Theoretical study on chemical degradation mechanism of Nafion side chain by the attack of OH radical in polymer electrolyte fuel cell

T. Ishimoto, T. Ogura, M. Koyama

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    We theoretically analyzed the chemical degradation mechanism of Nafion side chain by OH radicals on the basis of density functional theory calculations. We found that the cleavage of the C-O bond in ether groups is a main pathway of the degradation from the Nafion side chain by OH radicals under well-hydrated condition. The ether group, which is located near the sulfo group, is vulnerable to the OH radical attack rather than the other ether group connecting the side chain with the polymer main chain.

    Original languageEnglish
    Title of host publicationComputational Electrochemistry
    Pages1-6
    Number of pages6
    Edition27
    DOIs
    Publication statusPublished - Dec 1 2011
    EventComputational Electrochemistry - 219th ECS Meeting - Montreal, QC, Canada
    Duration: May 1 2011May 6 2011

    Publication series

    NameECS Transactions
    Number27
    Volume35
    ISSN (Print)1938-5862
    ISSN (Electronic)1938-6737

    Other

    OtherComputational Electrochemistry - 219th ECS Meeting
    CountryCanada
    CityMontreal, QC
    Period5/1/115/6/11

    All Science Journal Classification (ASJC) codes

    • Engineering(all)

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