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Issue 5, 2014
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Controlled construction of hierarchical Co1−xS structures as high performance anode materials for lithium ion batteries

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Abstract

Novel 3D hierarchical flower-like Co1−xS architectures were successfully synthesized via a hydrothermal process using trisodium citrate (Na3Cit) as a chelating agent. The crystal structure and morphology of the as-prepared products were characterized and the results demonstrated that the Na3Cit could efficiently control the formation of flower-like Co1−xS hierarchitectures. A possible growth mechanism for this hierarchical flower-like Co1−xS nanostructure was proposed on the basis of a series of time-dependent experiments, and this work provides an efficient route for designing desirable micro-/nanostructures. The flower-like Co1−xS nanostructures were fabricated as anode materials of lithium ion batteries and tested in the range of 0.01 V–3.00 V. The initial discharge capacity was up to 1244 mAh g−1 at the current density of 50 mA g−1. The electrochemical measurement suggested that the flower-like Co1−xS nanostructures have high capacity and excellent cycle stability as a Li-ion battery anode.

Graphical abstract: Controlled construction of hierarchical Co1−xS structures as high performance anode materials for lithium ion batteries

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Publication details

The article was received on 22 Sep 2013, accepted on 04 Nov 2013 and first published on 04 Nov 2013


Article type: Paper
DOI: 10.1039/C3CE41915K
Citation: CrystEngComm, 2014,16, 814-819
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    Controlled construction of hierarchical Co1−xS structures as high performance anode materials for lithium ion batteries

    S. Liu, J. Wang, J. Wang, F. Zhang, F. Liang and L. Wang, CrystEngComm, 2014, 16, 814
    DOI: 10.1039/C3CE41915K

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