a Department of Mechanical Engineering, KSR Institute for Engineering and

Technology, Tiruchengode – 637215, India

b Department of Chemistry, Vivekanandha College of Arts and Sciences for

Women(Autonomous), Tiruchengode-637205, India

In the last few years, there have been a great deal of discoveries and research made that has contributed to the development of Metal-based polymer nanocomposites.

Electromagnetic shielding, energy storage devices, fuel cells, membranes, sensors, and actuators are just some of the many intriguing uses for Metal-based materials and their composites. Experiments using cyclic voltammetry investigated the super capacitive qualities of MnO2 nanoparticles, MnO2 nanoparticles that had been doped with nickel, and MnO2 nanoparticles that had been combined with Poly-vinyl-alcohol (PVA) and Poly- vinyl-Pyrolidone (PVP). A method known as hydrothermal synthesis was used in the production of both the polymer nanocomposites and the nanoparticles. Analyses using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) revealed the structural changes that occurred as a result of the interaction between MnO2/Ni and the PVA/PVP mix matrix. Examining the surface morphology of synthesized nanocomposite films was carried out with the assistance of scanning electron microscopy (SEM). Through the use of cyclic voltammetry, it was discovered that the values of capacitance for MnO2, nickel doped MnO2, and nickel doped Polymer capped MnO2 nanoparticles, respectively, were 164F/g, 293F/g, 304F/g, and 471.9F/g. In contrast to nickel doped MnO2 nanoparticles that were assisted by PVP, nickel doped MnO2 nanoparticles that were assisted by PVA were shown to be a more effective super capacitor.