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General Solution Growth of Mesoporous NiCo2O4 Nanosheets on Various Conductive Substrates as High-Performance Electrodes for Supercapacitors

Authors

  • Genqiang Zhang,

    1. TUM-CREATE Centre for Electromobility, 62 Nanyang Drive, Singapore, 637459, Singapore
    2. School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
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  • Xiong Wen (David) Lou

    Corresponding author
    1. TUM-CREATE Centre for Electromobility, 62 Nanyang Drive, Singapore, 637459, Singapore
    2. School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
    • TUM-CREATE Centre for Electromobility, 62 Nanyang Drive, Singapore, 637459, Singapore.
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Abstract

Mesoporous NiCo2O4 nanosheets can be directly grown on various conductive substrates, such as Ni foam, Ti foil, stainless-steel foil and flexible graphite paper, through a general template-free solution method combined with a simple post annealing treatment. As a highly integrated binder- and conductive-agent-free electrode for supercapacitors, the mesoporous NiCo2O4 nanosheets supported on Ni foam deliver ultrahigh capacitance and excellent high-rate cycling stability.

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