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Issue 21, 2014
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Preparation of carbon coated MoS2 flower-like nanostructure with self-assembled nanosheets as high-performance lithium-ion battery anodes

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Abstract

Loosely packed MoS2 nanosheets with thin carbon coating were synthesized via a facile, one-pot hydrothermal growth method. In the resulting optimally-designed nanoarchitecture, the ultrathin nanosheets, with a wall-thickness of approximately 5–10 nm, provide a large electrode–electrolyte interface so as to facilitate faster lithium-ion intercalation and diffusion. The flexible and conductive carbon overcoats stabilize the disordered structure of flower-like MoS2 nanosheets to accommodate more lithium-ions intercalation and thus maintain the structural and electrical integrity during cycling processes. In favor of the synergy and interplay of the carbon effect and intrinsic structural advantages, C@MoS2 (2 : 1) composites synthesized with a D-glucose precursor: MoO3 molar ratio of 2 : 1 exhibit high reversible specific capacity of 1419 mA h g−1 at 0.1 A g−1, retain 80% of the capacity after 50 cycles, and excellent rate capability as high as 672 mA h g−1 at 10 A g−1 with nearly 100% coulombic efficiency. The good electrochemical performance suggests that these C@MoS2 composites with unique flower-like morphology could be a promising candidate as an anode material for lithium-ion batteries.

Graphical abstract: Preparation of carbon coated MoS2 flower-like nanostructure with self-assembled nanosheets as high-performance lithium-ion battery anodes

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Publication details

The article was received on 13 Mar 2014, accepted on 04 Apr 2014 and first published on 04 Apr 2014


Article type: Paper
DOI: 10.1039/C4TA01247J
Citation: J. Mater. Chem. A, 2014,2, 7862-7872
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    Preparation of carbon coated MoS2 flower-like nanostructure with self-assembled nanosheets as high-performance lithium-ion battery anodes

    S. Hu, W. Chen, J. Zhou, F. Yin, E. Uchaker, Q. Zhang and G. Cao, J. Mater. Chem. A, 2014, 2, 7862
    DOI: 10.1039/C4TA01247J

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