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NiCo2S4@Ni3S2 hybrid nanoarray on Ni foam for high-performance supercapacitor

Abstract

The integrated hybrid nanoarrays with hierarchical porous structures have attracted much attention as energy materials for their excellent synergistic effect. Herein we provided a facile strategy for integrating NiCo2S4@Ni3S2 hybrid nanoneedle array on nickel foam derived from metal-organic framework (MOF) precursors and Ni/Co-precursor by sulfidizing. When directly used as free-standing electrode for supercapacitor, the NiCo2S4@Ni3S2 electrode exhibited high specific capacitances of 1536.8 F g-1 at 1 A g-1. Furthermore, the assembled NiCo2S4@Ni3S2//AC asymmetric supercapacitor (ASC) exhibited a high energy density of 35.26 Wh kg-1 at a power density of 724.93 W kg-1. The capacitance retention of NiCo2S4@Ni3S2 was up to 97.4% after 10000 cycles.

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Publication details

The article was received on 16 Mar 2019, accepted on 11 Apr 2019 and first published on 11 Apr 2019


Article type: Paper
DOI: 10.1039/C9NJ01384A
Citation: New J. Chem., 2019, Accepted Manuscript

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    NiCo2S4@Ni3S2 hybrid nanoarray on Ni foam for high-performance supercapacitor

    C. Chen, J. Zhou, Y. Li, Q. Li, H. Chen, K. Tao and L. Han, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ01384A

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