Enhanced electrochemical performances of activated carbon (AC)-nickel-metal organic framework (SIFSIX-3-Ni) composite and ion-gel electrolyte based supercapacitor

Abstract In this study, we investigated that the activated carbon (AC)-based supercapacitor and introduced SIFSIX-3-Ni as a porous conducting additive to increase its electrochemical performances of AC/SIFSIX-3-Ni composite-based supercapacitor. The composites are coated onto aluminum substrate using doctor blade method conducted an ion-gel electrolyte produce symmetrical properties evaluated through cyclic voltammetry (CV), impedance spectroscopy (EIS), galvanostatic charge/discharge tests (GCD). showed reasonable capacitive behavior in various measurements, including CV, EIS, GCD. highest specific capacitance was 129 F g −1 at 20 mV s .