Journal
NANOSCALE RESEARCH LETTERS
Volume 10, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1186/s11671-015-0915-2
Keywords
Supercapacitor; Cobalt oxide; Multiwalled carbon nanotube; Charge-discharge
Funding
- Natural Science Foundation of China [51304062, 21403056, U1404202]
- Program for Innovative Research Team in Science and Technology in University of Henan Province (IRTSTHN) [2012IRTSTHN004]
- Basic and Frontier Technology Research Programs of the Department of Science AMP
- Technology of Henan Province [122300410107]
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Cobalt oxide (Co3O4) was homogeneously coated on multiwalled carbon nanotube through a simple chemical deposition method and employed in supercapacitor electrodes. SEM image indicated the uniform distribution of Co3O4 nanoparticles on the surface of the multiwalled carbon nanotube. A maximum specific capacitance of 273 Fg(-1) was obtained at the charge-discharge current density of 0.5 Ag-1. After 500 cycles of continuous charge-discharge process, about 88% of the initial capacity could be retained.
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