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Issue 14, 2014
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Synthesis and characterization of M3V2O8 (M = Ni or Co) based nanostructures: a new family of high performance pseudocapacitive materials

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Abstract

Binary metal oxides have recently attracted extensive attention from researchers in the energy storage field due to their multiple oxidation states and high energy density. In the present work, Ni3V2O8, Co3V2O8, and the Ni3V2O8/Co3V2O8 nanocomposite are designed and synthesized as a new class of high performance electrode material for supercapacitors. Ni3V2O8 and Co3V2O8 show a structure comprising nanoflakes and nanoparticles, respectively. The Ni3V2O8/Co3V2O8 nanocomposite is prepared by growing Co3V2O8 nanoparticles on the surface of Ni3V2O8 nanoflakes. The composite inherits the structural characteristics and combines the pseudocapacitive benefits of both Ni3V2O8 and Co3V2O8, showing higher specific capacitance than Co3V2O8 and superior rate capability as well as better cycle stability to Ni3V2O8. The dependence of pseudocapacitive properties of the Ni3V2O8/Co3V2O8 nanocomposite on the Ni/Co mass ratio is also investigated, indicating that the high specific capacitance of the composite is contributed by Ni3V2O8, while its excellent rate capability and cycle stability can be attributed to the Co3V2O8 component.

Graphical abstract: Synthesis and characterization of M3V2O8 (M = Ni or Co) based nanostructures: a new family of high performance pseudocapacitive materials

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Publication details

The article was received on 02 Feb 2014, accepted on 12 Feb 2014 and first published on 12 Feb 2014


Article type: Paper
DOI: 10.1039/C4TA00582A
Citation: J. Mater. Chem. A, 2014,2, 4919-4926
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    Synthesis and characterization of M3V2O8 (M = Ni or Co) based nanostructures: a new family of high performance pseudocapacitive materials

    M. Liu, L. Kong, L. Kang, X. Li, F. C. Walsh, M. Xing, C. Lu, X. Ma and Y. Luo, J. Mater. Chem. A, 2014, 2, 4919
    DOI: 10.1039/C4TA00582A

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