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    Modelling the triple phase boundary length in infiltrated SOFC electrodes

    Access Status
    Fulltext not available
    Authors
    Vijay, P.
    Tade, Moses
    Shao, Zongping
    Ni, M.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Vijay, P. and Tade, M. and Shao, Z. and Ni, M. 2017. Modelling the triple phase boundary length in infiltrated SOFC electrodes. International Journal of Hydrogen Energy. 42 (48): pp. 28836-28851.
    Source Title
    International Journal of Hydrogen Energy
    DOI
    10.1016/j.ijhydene.2017.10.004
    ISSN
    0360-3199
    Faculty
    Faculty of Science and Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP150104365
    URI
    http://hdl.handle.net/20.500.11937/63289
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Hydrogen Energy Publications LLC A model based on the principles of coordination number and percolation theory is proposed for calculating the triple phase boundary (TPB) lengths in the Solid Oxide Fuel Cell (SOFC) electrodes infiltrated with nano particles. The TPB length is a critical microstructural property that influences the cell performance. Empirical expressions for the overall average coordination number and percolation probabilities are proposed to compliment the basic model framework provided by the coordination number principles. The comparison with the numerical and analytical model results from literature is used to both evaluate and interpret the proposed model. The model demonstrates reasonable agreement with literature model and experimental results and provides insights into the coordination number behaviour. This model is a potential alternative to the expensive numerical simulations for the microstructural optimisation of the infiltrated electrodes.

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