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Graphene chiral liquid crystals and macroscopic assembled fibres

Author

Listed:
  • Zhen Xu

    (MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)

  • Chao Gao

    (MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Zhejiang University)

Abstract

Chirality and liquid crystals are both widely expressed in nature and biology. Helical assembly of mesophasic molecules and colloids may produce intriguing chiral liquid crystals. To date, chiral liquid crystals of 2D colloids have not been explored. As a typical 2D colloid, graphene is now receiving unprecedented attention. However, making macroscopic graphene fibres is hindered by the poor dispersibility of graphene and by the lack of an assembly method. Here we report that soluble, chemically oxidized graphene or graphene oxide sheets can form chiral liquid crystals in a twist-grain-boundary phase-like model with simultaneous lamellar ordering and long-range helical frustrations. Aqueous graphene oxide liquid crystals were continuously spun into metres of macroscopic graphene oxide fibres; subsequent chemical reduction gave the first macroscopic neat graphene fibres with high conductivity and good mechanical performance. The flexible, strong graphene fibres were knitted into designed patterns and into directionally conductive textiles.

Suggested Citation

  • Zhen Xu & Chao Gao, 2011. "Graphene chiral liquid crystals and macroscopic assembled fibres," Nature Communications, Nature, vol. 2(1), pages 1-9, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1583
    DOI: 10.1038/ncomms1583
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    Cited by:

    1. Li, Yong & Yang, Jie & Song, Jian, 2017. "Structure models and nano energy system design for proton exchange membrane fuel cells in electric energy vehicles," Renewable and Sustainable Energy Reviews, Elsevier, vol. 67(C), pages 160-172.
    2. Li, Yong & Song, Jian & Yang, Jie, 2015. "Graphene models and nano-scale characterization technologies for fuel cell vehicle electrodes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 42(C), pages 66-77.
    3. Guangdong Chen & Hanwen Pei & Xuefei Zhang & Wei Shi & Mingjie Liu & Charl F. J. Faul & Bai Yang & Yan Zhao & Kun Liu & Zhongyuan Lu & Zhihong Nie & Yang Yang, 2022. "Liquid-crystalline behavior on dumbbell-shaped colloids and the observation of chiral blue phases," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. 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.

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