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Issue 23, 2017
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High energy density supercapacitors composed of nickel cobalt oxide nanosheets on nanoporous carbon nanoarchitectures

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Abstract

Porous carbon–metal oxide hybrid materials are advanced functional composites with great potential for use in high energy density supercapacitors. Here we describe a hybrid structure composed of two-dimensional (2D) NiCo2O4 nanosheets synthesized on polyhedral-shaped nanoporous carbon (NC) particles. The NC particles were derived from the carbonization of zeolitic imidazole frameworks (ZIF-8). Supercapacitor devices assembled using NiCo2O4-NC nanoparticles had excellent capacitive properties with energy densities up to 28 W h kg−1 and power densities up to 8.5 kW kg−1.

Graphical abstract: High energy density supercapacitors composed of nickel cobalt oxide nanosheets on nanoporous carbon nanoarchitectures

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Supplementary files

Article information


Submitted
13 Feb 2017
Accepted
30 Mar 2017
First published
30 Mar 2017

J. Mater. Chem. A, 2017,5, 11834-11839
Article type
Paper

High energy density supercapacitors composed of nickel cobalt oxide nanosheets on nanoporous carbon nanoarchitectures

C. Young, R. R. Salunkhe, S. M. Alshehri, T. Ahamad, Z. Huang, J. Henzie and Y. Yamauchi, J. Mater. Chem. A, 2017, 5, 11834
DOI: 10.1039/C7TA01362K

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