Synthesis and electrochemical characterization of zinc (Zn) based metal organic framework (MOF) and its polymer composite with pyrrole and RuO2 for supercapacitor application

This article delves into the synthesis and electrochemical characterization of zinc-based metal-organic frameworks (MOFs) and their composites with pyrrole and ruthenium dioxide (RuO2) for supercapacitor applications. The study focuses on the synthesis methods, including solvothermal synthesis and in-situ interface chemical oxidative polymerization, and the detailed characterization of the materials using techniques such as FTIR, XRD, UV-Vis, HRSEM, EDS, and XPS. The electrochemical performance of the composites is evaluated through cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The results show that the ternary composite RuO2@PPy@ZnMOF exhibits superior specific capacitance and stability compared to the binary composite PPy@ZnMOF and the pristine ZnMOF. The article concludes that the synergistic effect of MOFs, conducting polymers, and metal oxides opens new avenues for high-performance energy storage applications, particularly in wearable sensors, hybrid battery-supercapacitor systems, and regenerative braking systems in electric vehicles.