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Acid enhanced zipping effect to densify MWCNT packing for multifunctional MWCNT films with ultra-high electrical conductivity

Author

Listed:
  • Hong Wang

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

  • Xu Sun

    (Xi’an Jiaotong University)

  • Yizhuo Wang

    (Xi’an Jiaotong University)

  • Kuncai Li

    (Xi’an Jiaotong University)

  • Jing Wang

    (Xi’an Jiaotong University)

  • Xu Dai

    (Xi’an Jiaotong University)

  • Bin Chen

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

  • Daotong Chong

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

  • Liuyang Zhang

    (Xi’an Jiaotong University)

  • Junjie Yan

    (Xi’an Jiaotong University
    Xi’an Jiaotong University)

Abstract

The outstanding electrical and mechanical properties remain elusive on macroscopic carbon nanotube (CNT) films because of the difficult material process, which limits their wide practical applications. Herein, we report high-performance multifunctional MWCNT films that possess the specific electrical conductivity of metals as well as high strength. These MWCNT films were synthesized by a floating chemical vapor deposition method, purified at high temperature and treated with concentrated HCl, and then densified due to the developed chlorosulfonic acid-enhanced zipping effect. These large scalable films exhibit high electromagnetic interference shielding efficiency, high thermoelectric power factor, and high ampacity because of the densely packed crystalline structure of MWCNTs, which are promising for practical applications.

Suggested Citation

  • Hong Wang & Xu Sun & Yizhuo Wang & Kuncai Li & Jing Wang & Xu Dai & Bin Chen & Daotong Chong & Liuyang Zhang & Junjie Yan, 2023. "Acid enhanced zipping effect to densify MWCNT packing for multifunctional MWCNT films with ultra-high electrical conductivity," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-36082-2
    DOI: 10.1038/s41467-023-36082-2
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    References listed on IDEAS

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    1. Natsumi Komatsu & Yota Ichinose & Oliver S. Dewey & Lauren W. Taylor & Mitchell A. Trafford & Yohei Yomogida & Geoff Wehmeyer & Matteo Pasquali & Kazuhiro Yanagi & Junichiro Kono, 2021. "Macroscopic weavable fibers of carbon nanotubes with giant thermoelectric power factor," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    2. Chandramouli Subramaniam & Takeo Yamada & Kazufumi Kobashi & Atsuko Sekiguchi & Don N. Futaba & Motoo Yumura & Kenji Hata, 2013. "One hundred fold increase in current carrying capacity in a carbon nanotube–copper composite," Nature Communications, Nature, vol. 4(1), pages 1-7, October.
    3. R. S. Lee & H. J. Kim & J. E. Fischer & A. Thess & R. E. Smalley, 1997. "Conductivity enhancement in single-walled carbon nanotube bundles doped with K and Br," Nature, Nature, vol. 388(6639), pages 255-257, July.
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