Exploring the Synergistic Effects of Ni-MOF@PANI/GO nanocomposite: Synthesis and Electrochemical Performance for Supercapacitor Electrode Material

Benzene 1,3,5-tricarboxylic acid Metal organic frameworks (BTC MOFs), a class of exceptional porous materials with multifunctional capabilities and capable nanogeometries, have drawn a lot of attention lately from researchers as potential materials for supercapacitor electrodes. This study introduces a novel Ni-MOF/PANI/GO ternary nanocomposite synthesized through a cost-effective chemical oxidative polymerization method. Graphene oxide (GO) was synthesized by modified Hummers’ method. Metal organic framework (MOF) was synthesized by Hydrothermal Method and Polyaniline (PANI) was synthesized by chemical oxidative polymerization method to study the effect of GO and PANI of electrochemical properties of Ni-MOF. Structural characterization and morphology of developed materials was carried out by powder X-ray diffraction (XRD), FTIR spectroscopy, UV-Vis spectroscopy, and PL spectroscopy. As a result, the grown structure of ternary nanocomposite having an average crystalline size of 13.767 nm was successfully confirmed by XRD analysis. Different bonds & transmittance peaks are analyzed by FTIR. Also D and G bands are also explained during the Raman Analysis. The optical band gap (E _g ) approximately ~ 4.02 eV was confirmed by UV-Vis and PL spectra. Electrochemical characterization was performed using CV, GCD and EIS analysis in 3 M KOH solution. CV revealed that ternary composite showed maximum specific capacitance of 206 Fg ^− 1 at 1 mVs ^− 1 in 3 M KOH with charge retention of ca. 81.5% after 5000 charge-discharge cycles. The aim of this study is to synthesize a novel Ni-MOF/PANI/GO ternary nanocomposite and evaluate its electrochemical properties for supercapacitor applications.