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Controlled Exfoliation of MoS2 Crystals into Trilayer Nanosheets
Abstract
The controlled exfoliation of transition metal dichalcogenides (TMDs) into pristine single- or few-layer nanosheets remains a significant barrier to fundamental studies and device applications of TMDs. Here we report a novel strategy for exfoliating crystalline MoS2 into suspensions of nanosheets with retention of the semiconducting 2H phase. The controlled reaction of MoS2 with substoichiometric amounts n-butyllithium results in intercalation of the edges of the crystals, which are then readily exfoliated in a 45 vol % ethanol-water solution. Surprisingly, the resulting colloidal suspension of nanosheets was found (by electron microscopy and atomic force microscopy) to consist mostly of trilayers. The efficiency of exfoliation of the pre-intercalated sample is increased by at least 1 order of magnitude relative to the starting MoS2 microcrystals, with a mass yield of the dispersed nanosheets of 11-15%.
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Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets
Chhowalla, M., Shin, H. S., Eda, G., Li, L.-J., Loh, K. P., & Zhang, H. (2013) · Nature Chemistry · doi:10.1038/nchem.1589 · Cited by 10,034
Enhanced catalytic activity in strained chemically exfoliated WS2 nanosheets for hydrogen evolution
Voiry, D., Yamaguchi, H., Li, J., Silva, R., Alves, D. C. B., Fujita, T., Chen, M., Asefa, T., Shenoy, V. B., Eda, G., et al. (2013) · Nature Materials · doi:10.1038/nmat3700 · Cited by 2,641
Two-dimensional transition metal dichalcogenide nanosheet-based composites
Tan, C., & Zhang, H. (2015) · Chemical Society Reviews · doi:10.1039/c4cs00182f · Cited by 1,605
High yield exfoliation of two-dimensional chalcogenides using sodium naphthalenide
Zheng, J., Zhang, H., Dong, S., Liu, Y., Tai Nai, C., Suk Shin, H., Young Jeong, H., Liu, B., & Ping Loh, K. (2014) · Nature Communications · doi:10.1038/ncomms3995 · Cited by 787
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Liu, H., Liu, X., Wang, S., Liu, H.-K., & Li, L. (2020) · Energy Storage Materials · doi:10.1016/j.ensm.2020.03.003 · Cited by 710
Mitra, S., Sasmal, H. S., Kundu, T., Kandambeth, S., Illath, K., Díaz Díaz, D., & Banerjee, R. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b00925 · Cited by 587
Chen, Y., Yu, G., Chen, W., Liu, Y., Li, G.-D., Zhu, P., Tao, Q., Li, Q., Liu, J., Shen, X., et al. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b06337 · Cited by 445
2D/2D 1T‐MoS2/Ti3C2 MXene Heterostructure with Excellent Supercapacitor Performance
Wang, X., Li, H., Li, H., Lin, S., Ding, W., Zhu, X., Sheng, Z., Wang, H., Zhu, X., & Sun, Y. (2020) · Advanced Functional Materials · doi:10.1002/adfm.201910302 · Cited by 435
Self-citationSamadi, M., Sarikhani, N., Zirak, M., Zhang, H., Zhang, H.-L., & Moshfegh, A. Z. (2018) · Nanoscale Horizons · doi:10.1039/c7nh00137a · Cited by 408
Metadata
- Authors
- Fan, X., Xu, P., Li, Y. C., Zhou, D., Sun, Y., Nguyen, M. A. T., Terrones, M., & Mallouk, T. E.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-04-07
- Volume
- 138
- Issue
- 15
- Pages
- 5143-5149
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2313008767
- Cited by
- 248
- References
- 5
- FWCI
- 16.15
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fan, X., Xu, P., Li, Y. C., Zhou, D., Sun, Y., Nguyen, M. A. T., Terrones, M., & Mallouk, T. E. (2016). Controlled Exfoliation of MoS2 Crystals into Trilayer Nanosheets. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.6b01502
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