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

Authors

Christine Young, Waseda University, National Institute For Materials Science
Rahul R. Salunkhe, National Institute for Materials Science
Saad M. Alshehri, Alfaisal University, King Saud University
Tansir Ahamad, King Saud University
Zhenguo Huang, University of WollongongFollow
Joel Henzie, National Institute for Materials Science
Yusuke Yamauchi, University of Wollongong, National Institute for Materials Science, Waseda University, King Saud UniversityFollow

RIS ID

115359

Publication Details

Young, C., Salunkhe, R. R., Alshehri, S. M., Ahamad, T., Huang, Z., Henzie, J. & Yamauchi, Y. (2017). High energy density supercapacitors composed of nickel cobalt oxide nanosheets on nanoporous carbon nanoarchitectures. Journal of Materials Chemistry A, 5 (23), 11834-11839.

Abstract

Porous carbon-metal oxide hybrid materials are advanced functional composites with great potential for use in high energy den sity supercapacitors. Here we describe a hybrid structure composed of two-dimensional (2D) NiCo 2 O 4 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 NiCo 2 O 4 -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 .