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.