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Tulip-like MoS2 with single sheet tapered structure anchored on N-doped graphene substrates via C-O-Mo bonds for superior sodium storage

Abstract

Tulip-like MoS2 with a tapered structure was assembled by a single-sheet anchored on N-doped graphene substrates (tulip-MoS2/NG) through an in situ technique with N-methyl-2-pyrrolidinone (NMP) as “sacrifice agent” to promote C-O-Mo bond formation. As an anode for Na+ battery, tulip-MoS2/NG electrodes exhibited excellent capacity retention (above 99% after 100 cycles at 0.1 A g-1), and long cycling life stability (179 mAh g-1 at 1 A g-1 and 151 mAh g-1 at 5 A g-1 after 1,000 cycles with degradation below 110 µAh g-1 cycle-1). The excellent electrochemical performance could be attributed to the single-sheet tapered structure that functions as self-support and promotes the stability of the tulip-MoS2/NG architecture. Moreover, the C-O-Mo bonds derived from the NMP molecular bridge fixed tulip-like MoS2 on the NG.

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Publication details

The article was received on 22 Sep 2018, accepted on 04 Nov 2018 and first published on 07 Nov 2018


Article type: Paper
DOI: 10.1039/C8TA09221D
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Tulip-like MoS2 with single sheet tapered structure anchored on N-doped graphene substrates via C-O-Mo bonds for superior sodium storage

    T. Wang, X. Shen, J. Huang, Q. Xi, Y. Zhao, Q. Guo, X. Wang and Z. Xu, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA09221D

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