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Leaf-like Graphene Oxide with a Carbon Nanotube Midrib and Its Application in Energy Storage Devices

Authors

  • Ziyang Guo,

    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
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  • Jie Wang,

    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
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  • Fei Wang,

    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
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  • DanDan Zhou,

    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
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  • Yongyao Xia,

    Corresponding author
    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
    • Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China.
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  • Yonggang Wang

    Corresponding author
    1. Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China
    • Department of Chemistry and Shanghai, Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, Fudan University, Shanghai 200433, China.
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Abstract

Graphene oxide (GO) has recently attracted a great deal of attention because of its heterogeneous chemical and electronic structures and its consequent exhibition of a wide range of potential applications, such as plastic electronics, optical materials, solar cells, and biosensors. However, its insulating nature also limits its application in some electronic and energy storage devices. In order to further widen the applications of GO, it is necessary to keep its inherent characteristics while improving its conductivity. Here, a novel leaf-like GO with a carbon nanotube (CNT) midrib is developed using vapor growth carbon fiber (VGCF) through the conventional Hummers method. The CNT midrib provides a natural electron diffusion path for the leaf-like GO, and therefore, this leaf-like GO with a CNT midrib displays excellent performance when applied in energy storage devices, including Li-O2 batteries, Li-ion batteries, and supercapacitors.

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