Hydrothermal-assisted synthesis of an iron nitride–carbon composite as a novel electrode material for supercapacitors

Abstract

A novel iron nitride–activated carbon composite was synthesized via hydrothermal and ammonia treatments. The impregnation of mesoporous carbon with an iron precursor under hydrothermal conditions resulted in an outstanding specific capacitance of 507 F g⁻¹ at 0.5 A g⁻¹ and a remarkable rate capability of 72% for the hybrid-based supercapacitor electrode.