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    Mesoporous Nafion Membranes for Fuel Cell Applications

    Access Status
    Fulltext not available
    Authors
    Jiang, San Ping
    Lu, J.
    Date
    2011
    Type
    Journal Article
    
    Metadata
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    Citation
    Jiang, San Ping and Lu, Jinlin. 2011. Mesoporous Nafion Membranes for Fuel Cell Applications. ECS Transactions. 41 (1): pp. 1555-1560.
    Source Title
    ECS Transactions, Vol. 41(1)
    Source Conference
    220th Electrochemical Society meeting
    DOI
    10.1149/1.3635687
    School
    Department of Chemical Engineering
    Remarks

    Copyright © 2011 The Electrochemical Society

    URI
    http://hdl.handle.net/20.500.11937/48367
    Collection
    • Curtin Research Publications
    Abstract

    Ordered mesoporous structures were successfully introduced into Nafion membranes via a soft micelle templating method, using a nonionic block copolymer surfactant, PEO127-PPO48-PEO127 (Pluronic F108). The mesoporous Nafion or meso-Nafion membranes were characterized by the AFM, SAXS, TGA and conductivity measurements. The results show that the meso-Nafion has a very high water retention capability. The proton conductivities of meso-Nafion are also much higher than that of Nafion 115 membranes particularly at reduced relative humidity (RH) and elevated temperatures. At 80˚C and 40%RH, the conductivity of meso-Nafion is 0.07 Scm-1, more than 3 times better than Nafion 115. At 60%RH and 80˚C, the cell with meso-Nafion reached a stable power output of 0.63 Wcm-2, more than 2 times higher than the cell with pristine Nafion 115 under identical experimental conditions. The cells with meso-Nafion membrane also demonstrate much better stability at elevated temperature of 120˚C and reduced humidities.

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