Studies of hybrid nanocomposite containing rgo/ni(oh)2/ppy for supercapacitor application

Now-a-days with ever increasing demand of energy, developing of alternative power sources is an important issue all over the world. In this respect we have developed a hybrid material for electrochemical supercapacitor electrode, based on a conducting polymer like polypyrrole (PPy), graphene oxide (rGO) and Ni(OH)2 for supercapacitor applications. The morphological characterisations were carried out by the Field Emission Scanning Electron Microscopy (FESEM) and Transmission Electron Microscopy (TEM). The electrochemical performance of the nanocomposite was characterized by three electrode method like cyclic voltametry (CV), impedance spectroscopy (EIS), galvanostatic charge-discharge (GCD). The nanocomposite rGO/Ni(OH)2/PPy showed the highest specific capacitance of 512 F/g at 2mV/s scan rate and high cycle life of 98% capacitance retention over 1000 cycles.