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

Abstract

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… (More)
DOI: 10.1039/c4cc07499h

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