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Issue 105, 2015

Self-assembled flower-like ZnCo2O4 hierarchical superstructures for high capacity supercapacitors

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Abstract

Self-assembled ZnCo2O4 nanosheets were synthesised by a one-step hydrothermal method and their electrochemical supercapacitor properties were investigated in 2 M aqueous KOH solution. Interesting capacitive properties were observed with a superb cyclic stability obtained even at a current density of 20 A g−1. A specific capacitance value of 1691 F g−1 was obtained at a current density of 1 A g−1 with an energy density of ∼57.4 W h kg−1. The experimental findings provide useful insights into the design of supercapacitors for potential high performance energy storage applications in the future.

Graphical abstract: Self-assembled flower-like ZnCo2O4 hierarchical superstructures for high capacity supercapacitors

Supplementary files

Article information


Submitted
31 Jul 2015
Accepted
28 Sep 2015
First published
28 Sep 2015

RSC Adv., 2015,5, 86551-86557
Article type
Paper
Author version available

Self-assembled flower-like ZnCo2O4 hierarchical superstructures for high capacity supercapacitors

S. Ratha and C. S. Rout, RSC Adv., 2015, 5, 86551 DOI: 10.1039/C5RA15272K

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