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Sol–Gel synthesis of Co3O4 nanoparticles as an electrode material for supercapacitor applications
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Sol–Gel synthesis of Co3O4 nanoparticles as an electrode material for supercapacitor applications
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Journal Article
Sol–Gel synthesis of Co3O4 nanoparticles as an electrode material for supercapacitor applications
2020
Overview
Cobalt Oxide (Co
3
O
4
) nanoparticles were synthesized with an aid of urea by sol–gel method. The results of X-ray diffraction revealed that the formation of face-centered cubic (Fd3m) structure and the average crystallite size of the product were found to be 13.76 nm. The formation of cobalt oxide is confirmed by FT-IR analysis. The results of HR-TEM images reveal that Co
3
O
4
nanoparticles were found to have within the range of 13–15 nm. At 3 M KOH, electrochemical analyses were investigated with impedance spectroscopy and an intrinsic pseudo capacitance and the results were reported. The results of Galvanostatic charge-discharge (GCD) tests revealed the capacitive properties of Co
3
O
4
with the highest specific capacitance of 761.25 F g
−1
.
Highlights
The specific capacitance of Co
3
O
4
nanoparticles was found to be 761.25 F g
−1
at 11 mA/cm
2
current density.
The Co
3
O
4
nanoparticles were synthesized by a simple sol–gel method.
The crystallite size of Co
3
O
4
nanoparticles was found to be 13.76 nm.
Publisher
Springer US,Springer Nature B.V,Springer Verlag
