Unlocking Oxygen Evolution: The Impact of Hetero Atom Doping on NiFe-Based Pre-Catalysts and Their Transformation into Ultrathin Layered Double Hydroxides

Green energy production by electrochemical water splitting is only able to fulfill the future global requirement for energy. Water molecules split into H2 and O2 by several electrocatalysts. The anodic oxidation of water for oxygen evolution reactions follows a kinetically sluggish mechanism and required some extra overpotential. In this regard, NiFe-based electrocatalysts are of low cost and highly efficient for OER activity. Herein, we have studied the effect of hetero-atom doping in the modulation of the electronic structure, increased number of active sites and improved electrochemical surface area enhanced the OER activity. The Nife-based electrocatalysts as pre catalyst are most renounced and transformed in to high valency active phase metal catalysts. In this work, we have proposed a mini review for the enhanced activity of hetero atom-doped NiFe-based Pre-Catalyst and their Structural Reconstruction into Ultrathin Layered Double Hydroxide for oxygen evolution reaction. The transformation in morphology and reconstruction of the surface in layered double hydroxide of NiFe-based pre-catalyst significantly enhanced the OER activity of the catalyst. The heteroatom doping enhances the synergic effect of the catalyst and enhanced electrochemical OER activity.