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Synthesising of ZnO nanopetals for supercapacitor applications

Synthesising of ZnO nanopetals for supercapacitor applications

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ZnO nanopowders have been synthesised using the spray pyrolysis method. XRD analysis reveals the powder samples to be of crystallite size 19 nm. SEM images indicate petal-like formation for the zinc oxide powder. The electrochemical properties have been studied using cyclic-voltammetric and chrono-potentiometric techniques. The specific capacitance of the ZnO electrode in the presence of 2M KOH electrolyte was 365 F/g at a scan rate of 5 mV/s. The decrease in the specific capacitance of 22% has been observed after 1200 cycles.

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      • M. Jayalakshmi , M. Palaniappa , K. Balasubramanian . Single step solution combustion synthesis of ZnO/carbon composite and its electrochemical characterization for supercapacitor application. Int. J. Electrochem. Sci. , 96 - 103
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