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Issue 3, 2018
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Facile preparation of monodisperse NiCo2O4 porous microcubes as a high capacity anode material for lithium ion batteries

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Abstract

Binary transition metal oxides have attracted great attention as high-performance electrode materials for lithium-ion batteries in recent years. Herein, monodisperse NiCo2O4 porous microcubes were prepared for the first time via a simple urea-assisted solvothermal method followed by a thermal decomposition process. The porous microcubes assembled by nanoparticles with a size of ca. 35 nm have an average edge length of 1.5 μm. Nitrogen sorption isotherms show that this structure possesses a high surface area of 26.26 m2 g−1 with an average pore diameter of 22.57 nm. The rich mesopores among NiCo2O4 microcubes not only provide a large electrode/electrolyte reaction interface, but also provide enough void space to accommodate the volume change and prevent electronic disconnection in the electrode material during cycling. Furthermore, primary nanoparticles with a smaller size within microcubes can facilitate rapid Li-ion transport. So, when the as-prepared porous NiCo2O4 microcubes are used as anode materials for Li-ion batteries, they exhibit high-rate capability and outstanding cyclability.

Graphical abstract: Facile preparation of monodisperse NiCo2O4 porous microcubes as a high capacity anode material for lithium ion batteries

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Publication details

The article was received on 17 Oct 2017, accepted on 25 Dec 2017 and first published on 28 Dec 2017


Article type: Research Article
DOI: 10.1039/C7QI00648A
Citation: Inorg. Chem. Front., 2018,5, 559-567
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    Facile preparation of monodisperse NiCo2O4 porous microcubes as a high capacity anode material for lithium ion batteries

    Y. Wang, J. Li, S. Chen, B. Li, G. Zhu, F. Wang and Y. Zhang, Inorg. Chem. Front., 2018, 5, 559
    DOI: 10.1039/C7QI00648A

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