Electronic and local structures of La1-x SrxCoO 3-δ studied by in-situ micro XAS measurements

Koji Amezawa, Yuki Orikasa, Toshiaki Ina, Atsushi Unemoto, Maya Sase, Hidetaka Watanabe, Tomokazu Fukutsuka, Tatsuya Kawada, Yasuko Terada, Yoshiharu Uchimoto

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

Electronic and local structures of the perovskite-type La 0.6Sr0.4CoO3-δ, which is a promising cathode material for solid oxide fuel cells, were investigated by means of in-situ micro x-ray absorption spectroscopy measurements under working conditions of solid oxide fuel cells, 1073 K of temperature and 10-10 5 Pa of oxygen partial pressure. It was found that variations of electronic and local structures of La0.6Sr0.4CoO 3-δ depending on variations of ambient oxygen partial pressure were clearly detected and could be associated with formation/disappearance of oxygen vacancies in the oxide. It was shown that in-situ x-ray absorption spectroscopy measurements could be a useful tool to examine electronic and local structures of high temperature materials in use.

本文言語English
ホスト出版物のタイトルECS Transactions - Ionic and Mixed Conducting Ceramics 6 - 213th ECS Meeting
ページ161-164
ページ数4
26
DOI
出版ステータスPublished - 2008 12 1
イベントIonic and Mixed Conducting Ceramics 6 - 213th ECS Meeting - Phoenix, AZ, United States
継続期間: 2008 5 182008 5 23

出版物シリーズ

名前ECS Transactions
番号26
13
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

OtherIonic and Mixed Conducting Ceramics 6 - 213th ECS Meeting
CountryUnited States
CityPhoenix, AZ
Period08/5/1808/5/23

ASJC Scopus subject areas

  • Engineering(all)

フィンガープリント 「Electronic and local structures of La<sub>1-x</sub> Sr<sub>x</sub>CoO <sub>3-δ</sub> studied by in-situ micro XAS measurements」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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