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A non-dispersion strategy for large-scale production of ultra-high concentration graphene slurries in water

Author

Listed:
  • Lei Dong

    (Fudan University
    National University of Singapore)

  • Zhongxin Chen

    (National University of Singapore
    Centre for Life Sciences)

  • Xiaoxu Zhao

    (National University of Singapore
    Centre for Life Sciences)

  • Jianhua Ma

    (Fudan University)

  • Shan Lin

    (Fudan University)

  • Mengxiong Li

    (Fudan University)

  • Yang Bao

    (National University of Singapore)

  • Leiqiang Chu

    (National University of Singapore)

  • Kai Leng

    (National University of Singapore)

  • Hongbin Lu

    (Fudan University)

  • Kian Ping Loh

    (National University of Singapore)

Abstract

It is difficult to achieve high efficiency production of hydrophobic graphene by liquid phase exfoliation due to its poor dispersibility and the tendency of graphene sheets to undergo π−π stacking. Here, we report a water-phase, non-dispersion exfoliation method to produce highly crystalline graphene flakes, which can be stored in the form of a concentrated slurry (50 mg mL−1) or filter cake for months without the risk of re-stacking. The as-exfoliated graphene slurry can be directly used for 3D printing, as well as fabricating conductive graphene aerogels and graphene−polymer composites, thus avoiding the use of copious quantities of organic solvents and lowering the manufacturing cost. This non-dispersion strategy paves the way for the cost-effective and environmentally friendly production of graphene-based materials.

Suggested Citation

  • Lei Dong & Zhongxin Chen & Xiaoxu Zhao & Jianhua Ma & Shan Lin & Mengxiong Li & Yang Bao & Leiqiang Chu & Kai Leng & Hongbin Lu & Kian Ping Loh, 2018. "A non-dispersion strategy for large-scale production of ultra-high concentration graphene slurries in water," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-017-02580-3
    DOI: 10.1038/s41467-017-02580-3
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    Cited by:

    1. Tiefeng Liu & Johanna Heimonen & Qilun Zhang & Chi-Yuan Yang & Jun-Da Huang & Han-Yan Wu & Marc-Antoine Stoeckel & Tom P. A. Pol & Yuxuan Li & Sang Young Jeong & Adam Marks & Xin-Yi Wang & Yuttapoom P, 2023. "Ground-state electron transfer in all-polymer donor:acceptor blends enables aqueous processing of water-insoluble conjugated polymers," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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