Correlation between the carbon structures and their tolerance to carbon corrosion as catalyst supports for polymer electrolyte fuel cells

Takanori Tamaki, Hailin Wang, Nobuto Oka, Itaru Honma, Seong Ho Yoon, Takeo Yamaguchi

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)

    Abstract

    The tolerance to corrosion of cathode catalyst supports comprising carbon nanofibers with differing alignments of graphene layers was evaluated, and its correlation with structural parameters obtained from Raman spectra was discussed. The carbon nanofibers employed in this study were platelet-type carbon nanofibers (PCNF) and tubular carbon nanofibers (TCNF). The tolerance to carbon corrosion was evaluated in a membrane electrode assembly using a start-stop durability testing protocol. While the ratio of the D band peak intensity to that of the G band (ID/IG) does not show any correlation with tolerance to carbon corrosion, full width at half maximum of the G band (FWHM(G)) correlates well with tolerance to carbon corrosion. The results suggest that carbon materials with low FWHM(G) values are promising as cathode catalyst supports in PEFCs.

    Original languageEnglish
    Pages (from-to)6406-6412
    Number of pages7
    JournalInternational Journal of Hydrogen Energy
    Volume43
    Issue number12
    DOIs
    Publication statusPublished - 2018 Mar 22

    Keywords

    • Carbon nanofiber
    • Degree of graphitization
    • Durability
    • Polymer electrolyte fuel cell
    • Raman spectroscopy

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Fuel Technology
    • Condensed Matter Physics
    • Energy Engineering and Power Technology

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