Supercapacitor Applications of Pure and Cerium doped Nickel Oxide

Abstract

The need for developing efficient and affordable energy storage technologies increased since the energy obtaining from these renewable energy sources is less compared to those from fossil fuels. Hence studies regarding efficient materials for the fabrication of supercapacitors are of great interest. Since energy storage is the leading solution for the fast growing energy crisis, in this work supercapacitor applications of NiO and Ce doped NiO are investigated. Nanoparticles are synthesized by modified auto combustion method and the structural confirmation is done using XRD analysis. Morphological and elemental analysis are done using FE-SEM and EDAX spectra. Absorption properties are studied and bandgap was evaluated using UV-Visible spectroscopy. Characteristic vibrational modes are investigated using Raman and FTIR spectra. Cyclic voltammetry measurements at different scan rates and Galvanostatic charge discharge measurements at different current densities are performed to probe the electrochemical response which revealed the potential of Ce doped NiO as an electrode material for energy storage devices.