Nanoporous Activated Carbon and Multi-walled Carbon Nanotubes from Renewable Botanical Hydrocarbons and their Impact on Efficiency of Supercapacitor Performance

Highly activated carbon and Multi-walled Carbon Nanotubes (MWCNTs) are preferable materials in our supercapacitorelectrode. Activated Carbon prepared from Pongamia pinnata shell by Chemical Activation process and MWNTs from Pongamia pinnata oil by Spray pyrolysis method respectively.The electrochemical Capacitor have been assembled with Multi-walled Carbon Nanotubes /Graphene composites act as negative electrode and activatedcarbon actas positive electrode with 6M KOH as an aqueous electrolyte. The significant results showed that charge discharge performance of fabricated electrodes has promised as decent electrode in energy storage applications. It has to be improved by the addition ofMWCNTs in anodes. It can be executed a specific capacitance of 148Fg-1 at the current density of 0.5 Ag-1 .The maximum Energy density and Power density were up to 5.1Whkg-1 at 0.5 Ag-1and 5.0 kWkg-1 , at 10Ag-1 . The Galvan static charge – discharge cycling studies revealed that the excellent capacity retention of 81%even after 4000 cycles. The unique fabrication strategy for the two electrode SC assembly with highly conducting and stable natured Carbon nano materials expand the arms of energy storage devices.