Synthesis of mixed binary oxides by Cathodic electrodeposition for energy storage systems

Recently, there is a growing demand for cheap and efficient energy storage devices. Supercapacitor as an uninterruptable power source can be coupled with batteries to provide peak power and can replace batteries for memory back up. Some benefits of supercapacitors in comparison with other energy storge devices are long life, high power density, wide thermal range and low maintenance [1]. Electrode material is the most important component of a supercapacitor. So, there is much attempt to reach electrode material with higher power and energy density. Sythesis of various mixed binary metal oxides is an example of these attempts. Elemental doping of simple pseudo-capacitive metal oxides to form mixed metal oxides has been proven to be an effective way to increase their electronic conductivity, specific capacitance and cyclic durability [2]. In this work, nano-size of binary metal oxides Mn-Al, Mn-Ce, Ce-Al were sythesised by cathodic electrodeposition method. These binary metal oxides were characterized by SEM and XRD methods. These materials will be used as electroactive materials for supercapacitors.