Abstract：
Metal organic frameworks (MOF\'s) have gained considerable attention in the field of energy storage and supercapacitors applications. Herein, we synthesized copper oxide (CuO) through the precipitation method and concurrently derived from the solvothermal prepared copper-benzene dicarboxylate (Cu-BDC) by calcination. The integration of MOF-derived nanostructures with traditional CuO to form a hybrid electrode material, has not been extensively explored. The synthesized materials were characterized using x-ray Diffractometry, FTIR, XPS, Brunauer, Emmett, and Teller and morphological analysis was conducted using scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) affirming the composite\'s nature. Electrochemical impedance spectroscopy, galvanostatic charge-discharge, and cyclic voltammetry were used to evaluate the electrochemical properties of electrode material. With a specific capacitance of 691 Fg-1for CuO obtained from Cu-BDC (benzene dicarboxylic acid) and 236 Fg-1for CuO via the precipitation method, measured at a scan rate of 5 m Vs-1in 6 M KOH was found to be the optimal performance solution for the electrode material. The mesoporous structures are crucial for their absorption ability and improved ion transport, resulting in optimized electrochemical performance. Finally, we demonstrate significant improvements in specific capacitance and cycling stability compared to pure CuO-based electrodes, highlighting the potential of this composite structure for advanced supercapacitor applications.
摘要：
金属有机骨架(MOF)在储能和超级电容器应用领域获得了相当大的关注。在这里，我们通过沉淀法合成了氧化铜（CuO），并通过煅烧从溶剂热制备的苯二羧酸铜（Cu-BDC）同时获得。MOF衍生的纳米结构与传统的CuO集成形成混合电极材料，尚未被广泛探索。使用XRD对合成的材料进行了表征，FTIR,XPS,使用SEM进行BET和形态分析，确认复合材料的性质。电化学阻抗谱,恒流充放电，采用循环伏安法对电极材料的电化学性能进行了评价。通过沉淀法从Cu-BDC（苯二羧酸）获得的CuO的比电容为691Fg-1，CuO的比电容为236Fg-1，在6MKOH中以5mV/s的扫描速率测量发现是电极材料的最佳性能解决方案。介孔结构对于其吸收能力和改善离子传输至关重要，导致优化的电化学性能。最后,与纯CuO基电极相比，我们证明了比电容和循环稳定性的显着改善，突出了这种复合结构在高级超级电容器应用中的潜力。
