Enhanced electrochemical performance of AlFeO₃ modified g-CN sheets for supercapacitor devices

The demand for effective energy storage in renewable system makes supercapacitor (SCs) more significant. They stand out as alternatives to traditional devices due to their outstanding stability, quick charge discharge, as well as economical nature. This paper is concerned with hydrothermal synthesis of AlFeO₃/g-CN nanocomposite to use as a supercapacitor. Structural as well as morphological analysis confirmed, successful formation of nanocomposite with well distributed phases according to physical properties. Electrochemical Analysis was evaluated via galvanostatic charge discharge to determine specific capacitance (Cs). AlFeO₃/g-CN exhibit superior Cs is 858 F g^− 1 at 1 A g^− 1 compared to pristine AlFeO₃ is 450 F g^− 1. It contained energy density (E_d) of 19.36 Wh kg^− 1 with power density (P_d) of 201 W kg^− 1 at 1 A g^− 1. Addition of g-CN gives porous surface which increased mobility of ions as well as carrying capacity of current in composite. The AlFeO₃/g-CN nanocomposite had an outstanding cycling stability after 4000th cycles. This increased the capacity of charge storage as well as greatly increased the electrochemical activity of AlFeO₃/g-CN nanocomposite compared to that of AlFeO₃. AlFeO₃/g-CN exhibit remarkable performance, which confirmed that generated hybrid electrode is suitable option for advanced energy storage technologies.