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Issue 4, 2015
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In situ growth of burl-like nickel cobalt sulfide on carbon fibers as high-performance supercapacitors

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Abstract

Nickel cobalt sulfide (NiCo2S4), a recently reported novel electrode material, has a higher electric conductivity than that of NiCo2O4. We describe a facile one-step route to the development of burl-like NiCo2S4 on carbon fiber paper/cloth (CFP/CFC) used as electrodes for supercapacitors. The influence of the carbon substrate on the crystal structure and electrochemical performance of the NiCo2S4 electrodes is evaluated. We obtained a pure phase of NiCo2S4 over a CFP substrate, whereas, a mixed phase over a CFC substrate. Superior pseudocapacitive performance is achieved over NiCo2S4/CFP with a large specific capacitance of 0.83 F cm−2 at a high current density of 25 mA cm−2. The capacitance loss is 24.1% after 5000 cycles at a current density of 20 mA cm−2, displaying good cyclability and high rate capability.

Graphical abstract: In situ growth of burl-like nickel cobalt sulfide on carbon fibers as high-performance supercapacitors

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Supplementary files

Article information


Submitted
15 Sep 2014
Accepted
14 Nov 2014
First published
14 Nov 2014

J. Mater. Chem. A, 2015,3, 1730-1736
Article type
Paper
Author version available

In situ growth of burl-like nickel cobalt sulfide on carbon fibers as high-performance supercapacitors

M. Sun, J. Tie, G. Cheng, T. Lin, S. Peng, F. Deng, F. Ye and L. Yu, J. Mater. Chem. A, 2015, 3, 1730
DOI: 10.1039/C4TA04833D

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