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Issue 83, 2015
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Facile fabrication of three-dimensional hierarchical CuO nanostructures with enhanced lithium storage capability

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Abstract

Three-dimensional hierarchical CuO nanostructures with uniform flower-like and urchin-like morphologies have been successfully prepared by a facile, cheap and environmentally friendly solvothermal method. The as-prepared flower-like CuO is constructed by nanopetals, which are composed of nanoparticles, and the urchin-like CuO with a hollow structure is composed of tightly arranged nanorods. As anode materials for lithium-ion batteries, the flower-like CuO material exhibits a high initial discharge capacitance (1457.2 mA h g−1 at 100 mA g−1), good rate capability and excellent cycling stability. The superior electrochemical performance is mainly attributed to the hierarchical structure and the nanosize of the nanoparticles composing the nanopetals, which benefit electron and Li ion transportation, and provide large electrode–electrolyte contact area. The extra capacity of the samples may be due to the partial reversible formation and decomposition of the gel-like SEI film on the surface of the electrode and pseudocapacitance.

Graphical abstract: Facile fabrication of three-dimensional hierarchical CuO nanostructures with enhanced lithium storage capability

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Publication details

The article was received on 22 May 2015, accepted on 29 Jul 2015 and first published on 29 Jul 2015


Article type: Communication
DOI: 10.1039/C5RA09657J
Citation: RSC Adv., 2015,5, 68061-68066

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    Facile fabrication of three-dimensional hierarchical CuO nanostructures with enhanced lithium storage capability

    Y. Zhu, N. Sun, W. Lin, Y. Ma, C. Lai and Q. Wang, RSC Adv., 2015, 5, 68061
    DOI: 10.1039/C5RA09657J

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