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Embedding heterostructured MnS/Co1-xS nanoparticles in porous carbon/graphene for superior lithium storage

Abstract

Metal sulfides are regarded as promising anode materials for developing high-performance lithium-ion batteries (LIBs) due to their high theoretical specific capacity and intrinsic safety. However, poor electrical conductivity and drastic volume change during lithiation hamper their practical application. To address this challenge, herein, we report the synthesis of hollow cube-like composites consisting of heterostructured MnS/Co1-xS nanoparticles embedded in an electrically conductive carbon@reduced graphene oxide (MnS/Co1-xS@C@rGO) from GO-coated mixed metal-cyanide coordination polymer precursor. Benefiting from the synergistic effect of different components and the unique hierarchically hollow architecture, the MnS/Co1-xS@C@rGO composites evaluated as anode materials exhibited high reversible capacity of 1018 mAh g-1 after 500 cycles at a current density of 1 A g−1 and 723 mAh g-1 after 1000 cycles at a high current density of 5 A g−1. The combination of the convenient synthesis strategy and excellent lithium storage performance makes MnS/Co1-xS@C@rGO composites a promising anode material for next-generation LIBs.

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Supplementary files

Publication details

The article was received on 09 Oct 2018, accepted on 06 Dec 2018 and first published on 07 Dec 2018


Article type: Paper
DOI: 10.1039/C8TA09740B
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Embedding heterostructured MnS/Co1-xS nanoparticles in porous carbon/graphene for superior lithium storage

    B. Li, R. Wang, Z. Chen, D. Sun, F. Fang and R. Wu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA09740B

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