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Bidirectionally promoting assembly order for ultrastiff and highly thermally conductive graphene fibres

Author

Listed:
  • Peng Li

    (Zhejiang University)

  • Ziqiu Wang

    (Zhejiang University)

  • Yuxiang Qi

    (Zhejiang University)

  • Gangfeng Cai

    (Zhejiang University)

  • Yingjie Zhao

    (Tsinghua University)

  • Xin Ming

    (Zhejiang University)

  • Zizhen Lin

    (Tsinghua University)

  • Weigang Ma

    (Tsinghua University)

  • Jiahao Lin

    (Zhejiang University)

  • Hang Li

    (Zhejiang University)

  • Kai Shen

    (Zhejiang University)

  • Yingjun Liu

    (Zhejiang University
    Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering)

  • Zhen Xu

    (Zhejiang University
    Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering)

  • Zhiping Xu

    (Tsinghua University)

  • Chao Gao

    (Zhejiang University
    Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering)

Abstract

Macroscopic fibres assembled from two-dimensional (2D) nanosheets are new and impressing type of fibre materials besides those from one-dimensional (1D) polymers, such as graphene fibres. However, the preparation and property-enhancing technologies of these fibres follow those from 1D polymers by improving the orientation along the fibre axis, leading to non-optimized microstructures and low integrated performances. Here, we show a concept of bidirectionally promoting the assembly order, making graphene fibres achieve synergistically improved mechanical and thermal properties. Concentric arrangement of graphene oxide sheets in the cross-section and alignment along fibre axis are realized by multiple shear-flow fields, which bidirectionally promotes the sheet-order of graphene sheets in solid fibres, generates densified and crystalline graphitic structures, and produces graphene fibres with ultrahigh modulus (901 GPa) and thermal conductivity (1660 W m−1 K−1). We believe that the concept would enhance both scientific and technological cognition of the assembly process of 2D nanosheets.

Suggested Citation

  • Peng Li & Ziqiu Wang & Yuxiang Qi & Gangfeng Cai & Yingjie Zhao & Xin Ming & Zizhen Lin & Weigang Ma & Jiahao Lin & Hang Li & Kai Shen & Yingjun Liu & Zhen Xu & Zhiping Xu & Chao Gao, 2024. "Bidirectionally promoting assembly order for ultrastiff and highly thermally conductive graphene fibres," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-44692-7
    DOI: 10.1038/s41467-024-44692-7
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    References listed on IDEAS

    as
    1. Zhen Xu & Chao Gao, 2011. "Graphene chiral liquid crystals and macroscopic assembled fibres," Nature Communications, Nature, vol. 2(1), pages 1-9, September.
    2. Peng Li & Mincheng Yang & Yingjun Liu & Huasong Qin & Jingran Liu & Zhen Xu & Yilun Liu & Fanxu Meng & Jiahao Lin & Fang Wang & Chao Gao, 2020. "Continuous crystalline graphene papers with gigapascal strength by intercalation modulated plasticization," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
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