Study on functionally gradient proton exchange membrane fabricated by EB irradiation with heterogeneous energy deposition

Hajime Fujita, Fumiya Shiraki, Taeko Yoshikawa, Akihiro Oshima, Masakazu Washio

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    The revolutionary functionally gradient proton exchange membranes were fabricated by EB irradiation with heterogeneous energy deposition. These heterogeneous energy deposition profiles (Depth-Dose profiles) were simulated by Monte Carlo simulation code EGS5. In the process of EB-grafting method of styrene onto base fluorinated polymer, the energy depositions selected from the Depth-Dose profiles were used. The grafted membranes were sulfonated with chlorosulfonic acid in carbon tetrachloride. The DOGs in the direction of thickness showed that EB Depth-Dose profiles corresponded to the EB grafting reaction. The functionally gradient proton exchange membranes had a water uptake gradient in the direction of depth, and hence could be a promising solution to manage water behavior in Membrane Electrode Assembly (MEA) of Polymer Electrolyte Fuel Cell (PEFC).

    Original languageEnglish
    Pages (from-to)387-392
    Number of pages6
    JournalJournal of Photopolymer Science and Technology
    Volume23
    Issue number3
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    Protons
    Ion exchange
    Irradiation
    Membranes
    Fluorocarbon Polymers
    Carbon tetrachloride
    Styrene
    Water
    Carbon Tetrachloride
    Polymers
    Electrolytes
    Fuel cells
    Electrodes
    Acids
    Direction compound

    Keywords

    • EB
    • EB-grafting
    • Functionally gradient
    • PEFC
    • ULEB

    ASJC Scopus subject areas

    • Materials Chemistry
    • Polymers and Plastics
    • Organic Chemistry

    Cite this

    Study on functionally gradient proton exchange membrane fabricated by EB irradiation with heterogeneous energy deposition. / Fujita, Hajime; Shiraki, Fumiya; Yoshikawa, Taeko; Oshima, Akihiro; Washio, Masakazu.

    In: Journal of Photopolymer Science and Technology, Vol. 23, No. 3, 2010, p. 387-392.

    Research output: Contribution to journalArticle

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