Metallic mesoporous nanocomposites for electrocatalysis

Yi Ding, Mingwei Chen, Jonah Erlebacher

    Research output: Contribution to journalArticlepeer-review

    397 Citations (Scopus)

    Abstract

    We describe the fabrication, characterization, and applications of ultrathin, free-standing mesoporous metal membranes uniformly decorated with catalytically active nanoparticles. Platinum-plated nanoporous gold leaf (Pt-NPG) made by confining a plating reaction to occur within the pores of dealloyed silver/gold leaf is 100 nm thick and contains an extremely high, uniform dispersion of 3 nm diameter catalytic particles. This nanostructured composite holds promise as a prototypical member of a new class of fuel cell electrodes, showing good electrocatalytic performance at low platinum loading (less than 0.05 mg cm-2), while also maintaining long-term stability against coarsening and aggregation of catalytic nanoparticles.

    Original languageEnglish
    Pages (from-to)6876-6877
    Number of pages2
    JournalJournal of the American Chemical Society
    Volume126
    Issue number22
    DOIs
    Publication statusPublished - 2004 Jun 9

    ASJC Scopus subject areas

    • Catalysis
    • Chemistry(all)
    • Biochemistry
    • Colloid and Surface Chemistry

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