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Issue 38, 2017
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Facile in situ synthesis of crystalline VOOH-coated VS2 microflowers with superior sodium storage performance

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Abstract

The meticulous design of coating structures is an efficient approach for enhancing the cycle life and rate capability of electrode materials. Herein, crystalline VOOH-coated VS2 microflowers (c-VS2@VOOH) constructed from nanosheets are successfully prepared by a facile one-step hydrothermal method. The c-VS2@VOOH composite as a sodium ion battery anode material delivers an excellent cycling stability of 330 mA h g−1 after 150 cycles at 0.2 A g−1. In particular, c-VS2@VOOH can still afford a high reversible capacity of 356 and 224 mA h g−1 even at 0.5 and 1.0 A g−1, respectively. The high capacity, good stability and enhanced rate capability are mainly attributed to the highly efficient surface sensitization and protection by crystalline VOOH, which can improve sodium ion diffusion and suppress the pulverization of VS2 nanosheets.

Graphical abstract: Facile in situ synthesis of crystalline VOOH-coated VS2 microflowers with superior sodium storage performance

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Publication details

The article was received on 15 Jun 2017, accepted on 28 Aug 2017 and first published on 30 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA05205G
Citation: J. Mater. Chem. A, 2017,5, 20217-20227
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    Facile in situ synthesis of crystalline VOOH-coated VS2 microflowers with superior sodium storage performance

    W. Li, J. Huang, L. Feng, L. Cao, Y. Feng, H. Wang, J. Li and C. Yao, J. Mater. Chem. A, 2017, 5, 20217
    DOI: 10.1039/C7TA05205G

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