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    Activation of a single-chamber solid oxide fuel cell by a simple catalyst-assisted in-situ process

    Access Status
    Fulltext not available
    Authors
    Zhang, C.
    Sun, L.
    Ran, R.
    Shao, Zongping
    Date
    2009
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhang, C. and Sun, L. and Ran, R. and Shao, Z. 2009. Activation of a single-chamber solid oxide fuel cell by a simple catalyst-assisted in-situ process. Electrochemistry Communications. 11 (8): pp. 1563-1566.
    Source Title
    Electrochemistry Communications
    DOI
    10.1016/j.elecom.2009.05.048
    ISSN
    1388-2481
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/42871
    Collection
    • Curtin Research Publications
    Abstract

    Initialization is a critical processing step that has thus far limited the application of the single-chamber solid oxide fuel cell (SC-SOFC). In-situ initialization of a SC-SOFC with a nickel-based anode by methane-air mixtures was investigated. Porous Ru-CeO2 was used as a catalyst layer over a Ni-ScSZ cermet anode. Catalytic testing demonstrated Ru-CeO2 had high activity for methane oxidation. The Ru in the catalyst layer catalyzed the formation of syngas, which successfully reduced the nickel oxide to metallic nickel in the anode. Single cells with a La0.8Sr0.2MnO3 (LSM) cathode, initialized by this in-situ reduction method, delivered peak power densities of 205 and 327 mW cm-2 at 800 °C and 850 °C, respectively. Such performances were better than those of the cell without the Ru-CeO2 catalyst layer that was initialized by an ex-situ reduction method were. © 2009 Elsevier B.V. All rights reserved.

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