Abstract
Herein, a simple and green two-step electrochemical method was used to prepare nanoflake-like CuO\Cu microparticles on Nickel Foam (NiF) for supercapacitor applications. First, Cu microparticles were plated on NiF through a simple immersion method. Next, the Cu/NiF electrode was electrochemically oxidized in KOH solution to CuO/Cu/NiF. The effect of KOH electrolyte concentration on the electro-oxidation of Cu/NiF was also investigated. FESEM studies show that the surface morphology of CuO/Cu is highly porous, consisting of Cu interconnected microparticles on which islands of CuO have grown. The CuO/Cu/NiF electrode exhibited a high areal capacitance of 0.31 F cm−2 at a scan rate of 10 mV s−1 with excellent stability over 1000 voltammetric cycles. The results in this study show the potential application of CuO/Cu/NiF as a low-cost high-performance positive electrode in Supercapacitors.
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The authors would like to thank the University of Tehran for financial support of this work.
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Malaie, K., Ganjali, M.R., Alizadeh, T. et al. Simple electrochemical preparation of nanoflake-like copper oxide on Cu-plated nickel foam for supercapacitor electrodes with high areal capacitance. J Mater Sci: Mater Electron 28, 14631–14637 (2017). https://doi.org/10.1007/s10854-017-7327-2
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DOI: https://doi.org/10.1007/s10854-017-7327-2