Smart design of free-standing ultrathin Co-Co(OH)2 composite nanoflakes on 3D nickel foam for high-performance electrochemical capacitors

Ultrathin Co-Co(OH)2 composite nanoflakes have been fabricated through electrodeposition on 3D nickel foam. As electrochemical capacitor electrodes, they exhibit a high specific capacitance of 1000 F g(-1) at the scan rate of 5 mV s(-1) and 980 F g(-1) at the current density of 1 A g(-1), respective...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2015-01, Vol.51 (9), p.1689-1692
Main Authors: Yu, Zheyin, Cheng, Zhenxiang, Majid, Siti Rohana, Tai, Zhixin, Wang, Xiaolin, Dou, Shixue
Format: Article
Language:English
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Summary:Ultrathin Co-Co(OH)2 composite nanoflakes have been fabricated through electrodeposition on 3D nickel foam. As electrochemical capacitor electrodes, they exhibit a high specific capacitance of 1000 F g(-1) at the scan rate of 5 mV s(-1) and 980 F g(-1) at the current density of 1 A g(-1), respectively, and the retention of capacitance is 91% after 5000 cycles.
ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc07499h