Metal Organic Framework Derived Spinel Nickel‐Ferrites Employing Reduced Graphene Oxide Template for Supercapacitor and Photocatalytic Dye Degradation

Abstract

Spinel oxides from transition metals are the most crucial components for producing supercapacitive electrodes and photocatalytic semiconductor materials. However poor electrical conductivity and restricted specific energy of these materials are two main drawbacks for energy storage applications. This investigation used reduced graphene oxide templated spinel nickel ferrites nanoparticles (RGO@SNFs), synthesized using Fe2Ni MIL‐88 MOF via hydrothermal conditions followed by a pyrolysis process. The structural properties and morphology of the hybrid are characterized through several methods, including XRD, FTIR, BET‐PSD, and FESEM. Superconducting electrochemical studies such as Galvano static charge‐discharge, impedance spectroscopy and cyclic voltammetry are carried out on a hybrid electrode to examine the impact of the RGO template on SNF nanoparticles. This electrode may be an alluring choice for supercapacitor applications because of its capacitance 115 F/g and retention rate of approximately 95 % following 2000 cycles. Additionally, a model dye degradation process utilizing Rhodamine B (RhB) was used to examine the photodegradation action of these materials. The designed catalyst also represents excellent photo‐degradation activity toward RhB, and seventy‐five minutes of sun light were enough to destroy about 99 % of the dye.