Truncated NiCo^sub 2^S^sub 4^ cubohexa-octahedral nanostructures for high-performance supercapacitor

Simple hydrothermal method was adopted to synthesize zero dimensional 14-facets (6 squares and 8 cuboids) NiCo2S4 cubohexa-octahedral (NCS-COH) shaped nanostructures for high performance supercapacitor properties. The as-prepared nanostructures were characterized using X-ray powder diffraction, scan...

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Bibliographic Details
Published in:Materials letters 2017-02, Vol.189, p.21
Main Authors: Hussain, Shahid, Liu, Tianmo, Aslam, Nimra, Zhang, Yangyang, Zhao, Shuoqing
Format: Article
Language:English
Subjects:
Capacitance
Crystal structure
Electron microscopes
Electron transfer
Materials science
Nanostructured materials
Scanning electron microscopy
Supercapacitors
Transmission electron microscopy
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Summary:Simple hydrothermal method was adopted to synthesize zero dimensional 14-facets (6 squares and 8 cuboids) NiCo2S4 cubohexa-octahedral (NCS-COH) shaped nanostructures for high performance supercapacitor properties. The as-prepared nanostructures were characterized using X-ray powder diffraction, scanning and transmission electron microscopy. A plausible formation mechanism was also proposed along with crystal structure of NCS-COH. The exceptional architectures fashioned an ultrafast electron transfer during electrochemical reaction. The NCS-COH electrode exhibited a high specific capacitance of 835 at 1 A/g and capacitance retention of 92.7% at 10 A/g after 5000 cycles.
ISSN:0167-577X
1873-4979