Sm(Sr)CoO3 cone cathode on LaGaO3 thin film electrolyte for IT-SOFC with high power density

Young Wan Ju, Toru Inagaki, Shintaro Ida, Tatsumi Ishihara

    研究成果: Contribution to journalArticle査読

    22 被引用数 (Scopus)

    抄録

    Cone-shaped Sm0.5Sr0.5CoO3- (SSC) layer was fabricated by a pulsed laser deposition (PLD) method on the Sm 0.2Ce0.8O2- (SDC)/La0.9Sr 0.1Ga0.8Mg0.2O3- (LSGM) bi-layer electrolyte film for metallic anode supported intermediate temperature solid oxide fuel cells. Effect of SSC layer on the power generation property and optimum fabrication condition of SSC layer has been investigated. By inserting SSC layer, power generation property and thermal cycling durability was improved due to increased contact strength and expanded oxygen ion conduction pathway. Especially, the cell having 500 nm thickness SSC layer showed higher power density than that of the cell without SSC layer. The maximum power density (MPD) of the cell was 1.99, 1.10 and 0.53 W/cm2 at 973, 873 and 773 K, respectively. In addition, after third thermal cycling from 973 to 298 K (decreasing and increasing rate; 200 K/h), the decrease in MPD was only 6. The cell also showed a stable power generating performance under a constant current condition.

    本文言語英語
    ジャーナルJournal of the Electrochemical Society
    158
    7
    DOI
    出版ステータス出版済み - 6 1 2011

    All Science Journal Classification (ASJC) codes

    • 電子材料、光学材料、および磁性材料
    • 再生可能エネルギー、持続可能性、環境
    • 表面、皮膜および薄膜
    • 電気化学
    • 材料化学

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