Formation of Graphene-Wrapped Nanocrystals at Room Temperature through the Colloidal Coagulation Effect

Authors

  • Denghu Wei,

    1. Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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  • Jianwen Liang,

    1. Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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  • Yongchun Zhu,

    Corresponding author
    • Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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  • Zhengqiu Yuan,

    1. Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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  • Na Li,

    1. Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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  • Yitai Qian

    Corresponding author
    • Hefei National Laboratory for Physical, Science at Micro-scale, Department of Chemistry, University of Science and Technology of China, P. R. China
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E-mail: ychzhu@ustc.edu.cn, ytqian@ustc.edu.cn

Abstract

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Graphene-wrapped metal oxide nanocrystals, such as Fe2O3, Co3O4, and SnO2, with well-controlled size, shape, and density, are fabricated through a mechanism analogous to the colloidal coagulation effect at room temperature. A simple extension of this method yields Fe2O3/graphene composite, which is used for Li storage.

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