Durability of the electrocatalyst fabricated based on carbon nanotubes

T. Fujigaya, M. R. Berber, N. Nakashima

    研究成果: Chapter in Book/Report/Conference proceedingConference contribution

    1 被引用数 (Scopus)

    抄録

    We describe the fabrication of a well-defined carbon nanotubes (CNTs)-based composite, in which the CNTs are individually wrapped by a polymer in homogeneous fashion and platinum nanoparticles (Pt) are immobilized on the polymer-wrapped CNTs. Polybenzimidazoles (PBIs) are used for the wrapping polymer since a strong adsorption of PBIs onto the CNT surfaces enables the exfoliation of CNT bundles and nanometer-thick PBI wrapping layer serves as a glue for the efficient immobilization of Pt. We demonstrate the use of the composite for the polymer electrolyte fuel cell (PEFC) electrocatalyst after acid doping. Single cell tests reveal that the ultra-thin PBI-wrapping layer around the CNTs serves as a proton conducting layer to deliver protons in the catalyst membrane. PEFCs using the composite show an excellent fuel cell performance at 120 °C under non-humid atmosphere, whereas the conventional Nafion-based PEFCs are not workable in such condition. Durability of the electrocatalyst was studied.

    本文言語英語
    ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 12, PEFC 2012
    出版社Electrochemical Society Inc.
    ページ1309-1314
    ページ数6
    2
    ISBN(印刷版)9781607683506
    DOI
    出版ステータス出版済み - 2013
    イベント12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, 米国
    継続期間: 10 7 201210 12 2012

    出版物シリーズ

    名前ECS Transactions
    番号2
    50
    ISSN(印刷版)1938-5862
    ISSN(電子版)1938-6737

    その他

    その他12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
    国/地域米国
    CityHonolulu, HI
    Period10/7/1210/12/12

    All Science Journal Classification (ASJC) codes

    • 工学(全般)

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