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Molten-salt chemical exfoliation process for preparing two-dimensional mesoporous Si nanosheets as high-rate Li-storage anode
Ning Lin(
), Yitai Qian()
), Yitai Qian()Abstract
Two-dimensional (2D) materials have attracted enormous attention due to their functional applications in energy storage. In this work, a low-temperature molten-salt chemical exfoliation methodology is developed for producing free-standing 2D mesoporous Si through deintercalation of CaSi2 in excess molten AlCl3 at 195 ℃. The average dimension of these sheets is 1.5 μm, and the thickness of a single sheet is approximately 10 nm. The as-prepared 2D Si has a Brunauer–Emmett–Teller surface area of 154 m2·g-1 and an average pore size of 5.87 nm. With this unique structure, the 2D Si exhibits superior Li-storage performance, including a reversible capacity of 2, 974 mA·h·g-1 at 0.2 C, reversible capacities of 2, 162, 1, 947, and 1, 527 mA·h·g-1 at 0.8, 2, and 5 C after 200 cycles, and a capacity retention of 357 mA·h·g-1 even at 30 C (90 A·g-1).
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1
Novoselov, K. S.; Geim, A. K.; Morozov, S. V.; Jiang, D.; Katsnelson, M. I.; Grigorieva, I. V.; Dubonos, S. V.; Firsov, A. A. Two-dimensional gas of massless Dirac fermions in graphene. Nature 2005, 438, 197–200.
2
Song, J. Z.; Xu, L. M.; Li, J. H.; Xue, J.; Dong, Y. H.; Li, X. M.; Zeng, H. B. Monolayer and few-layer all-inorganic perovskites as a new family of two-dimensional semiconductors for printable optoelectronic devices. Adv. Mater. 2016, 28, 4861–4869.
3
Zhao, J. J.; Liu, H. S.; Yu, Z. M.; Quhe, R.; Zhou, S.; Wang, Y. Y.; Liu, C. C.; Zhong, H. X.; Han, N. N.; Lu, J. et al. Rise of silicene: A competitive 2D material. Prog. Mater. Sci. 2016, 83, 24–151.
4
Bianco, E.; Butler, S.; Jiang, S. S.; Restrepo, O. D.; Windl, W.; Goldberger, J. E. Stability and exfoliation of germanane: A germanium graphane analogue. ACS Nano 2013, 7, 4414–4421.
5
Tan, C. L.; Zhang, H. Two-dimensional transition metal dichalcogenide nanosheet-based composites. Chem. Soc. Rev. 2015, 44, 2713–2731.
6
Fiori, G.; Bonaccorso, F.; Iannaccone, G.; Palacios, T.; Neumaier, D.; Seabaugh, A.; Banerjee, S. K.; Colombo, L. Electronics based on two-dimensional materials. Nat. Nanotechnol. 2014, 9, 768–779.
7
Xu, M. S.; Liang, T.; Shi, M. M.; Chen, H. Z. Graphenelike two-dimensional materials. Chem. Rev. 2013, 113, 3766–3798.
8
Kennedy, T.; Brandon, M.; Ryan, K. M. Advances in the application of silicon and germanium nanowires for highperformance lithium-ion batteries. Adv. Mater. 2016, 28, 5696–5704.
9
Lu, Z. Y.; Zhu, J. X.; Sim, D. H.; Zhou, W. W.; Shi, W. H.; Hng, H. H.; Yan, Q. Y. Synthesis of ultrathin silicon nanosheets by using graphene oxide as template. Chem. Mater. 2011, 23, 5293–5295.
10
Huang, X. K.; Yang, J.; Mao, S.; Chang, J. B.; Hallac, P. B.; Fell, C. R.; Metz, B.; Jiang, J. W.; Hurley, P. T.; Chen, J. H. Controllable synthesis of hollow Si anode for long-cyclelife lithium-ion batteries. Adv. Mater. 2014, 26, 4326–4332.
11
Wang, X. H.; Sun, L. M.; Hu, X. N.; Susantyoko, R. A.; Zhang, Q. Ni-Si nanosheet network as high performance anode for Li ion batteries. J. Power Sources 2015, 280, 393–396.
12
Kim, S. W.; Lee, J.; Sung, J. H.; Seo, D.; Kim, I.; Jo, M. H.; Kwon, B. W.; Choi, W. K.; Choi, H. Two-dimensionally grown single-crystal silicon nanosheets with tunable visible-light emissions. ACS Nano 2014, 8, 6556–6562.
13
Huang, X. H.; Zhang, P.; Wu, J. B.; Lin, Y.; Guo, R. Q. Nickel/silicon core/shell nanosheet arrays as electrode materials for lithium ion batteries. Mater. Res. Bull. 2016, 80, 30–35.
14
Kim, U.; Kim, I.; Park, Y.; Lee, K. Y.; Yim, S. Y.; Park, J. G.; Ahn, H. G.; Park, S. H.; Choi, H. J. Synthesis of Si nanosheets by a chemical vapor deposition process and their blue emissions. ACS Nano 2011, 5, 2176–2181.
15
Kim, W. S.; Hwa, Y.; Shin, J. H.; Yang, M.; Sohn, H. J.; Hong, S. H. Scalable synthesis of silicon nanosheets from sand as an anode for Li-ion batteries. Nanoscale 2014, 6, 4297–4302.
16
Ryu, J.; Hong, D. K.; Choi, S.; Park, S. Synthesis of ultrathin Si nanosheets from natural clays for lithium-ion battery anodes. ACS Nano 2016, 10, 2843–2851.
17
Zhuang, J. C.; Xu, X.; Peleckis, G.; Hao, W. C.; Dou, S. X.; Du, Y. Silicene: A promising anode for lithium-ion batteries. Adv. Mater. 2017, 29, 1606716.
18
Zhao, L. Y.; Dvorak, D. J.; Obrovac, M. N. Layered amorphous silicon as negative electrodes in lithium-ion batteries. J. Power Sources 2016, 332, 290–298.
19
Fu, R. S.; Zhang, K. L.; Zaccaria, R. P.; Huang, H. R.; Xia, Y. G.; Liu, Z. P. Two-dimensional silicon suboxides nanostructures with Si nanodomains confined in amorphous SiO2 derived from siloxene as high performance anode for Li-ion batteries. Nano Energy 2017, 39, 546–553.
20
Zhang, Z. L.; Wang, Y. H.; Ren, W. F.; Tan, Q. Q.; Chen, Y. F.; Li, H.; Zhong, Z. Y.; Su, F. B. Scalable synthesis of interconnected porous silicon/carbon composites by the Rochow reaction as high-performance anodes of lithium ion batteries. Angew. Chem., Int. Ed. 2014, 53, 5165–5169.
21
Terranova, M. L.; Orlanducci, S.; Tamburri, E.; Guglielmotti, V.; Rossi, M. Si/C hybrid nanostructures for Li-ion anodes: An overview. J. Power Sources 2014, 246, 167–177.
22
Zhang, M.; Zhang, T. F.; Ma, Y. F.; Chen, Y. S. Latest development of nanostructured Si/C materials for lithium anode studies and applications. Energy Storage Mater. 2016, 4, 1–14.
23
Du, F. H.; Wang, K. X.; Chen, J. S. Strategies to succeed in improving the lithium-ion storage properties of silicon nanomaterials. J. Mater. Chem. A 2016, 4, 32–50.
24
Lin, N.; Zhou, J. B.; Wang, L. B.; Zhu, Y. C.; Qian, Y. T. Polyaniline-assisted synthesis of Si@C/RGO as anode material for rechargeable lithium-ion batteries. ACS Appl. Mater. Interfaces 2015, 7, 409–414.
25
Kim, H.; Seo, M.; Park, M. H.; Cho, J. A critical size of silicon nano-anodes for lithium rechargeable batteries. Angew. Chem., Int. Ed. 2010, 49, 2146–2149.
26
Lin, N.; Han, Y.; Wang, L. B.; Zhou, J. B.; Zhou, J.; Zhu, Y. C.; Qian, Y. T. Preparation of nanocrystalline silicon from SiCl4 at 200 ℃ in molten salt for high-performance anodes for lithium ion batteries. Angew. Chem., Int. Ed. 2015, 54, 3822–3825.
27
Zhang, K.; Hu, Z.; Liu, X.; Tao, Z. L.; Chen, J. FeSe2 microspheres as a high-performance anode material for Na-ion batteries. Adv. Mater. 2015, 27, 3305–3309.
28
Augustyn, V.; Come, J.; Lowe, M. A.; Kim, J. W.; Taberna, P. L.; Tolbert, S. H.; Abruña, H. D.; Simon, P.; Dunn, B. High-rate electrochemical energy storage through Li+ intercalation pseudocapacitance. Nat. Mater. 2013, 12, 518–522.
29
Son, I. H.; Park, J. H.; Kwon, S.; Park, S.; Rümmeli, M. H.; Bachmatiuk, A.; Song, H. J.; Ku, J.; Choi, J. W.; Choi, J. M. et al. Silicon carbide-free graphene growth on silicon for lithium-ion battery with high volumetric energy density. Nat. Commun. 2015, 6, 7393.
30
Li, B.; Li, S. M.; Xu, J. J.; Yang, S. B. A new configured lithiated silicon-sulfur battery built on 3D graphene with superior electrochemical performances. Energy Environ. Sci. 2016, 9, 2025–2030.
Pages 6294-6303
Cite this article:
Han Y, Zhou J, Li T, et al. Molten-salt chemical exfoliation process for preparing two-dimensional mesoporous Si nanosheets as high-rate Li-storage anode. Nano Research, 2018, 11(12): 6294-6303. https://doi.org/10.1007/s12274-018-2153-2
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