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Three-Dimensional Hierarchically Ordered Porous Carbons with Partially Graphitic Nanostructures for Electrochemical Capacitive Energy Storage

Authors

  • Chun-Hsien Huang,

    1. Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu 30013 (Taiwan), Fax: (+886) 3-5718649
    2. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany)
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  • Dr. Qiang Zhang,

    1. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany)
    2. Department of Chemical Engineering, Tsinghua University, Beijing 100084 (P.R. China)
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  • Tsu-Chin Chou,

    1. Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu 30013 (Taiwan), Fax: (+886) 3-5718649
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  • Cheng-Meng Chen,

    1. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany)
    2. Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taoyuan South Road 27, Taiyuan 030001 (P.R. China)
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  • Dr. Dang Sheng Su,

    Corresponding author
    1. Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany)
    2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Science, 72 Wenhua Road, Shenyang 110016 (P.R. China)
    • Department of Inorganic Chemistry, Fritz Haber Institute of the Max Planck Society, Faradayweg 4–6, Berlin 14195 (Germany)
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  • Prof. Ruey-An Doong

    Corresponding author
    1. Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu 30013 (Taiwan), Fax: (+886) 3-5718649
    • Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu 30013 (Taiwan), Fax: (+886) 3-5718649
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Abstract

Three-dimensional, hierarchically ordered, porous carbon (HOPC) with designed porous textures, serving as an ion-buffering reservoir, an ion-transport channel, and a charge-storage material, is expected to be advanced an energy material for high-rate supercapacitors. Herein, HOPC without/with partially graphitic nanostructures have been directly synthesized by means of a simple one-pot synthesis procedure. The designed porous textures of the 3D HOPC materials are composed of highly ordered, fcc macroporous (300 nm), interconnected porous structures, including macroporous windows (170 nm), hexagonally ordered mesopores (5.0 nm), and useful micropores (1.2 nm). 3D HOPC-g-1000 (g=graphitic, 1000=pyrolysis temperature of 1000 °C) with partially graphitic nanostructures has a low specific surface area (296 m2 g−1) and a low gravimetric specific capacitance (73.4 F g−1 at 3 mV s−1), but improved electrical conductivity, better rate performance, higher electrolyte accessibility (24.8 μF cm−2 at 3 mV s−1), faster frequency response (≈1 Hz), and excellent cycling performance (>5400 cycles). The specific capacitance per surface area is higher than that of conventional porous carbons, carbon nanotubes, and modified graphene (10–19 μF cm−2).

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