Evaluating silver nickelate-reduced graphene oxide for water splitting: A machine learning approach

The oxygen evolution reaction (OER) is a key step in water electrolysis for sustainable hydrogen (H2) production, yet its sluggish kinetics hinder overall efficiency. To address this, a novel hybrid catalyst, silver nickelate embedded on reduced graphene oxide (NiAgO2-rGO), was synthesized via a hydrothermal method and thor-oughly characterized. XRD analysis confirmed a rhombohedral NiAgO2 phase with an average particle size of ~17.54 nm. Electrochemical measurements using cyclic voltammetry and linear sweep voltammetry on an flourine-doped tin oxide (FTO) electrode showed promising OER activity, delivering a potential of 1.4959 V vs. RHE at 10 mAcm