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Direct exfoliation and dispersion of two-dimensional materials in pure water via temperature control

Author

Listed:
  • Jinseon Kim

    (Mechanical Test & Analysis Section, Korea Electric Power Corporation Nuclear Fuel)

  • Sanghyuk Kwon

    (School of Mechanical Engineering, Sungkyunkwan University)

  • Dae-Hyun Cho

    (The Ohio State University)

  • Byunggil Kang

    (SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Hyukjoon Kwon

    (SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Youngchan Kim

    (SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Sung O. Park

    (School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology)

  • Gwan Yeong Jung

    (School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology)

  • Eunhye Shin

    (School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology)

  • Wan-Gu Kim

    (Sungkyunkwan University)

  • Hyungdong Lee

    (School of Mechanical Engineering, Sungkyunkwan University)

  • Gyeong Hee Ryu

    (School of Materials Science and Engineering, Ulsan National Institute of Science and Technology)

  • Minseok Choi

    (New Material Team, LG Electronics Advanced Research Institute)

  • Tae Hyeong Kim

    (New Material Team, LG Electronics Advanced Research Institute)

  • Junghoon Oh

    (Inha University)

  • Sungjin Park

    (Inha University)

  • Sang Kyu Kwak

    (School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology)

  • Suk Wang Yoon

    (Sungkyunkwan University)

  • Doyoung Byun

    (School of Mechanical Engineering, Sungkyunkwan University)

  • Zonghoon Lee

    (School of Materials Science and Engineering, Ulsan National Institute of Science and Technology)

  • Changgu Lee

    (School of Mechanical Engineering, Sungkyunkwan University
    SKKU Advanced Institute of Nanotechnology, Sungkyunkwan University)

Abstract

The high-volume synthesis of two-dimensional (2D) materials in the form of platelets is desirable for various applications. While water is considered an ideal dispersion medium, due to its abundance and low cost, the hydrophobicity of platelet surfaces has prohibited its widespread use. Here we exfoliate 2D materials directly in pure water without using any chemicals or surfactants. In order to exfoliate and disperse the materials in water, we elevate the temperature of the sonication bath, and introduce energy via the dissipation of sonic waves. Storage stability greater than one month is achieved through the maintenance of high temperatures, and through atomic and molecular level simulations, we further discover that good solubility in water is maintained due to the presence of platelet surface charges as a result of edge functionalization or intrinsic polarity. Finally, we demonstrate inkjet printing on hard and flexible substrates as a potential application of water-dispersed 2D materials.

Suggested Citation

  • Jinseon Kim & Sanghyuk Kwon & Dae-Hyun Cho & Byunggil Kang & Hyukjoon Kwon & Youngchan Kim & Sung O. Park & Gwan Yeong Jung & Eunhye Shin & Wan-Gu Kim & Hyungdong Lee & Gyeong Hee Ryu & Minseok Choi &, 2015. "Direct exfoliation and dispersion of two-dimensional materials in pure water via temperature control," Nature Communications, Nature, vol. 6(1), pages 1-9, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9294
    DOI: 10.1038/ncomms9294
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    Cited by:

    1. Hao Zhang & Qixuan Xiang & Zhiyuan Liu & Xianglong Zhang & Yaping Zhao & Huijun Tan, 2024. "Supercritical mechano-exfoliation process," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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