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Issue 42, 2013
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Self-assembled hairy ball-like Co3O4 nanostructures for lithium ion batteries

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Abstract

Nanostructured Co3O4 in a novel hairy ball-like morphology is successfully synthesized from self-assembled hierarchical Co(CO3)0.35Cl0.2(OH)1.10·1.74H2O precursors via a facile hydrothermal method and subsequent annealing in air. The morphological evolution of the Co(CO3)0.35Cl0.2(OH)1.10·1.74H2O precursors is investigated by examining the different reaction times during the synthesis. First, fan-shaped microplates are formed, followed by nanowires grown on the surface of the plates. Subsequently, with an extended growth reaction time, the nanowires grow longer to form the hairy ball-like structures. The Co3O4, obtained from thermal decomposition of the Co(CO3)0.35Cl0.2(OH)1.10·1.74H2O precursor in air at 400 °C, exhibits highly reversible capacities as an anode material in lithium ion batteries, which retains 860 mA h g−1 at 100 mA g−1 after 50 cycles, with good cycling stabilities and rate capabilities.

Graphical abstract: Self-assembled hairy ball-like Co3O4 nanostructures for lithium ion batteries

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Publication details

The article was received on 14 Jun 2013, accepted on 09 Sep 2013 and first published on 09 Sep 2013


Article type: Paper
DOI: 10.1039/C3TA12310C
Citation: J. Mater. Chem. A, 2013,1, 13203-13208
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    Self-assembled hairy ball-like Co3O4 nanostructures for lithium ion batteries

    D. Fang, L. Li, W. Xu, G. Li, G. Li, N. Wang, Z. Luo, J. Xu, L. Liu, C. Huang, C. Liang and Y. Ji, J. Mater. Chem. A, 2013, 1, 13203
    DOI: 10.1039/C3TA12310C

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