Journal of Industrial and Engineering Chemistry, Vol.62, 321-328, June, 2018
Sulfur-doped nickel oxide spherical nanosheets for redox supercapacitors
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We have synthesized sulfur-doped nickel oxide (S-NiO) spherical nanosheets by emulsion method. The structure of the S-NiO nanosheets is characterized by using TGA, XRD, XPS, BET, FE-SEM and FE-TEM. From the TGA, XPS and EDAX results conclude the nickel oxide is doped with sulfur. The specific capacitance of the S-NiO nanosheets was showing 313 F g-1 at the sweep rate of 5 mV s-1 by cyclic voltammetry. The S-NiO nanosheets showing the high rate performance of 80% at the current density ranging from 1 to 8 A g-1 and high retention of the capacitance 99% after completion of 1000 charge. discharge cycles.
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