Metal oxides are used as pseudo capacitors for energy storage applications. Transition metal oxide like NiO being cheaper, can replace the conventional RuO2 in super capacitors. NiO is also environmentally friendly. Bulk NiO is an anti-ferromagnet with Neel temperature of 523 K. NiO has high specific capacitance and high chemical and thermal stability. Doping with transition metals like Mn can further improve its electrochemical activity and specific capacitance. To enhance the photocatalytic efficiency of NiO, the direct electron hole recombination has to suppress which can occur with doping . Microstructural studies showed increase in surface area due to fine morphology will result into higher catalytic activity [3].