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Facile Preparation of Ordered Porous Graphene–Metal Oxide@C Binder-Free Electrodes with High Li Storage Performance

Authors

  • Jixin Zhu,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. Department of Mechanical Engineering & Materials Science, Rice University, Houston, Texas 77005, USA
    3. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
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  • Dan Yang,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
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  • Xianhong Rui,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
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  • Daohao Sim,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
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  • Hong Yu,

    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
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  • Harry E. Hoster,

    1. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
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  • Pulickel M. Ajayan,

    1. Department of Mechanical Engineering & Materials Science, Rice University, Houston, Texas 77005, USA
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  • Qingyu Yan

    Corresponding author
    1. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081
    2. Energy Research Institute, Nanyang Technological University, TUM CREATE Centre for Electromobility, Singapore 637459, Singapore
    • School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Fax: (+)65 6790 9081.

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Abstract

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A facile and general method is reported to prepare ordered porous graphene-based binder-free electrodes on a large scale. This preparation process allows the easy adjustment of the selected components, weight ratio of componets, and the thickness of the electrodes. Such ordered porous electrodes demonstrate superior Li storage properties; for example, graphene–Fe3O4@C depicts high capacities of 1123.8 and 505 mAh g−1 at current densities of 0.5 and 10 A g−1, respectively.

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