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2D Sandwich-like Sheets of Iron Oxide Grown on Graphene as High Energy Anode Material for Supercapacitors

Authors

  • Qunting Qu,

    1. College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
    2. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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  • Shubin Yang,

    1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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  • Xinliang Feng

    Corresponding author
    1. College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
    2. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
    • College of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
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Abstract

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2D sandwich-like sheets of iron oxide grown on graphene as high energy anode material for supercapacitors are prepared from the direct growth of FeOOH nanorods on the surface of graphene and the subsequent electrochemical transformation of FeOOH to Fe3O4. The Fe3O4@RGO nanocomposites exhibit superior capacitance (326 F g−1), high energy density (85 Wh kg−1), large power, and good cycling performance in 1 mol L−1 LiOH solution.

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