Fabrication of Carbon-based spinel oxide (MnCr2O4) nanocomposite to enhance the electrochemical performance of the OER process

초록

To enhance the sluggish oxygen evolution process (OER), an exceedingly productive, cost-effective and conspicuous electrocatalyst must be developed. A hydrothermal process was used to fabricate MnCr2O4/rGO composite which is effective for water splitting. Numerous analytical approaches were utilized to judge functionality, crystalline structure, thermal durability, morphology and surface area of described material. Furthermore, electrochemical analysis for the MnCr2O4/rGO composite was performed using nickel foam (NF) as base to assess its electrocatlytic nature. Electrochemical analysis demonstrated that prepared composite exhibits an excellent overpotential (200 mV) and tafel slope value (38 mV dec(-)(1)). MnCr2O4/rGO nanocomposite has an excellent stability. The electrochemical observations suggested that adding rGO into MnCr2O4 directed to an increased surface area lowering resistance and promoting fast electrolyte ion binding. The composite (MnCr2O4/rGO) manufactured by this method can be used for a variety of energy storing and conversion purposes.

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