A High-Performance, Nanostructured Ba0.5Sr0.5Co0.8Fe0.2O3-δ Cathode for Solid-Oxide Fuel Cells

Authors

  • Bin Liu,

    1. Lawrence Berkeley National Laboratory University of California, Berkeley, 94720, USA
    2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China, 116023
    3. Graduate University of the Chinese Academy of Sciences, Beijing, 100039, China
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  • Xiaobo Chen,

    1. Lawrence Berkeley National Laboratory University of California, Berkeley, 94720, USA
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  • Yonglai Dong,

    1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China, 116023
    2. Graduate University of the Chinese Academy of Sciences, Beijing, 100039, China
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  • Samuel S. Mao,

    Corresponding author
    1. Lawrence Berkeley National Laboratory University of California, Berkeley, 94720, USA
    • Lawrence Berkeley National Laboratory University of California, Berkeley, 94720, USA
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  • Mojie Cheng

    Corresponding author
    1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China, 116023
    • Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China, 116023.
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Abstract

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Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) cathodes are prepared on NiO-yttria-stabilized zirconia (YSZ)/YSZ composite substrates using pulsed laser deposition (PLD) and the screen-printing method. The cathode by PLD outperforms that by screen-printing, with an enhancement of over 150% in the maximum power, which can be attributed to the PLD-enabled smaller internal resistance within the cathode and the reduced interfacial resistance between the cathode and the electrolyte.

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