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  • Facile Synthesis of CoWO4 Nanosheet Arrays Grown on Nickel Foam Substrates for Asymmetric Supercapacitors

    Author(s)
    Chen, Sanming
    Yang, Guang
    Jia, Yi
    Zheng, Huajun
    Griffith University Author(s)
    Jia, Yi
    Year published
    2016
    Metadata
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    Abstract
    Well‐aligned CoWO4 nanosheet arrays grown on nickel foam substrates have been fabricated by using a facile hydrothermal process. The interconnected CoWO4 nanosheets with abundant open spaces are uniformly deposited on the skeleton of the nickel foam. When investigated as binder‐free electrodes for supercapacitors, the CoWO4 nanosheet arrays exhibit a specific capacitance of 1127.6 F g−1 at 1 A g−1 and remarkable cycle performance. Moreover, an asymmetric supercapacitor (ASC) is assembled by using CoWO4 nanosheets and activated carbon as the positive electrode and negative electrode, respectively. The ASC device delivers a ...
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    Well‐aligned CoWO4 nanosheet arrays grown on nickel foam substrates have been fabricated by using a facile hydrothermal process. The interconnected CoWO4 nanosheets with abundant open spaces are uniformly deposited on the skeleton of the nickel foam. When investigated as binder‐free electrodes for supercapacitors, the CoWO4 nanosheet arrays exhibit a specific capacitance of 1127.6 F g−1 at 1 A g−1 and remarkable cycle performance. Moreover, an asymmetric supercapacitor (ASC) is assembled by using CoWO4 nanosheets and activated carbon as the positive electrode and negative electrode, respectively. The ASC device delivers a maximum energy density of 48 Wh kg−1 at a power density of 365 W kg−1. The results demonstrate that CoWO4 nanosheet arrays could be potential electrode materials for energy‐storage systems.
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    Journal Title
    ChemElectroChem
    Volume
    3
    Issue
    9
    DOI
    https://doi.org/10.1002/celc.201600316
    Subject
    Analytical chemistry
    Physical chemistry
    Other chemical sciences
    Other chemical sciences not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/100406
    Collection
    • Journal articles

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