Ni2P2O7 Thin Film Electrode for High Performance Supercapacitor Applications

Abstract: The electrochemical performances of the supercapacitor essentially rely on electrode materials. The transition metal phosphates have been attracted as electrode material for energy storage in supercapacitor. A valley-like Ni2P2O7 thin film electrode is synthesized by economic and reproducible chemical bath deposition technique. The high specific capacitance of Ni2P2O7 is obtained as 548 F/g at current density 1 A/g. The electrode delivered enhanced energy density of 14.47 Wh k/g at a power density 0.16 kW k/g. The results indicate that Ni2P2O7 is an exemplary supercapacitor candidate and it would lead to productive research in future energy storage applications.