Effects of metal additives on power generating property of direct hydrocarbon type SOFC using LaGaO3 electrolyte

T. Ishihara, T. H. Shin, S. Ida

    研究成果: ジャーナルへの寄稿学術誌査読

    2 被引用数 (Scopus)

    抄録

    Composite oxides have been attracting great interest recently as alternative materials for SOFC anodes with the potential to overcome the serious deterioration in performance associated with the traditional Ni-based cermet; in particular, oxide based anodes show enhanced carbon coke and re-oxidation tolerance compared to present Ni-based cermets. In this study, the anodic performance of a (Ce,Mn,Fe)O2/(La,Sr)(Fe,Mn)O3 composite oxide with additions of catalytically active RuO2 nano particle was studied. Fairly high maximum power densities of 0.3 Wcm-2 (in H 2) and 1.5 Wcm-2 (in C3H8) at 800 °C were achieved for anodes with 10 wt% RuO2 addition. The cells showed stable power density, and negligible carbon formation, even after operation for more than 50 h at 1Acm-2. The improved power density was explained by decreased anodic overpotential and IR losses because of the improved electrical conductivity contributed by the RuO2 particles.

    本文言語英語
    ページ(範囲)1217-1223
    ページ数7
    ジャーナルECS Transactions
    57
    1
    DOI
    出版ステータス出版済み - 2013

    !!!All Science Journal Classification (ASJC) codes

    • 工学一般

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