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Hierarchical CuCo2O4@NiMoO4 core–shell hybrid arrays as a battery-like electrode for supercapacitors

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Abstract

Herein, hierarchical CuCo2O4@NiMoO4 core–shell nanowire arrays were successfully synthesized on Ni foam via hydrothermal processes as a battery-like electrode. Owing to the unique core–shell structure and the synergetic effect from CuCo2O4 and NiMoO4, the resulting CuCo2O4@NiMoO4 core–shell arrays exhibit a high specific capacitance of 2207 F g−1 at 1.25 A g−1 and good rate capability with only about 4.4% capacitance loss after cycling tests. Furthermore, we assemble the corresponding asymmetric supercapacitor using CuCo2O4@NiMoO4 (positive electrode) and activated carbon (negative electrode), which delivers a high energy density (about 40 W h kg−1) and good cycle stability. Thereby, these electrochemical performances demonstrated that as-fabricated CuCo2O4@NiMoO4 core–shell arrays are promising candidates as electrodes for high-performance supercapacitors.

Graphical abstract: Hierarchical CuCo2O4@NiMoO4 core–shell hybrid arrays as a battery-like electrode for supercapacitors

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Publication details

The article was received on 26 Jun 2017, accepted on 31 Jul 2017 and first published on 01 Aug 2017


Article type: Research Article
DOI: 10.1039/C7QI00361G
Citation: Inorg. Chem. Front., 2017, Advance Article
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    Hierarchical CuCo2O4@NiMoO4 core–shell hybrid arrays as a battery-like electrode for supercapacitors

    J. Lin, H. Liang, H. Jia, S. Chen, Y. Cai, J. Qi, J. Cao, W. Fei and J. Feng, Inorg. Chem. Front., 2017, Advance Article , DOI: 10.1039/C7QI00361G

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