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    Initialization of a methane-fueled single-chamber solid-oxide fuel cell with NiO + SDC anode and BSCF + SDC cathode

    Access Status
    Fulltext not available
    Authors
    Zhang, C.
    Zheng, Y.
    Ran, R.
    Shao, Zongping
    Jin, W.
    Xu, N.
    Ahn, J.
    Date
    2008
    Type
    Journal Article
    
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    Citation
    Zhang, C. and Zheng, Y. and Ran, R. and Shao, Z. and Jin, W. and Xu, N. and Ahn, J. 2008. Initialization of a methane-fueled single-chamber solid-oxide fuel cell with NiO + SDC anode and BSCF + SDC cathode. Journal of Power Sources. 179 (2): pp. 640-648.
    Source Title
    Journal of Power Sources
    DOI
    10.1016/j.jpowsour.2008.01.030
    ISSN
    0378-7753
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/38974
    Collection
    • Curtin Research Publications
    Abstract

    The initialization of an anode-supported single-chamber solid-oxide fuel cell, with NiO + Sm0.2Ce0.8O1.9 anode and Ba0.5Sr0.5Co0.8Fe0.2O3-d + Sm0.2Ce0.8O1.9 cathode, was investigated. The initialization process had significant impact on the observed performance of the fuel cell. The in situ reduction of the anode by a methane-air mixture failed. Although pure methane did reduce the nickel oxide, it also resulted in severe carbon coking over the anode and serious distortion of the fuel cell. In situ initialization by hydrogen led to simultaneous reduction of both the anode and cathode; however, the cell still delivered a maximum power density of ~350 mW cm-2, attributed to the re-formation of the BSCF phase under the methane-air atmosphere at high temperatures. The ex situ reduction method appeared to be the most promising. The activated fuel cell showed a peak power density of ~570 mW cm-2 at a furnace temperature of 600 °C, with the main polarization resistance contributed from the electrolyte. © 2008 Elsevier B.V. All rights reserved.

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