Plasma based platinum nanoaggregates deposited on carbon nanofibers improve fuel cell efficiency

Amael Caillard*, Christine Charles, Rod Boswell, Pascal Brault, Christophe Coutanceau

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    49 Citations (Scopus)

    Abstract

    Improved platinum catalytic utilization has been achieved by creating an open support structure based on aligned carbon nanofibers (CNFs) attached to carbon loaded carbon cloth electrodes [known as gas diffusion layer (GDL)]. The nickel catalyst used to initiate the CNFs growth; the CNFs themselves and the 5 nm Pt nanoaggregates were deposited sequentially in the same low pressure plasma reactor. This oriented catalyst structure was incorporated into a membrane electrode assembly and tested with and without CNFs and on carbon paper or GDL. The performance of the fuel cells based on CNFs and GDL was better over the entire range of operating current.

    Original languageEnglish
    Article number223119
    JournalApplied Physics Letters
    Volume90
    Issue number22
    DOIs
    Publication statusPublished - 2007

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