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High-Performance Supercapacitors Based on Nanocomposites of Nb2O5 Nanocrystals and Carbon Nanotubes

Authors

  • Xiaolei Wang,

    1. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Ge Li,

    1. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
    2. Department of Physics, East China Normal University, Shanghai, 200241, China
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Zheng Chen,

    1. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
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  • Veronica Augustyn,

    1. Department of Material Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
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  • Xueming Ma,

    1. Department of Physics, East China Normal University, Shanghai, 200241, China
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  • Ge Wang,

    Corresponding author
    1. School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China
    • School of Materials Science and Engineering, University of Science and Technology, Beijing, Beijing, 100083, China
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  • Bruce Dunn,

    1. Department of Material Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
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  • Yunfeng Lu

    Corresponding author
    1. Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA
    • Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90034, USA.
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Abstract

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Nanocomposites of CNTs and Nb2O5 nanocrystals were fabricated exhibiting excellent conductivity, high specific capacitance, and large voltage window, which led to successful fabrication of asymmetric supercapacitors with high energy densities, power densities, and cycling stability.

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