Exploring the electrochemical behaviour of DC glow discharge plasma exposed activated bamboo charcoal incorporated with FePO4 nanoparticles in energy storage applications

FePO4 active material has a single-phase response with a significant number of charge carriers, to attain the optimum kinetics and three-dimensional ion migration. The Pyrolysis method was used for the preparation and activation of the Bamboo Charcoal (BCC). The surface properties like wettability, adhesion and conductivity were enhanced by the exposure of DC glow discharge plasma. FePO4 was prepared by hydrothermal method and the composite of FePO4/plasma treated BCC was made using pestle mortar. This work discusses the electrochemical behaviour of pure FePO4 and composite of FePO4/plasma-treated BCC was analysed with different electrolytes at different scan rates. If compared, the FePO4/plasma-treated BCC material was seen to have high specific capacitance/capacity and b-value was shifted from capacitive to diffusive. These findings suggested that FePO4/plasma exposed BCC could be a potential cathode material for energy storage devices.