDC dense layer and the YSZ, at grain boundaries in the GDC dense layer, and on the surface of the GDC dense layer during the sintering of LSCF at 1100°C. Then, SrZrO3 grows to both sides of the YSZ electrolyte and the porous GDC layer. Electron energy loss spectroscopy revealed the inter-diffusion of La, Ce, and Gd as well as Sr and Zr in the vicinity of the GDC/YSZ interface. La was a solute in SrZrO3, and SrZrO3 exhibited a tetragonal crystal structure with a double pseudo-cubic perovskite sub-cell. Nucleation and growth of the SrZrO3 orthorhombic phase was observed at 800°C under an O2 atmosphere in an environmental TEM.

元の言語英語
ホスト出版物のタイトルECS Transactions
編集者T. Kawada, S. C. Singhal
出版者Electrochemical Society Inc.
ページ993-1001
ページ数9
エディション1
ISBN(電子版)9781607685395
DOI
出版物ステータス出版済み - 5 30 2017
イベント15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017 - Hollywood, 米国
継続期間: 7 23 20177 28 2017

出版物シリーズ

名前ECS Transactions
番号1
78
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

その他

その他15th International Symposium on Solid Oxide Fuel Cells, SOFC 2017
米国
Hollywood
期間7/23/177/28/17

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Matsuda, J., Kanae, S., Kawabata, T., Chou, J. T., Inoue, Y., Taniguchi, S., & Sasaki, K. (2017). TEM and ETEM study of SrZrO3 formation at LSCF/GDC/YSZ interfaces. : T. Kawada, & S. C. Singhal (版), ECS Transactions (1 版, pp. 993-1001). (ECS Transactions; 巻数 78, 番号 1). Electrochemical Society Inc.. https://doi.org/10.1149/07801.0993ecst