Hierarchical nanoporous nickel alloy as three-dimensional electrodes for high-efficiency energy storage

H. J. Qiu, Y. Ito, M. W. Chen

    Research output: Contribution to journalArticlepeer-review

    42 Citations (Scopus)

    Abstract

    Hierarchical nanoporous metals with a large surface area and rich pore channels are the sought-after nanostructure for many applications. Here we report a two-step dealloying approach to fabricate a hierarchical nanoporous Ni alloy by utilizing the chemical stability difference of the constituent elements in a multicomponent precursor. Due to the large surface area and high electric conductivity, the hierarchical nanoporous Ni alloy exhibits a high specific areal capacitance of ∼1.11 F cm-2 and volumetric capacitance of 317 F cm-3.

    Original languageEnglish
    Pages (from-to)69-72
    Number of pages4
    JournalScripta Materialia
    Volume89
    DOIs
    Publication statusPublished - 2014 Oct 15

    Keywords

    • Dealloying
    • Hierarchical structure
    • Nanoporous metal
    • Supercapacitor

    ASJC Scopus subject areas

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

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