Abstract Herein, we report the use of Cu2O nanosheets decorated CuMnO2 electrodeposited over copper foil as a supercapacitor electrode material and compared with their individual counterpart. The morphology of the prepared electrodes is characterized using scanning electron microscopy and the structural features are evaluated from the XRD pattern. The charge storing performances of the electrodes are assessed by carrying out cyclic voltammetry and electrochemical impedance spectroscopic studies. In contrast to the individual metal oxide systems, the layered system exhibits a very high capacitance of 257 F g-1 at a scan rate of 5 mVs−1. Further, the cyclic retention ability of the system is 90% measured by running 10,000 cycles. Further, a prototype super-capacitor is fabricated and evaluated its charge-discharge characteristics which reveals that the obtained system may serve as an efficient electrode material for fabricating supercapacitor.

中文翻译：

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Cu2O纳米片装饰CuMnO2纳米球电沉积在Cu箔上作为高性能超级电容器电极

摘要 在此，我们报告了使用电沉积在铜箔上的 Cu2O 纳米片装饰的 CuMnO2 作为超级电容器电极材料，并与它们各自的对应物进行了比较。使用扫描电子显微镜表征制备的电极的形态，并从 XRD 图案评估结构特征。通过进行循环伏安法和电化学阻抗谱研究来评估电极的电荷存储性能。与单个金属氧化物系统相比，分层系统在 5 mVs-1 的扫描速率下表现出非常高的电容 257 F g-1。此外，通过运行 10,000 次循环，系统的循环保持能力为 90%。更多，