Eco-Friendly Approach on One-Step Chloride Decoration over R-Graphene for Supercapacitor Application

Chlorinated rGO is a promising 2D material with unique properties. A new synthesis method combines chlorine intercalation and graphite sheet surface reduction into a single step. Various tests confirmed the chloride content improves storage capacity. The high chloride content of the material improved the electrolyte's d-spacing and ion mobility, leading to increased storage capacity. Additionally, the potential of chlorinated RGO as an electrode material was examined using a 1 M H₂SO₄ solution as the electrolyte, and various tests including CV, EIS, and GCD were conducted. At a current density of 1 A/g, the chlorinated graphene material exhibited a specific capacitance of 373.4 F/g at a high rate, along with EDL capacitance. It also demonstrated excellent stability over 5000 cycles. These halogenated graphene compounds are highly promising for supercapacitor applications.