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

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

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...

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Veröffentlicht in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2017, Vol.5 (23), p.11834-11839
Hauptverfasser: Young, Christine, Salunkhe, Rahul R, Alshehri, Saad M, Ahamad, Tansir, Huang, Zhenguo, Henzie, Joel, Yamauchi, Yusuke
Format: Artikel
Sprache:eng
Schlagworte:
Carbon
Cobalt oxides
Energy density
Nanoparticles
Nanostructure
Oxides
Particulate composites
Supercapacitors
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Zusammenfassung: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.
ISSN:2050-7488
2050-7496
DOI:10.1039/c7ta01362k