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Elastic properties and tensile strength of 2D Ti3C2Tx MXene monolayers

Author

Listed:
  • Chao Rong

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Ting Su

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Zhenkai Li

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Tianshu Chu

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Mingliang Zhu

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Yabin Yan

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Bowei Zhang

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

  • Fu-Zhen Xuan

    (East China University of Science and Technology
    East China University of Science and Technology
    East China University of Science and Technology)

Abstract

Two-dimensional (2D) transition metal nitrides and carbides (MXenes), represented by Ti3C2Tx, have broad applications in flexible electronics, electromechanical devices, and structural membranes due to their unique physical and chemical properties. Despite the Young’s modulus of 2D Ti3C2Tx has been theoretically predicted to be 0.502 TPa, which has not been experimentally confirmed so far due to the measurement is extremely restricted. Here, by optimizing the sample preparation, cutting, and transfer protocols, we perform the direct in-situ tensile tests on monolayer Ti3C2Tx nanosheets using nanomechanical push-to-pull equipment under a scanning electron microscope. The effective Young’s modulus is 0.484 ± 0.013 TPa, which is much closer to the theoretical value of 0.502 TPa than the previously reported 0.33 TPa by the disputed nanoindentation method, and the measured elastic stiffness is ~948 N/m. Moreover, during the process of tensile loading, the monolayer Ti3C2Tx shows an average elastic strain of ~3.2% and a tensile strength as large as ~15.4 GPa. This work corrects the previous reports by nanoindentation method and demonstrates that the Ti3C2Tx indeed keeps immense potential for broad range of applications.

Suggested Citation

  • Chao Rong & Ting Su & Zhenkai Li & Tianshu Chu & Mingliang Zhu & Yabin Yan & Bowei Zhang & Fu-Zhen Xuan, 2024. "Elastic properties and tensile strength of 2D Ti3C2Tx MXene monolayers," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45657-6
    DOI: 10.1038/s41467-024-45657-6
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    References listed on IDEAS

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    1. Ke Cao & Shizhe Feng & Ying Han & Libo Gao & Thuc Hue Ly & Zhiping Xu & Yang Lu, 2020. "Elastic straining of free-standing monolayer graphene," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    2. Peng Zhang & Lulu Ma & Feifei Fan & Zhi Zeng & Cheng Peng & Phillip E. Loya & Zheng Liu & Yongji Gong & Jiangnan Zhang & Xingxiang Zhang & Pulickel M. Ajayan & Ting Zhu & Jun Lou, 2014. "Fracture toughness of graphene," Nature Communications, Nature, vol. 5(1), pages 1-7, September.
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