Three-dimensional nanoporous gold for electrochemical supercapacitors

X. Y. Lang, H. T. Yuan, Y. Iwasa, M. W. Chen

    Research output: Contribution to journalArticlepeer-review

    83 Citations (Scopus)

    Abstract

    We report the capacitive performances of an electrochemical supercapacitor with three-dimensional nanoporous gold (NPG) as both current collectors and electrodes. The bicontinuous NPG with a large internal surface and high conductivity shows promising capacitive properties in both a conventional aqueous electrolyte and a green ionic liquid electrolyte. In comparison with the performance in the aqueous electrolyte, the NPG-based supercapacitor in the ionic liquid electrolyte shows higher energy density because of the high operation voltage arising from the low ionic mobility of the room-temperature ionic liquid.

    Original languageEnglish
    Pages (from-to)923-926
    Number of pages4
    JournalScripta Materialia
    Volume64
    Issue number9
    DOIs
    Publication statusPublished - 2011 May

    Keywords

    • Double-layer capacitor
    • Electrochemical capacitor
    • Energy storage
    • Nanoporous gold

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys

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