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Hollow cubic double layer structured Cu7S4/NiS nanocomposites for high-performance supercapacitors

Abstract

A double layer hollow structured Cu7S4/NiS material is synthesized using a self-generated sacrificial template method, as an electrode material for supercapacitor. Cu7S4/NiS composites with three different particle sizes are synthesized and tested, which exhibited high specific capacitances of 1204 F g−1, 1028 F g−1 and 857 F g−1, respectively, at a current density of 1 A g−1. The specific capacitance for the nanocomposites maintained at 945.5 F g−1 (85.8%), 719.2 F g−1 (84.32%) and 558.5 F g−1 (80.13%) levels after 1000 cycles, respectively, at a current density of 4 A g−1, showing good cycle stability. Compariing with the pure NiS and Cu7S4, the development of the hollow Cu7S4/NiS composites is demonstrated to be effective in enhancing in the supercapacitive performance.

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Publication details

The article was received on 04 Jul 2017, accepted on 08 Sep 2017 and first published on 08 Sep 2017


Article type: Paper
DOI: 10.1039/C7TA05784A
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Hollow cubic double layer structured Cu7S4/NiS nanocomposites for high-performance supercapacitors

    H. Cao, X. Wang, X. Chen, H. Liu, J. Zheng and W. Zhou, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA05784A

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