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Synthesis of Discrete and Dispersible Hollow Carbon Nanospheres with High Uniformity by Using Confined Nanospace Pyrolysis

Authors

  • Prof. An-Hui Lu,

    Corresponding author
    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
    • State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Tao Sun,

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Prof. Wen-Cui Li,

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Qiang Sun,

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Fei Han,

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Dong-Hai Liu,

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • Yue Guo

    1. State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024 (P.R. China)
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  • The project was supported by the NSFC (nos. 20873014 and 21073026), the Program for New Century Excellent Talents in University of China (NCET-09-0254), and the Scientific Research Foundation for the Returned Overseas Chinese Scholars.

Abstract

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Many spheres of influence: Surface coating of monodisperse polystyrene (PS) nanosphere seeds with a phenol-containing polymer (PF) and then silica forms a dual core–shell structure PS@PF@SiO2 (see picture). Subsequent pyrolysis results in discrete, dispersible, and uniform hollow carbon nanospheres (HCSs). The outer silica shell serves as a nanoreactor and thus prevents the polymer and carbon layers from conglutination and sintering.

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