Abstract :

Herein, we develop the first flexible, low-cost and high-performance hybrid electrode based on MnO2 and various levels of Ni doped MnO2 by employing a chemical precipitation method and characterized by various techniques. The X-ray diffraction patterns indexed to the tetragonal structure of α-MnO2. Morphological studies show the synthesized particles to be combined nanospherical with nanorod structure. Their capacitive behaviour was studied by cyclic voltammetry, galvanostatic charge-discharge studies and impedance analysis. Among the various level of doping the specific capacitance of the MnO2: Ni (0.075 M) exhibited a highest specific capacitance of 765 F/g than pure MnO2 (212 F/g).