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Conversion of non-van der Waals solids to 2D transition-metal chalcogenides

Author

Listed:
  • Zhiguo Du

    (Beihang University)

  • Shubin Yang

    (Beihang University)

  • Songmei Li

    (Beihang University)

  • Jun Lou

    (Rice University)

  • Shuqing Zhang

    (Tsinghua University)

  • Shuai Wang

    (Beihang University)

  • Bin Li

    (Beihang University)

  • Yongji Gong

    (Beihang University)

  • Li Song

    (University of Science and Technology of China)

  • Xiaolong Zou

    (Tsinghua University)

  • Pulickel M. Ajayan

    (Rice University)

Abstract

Although two-dimensional (2D) atomic layers, such as transition-metal chalcogenides, have been widely synthesized using techniques such as exfoliation1–3 and vapour-phase growth4,5, it is still challenging to obtain phase-controlled 2D structures6–8. Here we demonstrate an effective synthesis strategy via the progressive transformation of non-van der Waals (non-vdW) solids to 2D vdW transition-metal chalcogenide layers with identified 2H (trigonal prismatic)/1T (octahedral) phases. The transformation, achieved by exposing non-vdW solids to chalcogen vapours, can be controlled using the enthalpies and vapour pressures of the reaction products. Heteroatom-substituted (such as yttrium and phosphorus) transition-metal chalcogenides can also be synthesized in this way, thus enabling a generic synthesis approach to engineering phase-selected 2D transition-metal chalcogenide structures with good stability at high temperatures (up to 1,373 kelvin) and achieving high-throughput production of monolayers. We anticipate that these 2D transition-metal chalcogenides will have broad applications for electronics, catalysis and energy storage.

Suggested Citation

  • Zhiguo Du & Shubin Yang & Songmei Li & Jun Lou & Shuqing Zhang & Shuai Wang & Bin Li & Yongji Gong & Li Song & Xiaolong Zou & Pulickel M. Ajayan, 2020. "Conversion of non-van der Waals solids to 2D transition-metal chalcogenides," Nature, Nature, vol. 577(7791), pages 492-496, January.
  • Handle: RePEc:nat:nature:v:577:y:2020:i:7791:d:10.1038_s41586-019-1904-x
    DOI: 10.1038/s41586-019-1904-x
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    Cited by:

    1. Shan, Pengyue & Bai, Xue & Jiang, Qi & Chen, Yunjian & Lu, Sen & Song, Pei & Jia, Zepeng & Xiao, Taiyang & Han, Yang & Wang, Yazhou & Liu, Tong & Cui, Hong & Feng, Rong & Kang, Qin & Liang, Zhiyong & , 2023. "Bilayer MN4-O-MN4 by bridge-bonded oxygen ligands: Machine learning to accelerate the design of bifunctional electrocatalysts," Renewable Energy, Elsevier, vol. 203(C), pages 445-454.

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