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Issue 4, 2016
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Hierarchical carbon@Ni3S2@MoS2 double core–shell nanorods for high-performance supercapacitors

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Abstract

Hierarchical carbon@Ni3S2@MoS2 (C@Ni3S2@MoS2) double core–shell nanorods have been synthesized by a facile hydrothermal method using highly conductive carbon/Ni (C/Ni) nanorods as both the precursor and template. As supercapacitor electrodes, the C@Ni3S2@MoS2 nanorods deliver a specific capacitance as high as 1544 F g−1 at a current density of 2 A g−1 with excellent cycling stability (retaining 92.8% of the capacitance after 2000 cycles at a current density of 20 A g−1). The C/Ni nanorods as the backbone played crucial roles in enhancing the rate performance of the device, in the meanwhile, interconnected MoS2 nanosheets on the shell provided numerous accessible surfaces and contacts with the electrolyte. Our work demonstrated an effective design of robust hierarchical double core/shell nanostructures, which could provide a general and promising approach to fabricate high-performance materials for energy storage applications.

Graphical abstract: Hierarchical carbon@Ni3S2@MoS2 double core–shell nanorods for high-performance supercapacitors

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Supplementary files

Article information


Submitted
29 Oct 2015
Accepted
01 Dec 2015
First published
01 Dec 2015

J. Mater. Chem. A, 2016,4, 1319-1325
Article type
Paper

Hierarchical carbon@Ni3S2@MoS2 double core–shell nanorods for high-performance supercapacitors

L. Li, H. Yang, J. Yang, L. Zhang, J. Miao, Y. Zhang, C. Sun, W. Huang, X. Dong and B. Liu, J. Mater. Chem. A, 2016, 4, 1319
DOI: 10.1039/C5TA08714G

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