Enhanced Electrocatalytic Activity of SrMoO 3 /Reduced Graphene Oxide Nanocomposite for OER

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Electrocatalytic water splitting is intended to be a reliable route of producing hydrogen as a fuel using sustainable and renewable energy; however, its commercial applicability is hampered by the oxygen evolution reaction (OER). Perovskite‐structured oxides have attracted notable research interest as promising catalysts toward OER in alkaline conditions. Herein, we report a novel anode material, SrMoO 3 , fabricated via a hydrazine‐assisted wet‐chemical route, afterward coupled with reduced graphene oxide (rGO) to accelerate the OER activity. Structural analysis of the developed electrocatalyst was examined and confirmed by using physical techniques, whereas the electrochemical analysis of SrMoO 3 /rGO nanocomposite was executed in an alkaline solution. The SrMoO 3 /rGO nanocomposite displayed pronounced potential for OER, demonstrating its ability to furnish favorable reaction sites and facile charge transport routes. The fabricated electrocatalyst manifested a decreased overpotential ( η ) of 236 mV at 10 mA cm −2 , and a significantly low Tafel slope (37 mV dec −1 ). Also, it sustained durability for 80 h, implying that the fabricated nanocomposite material holds optimized electrocatalytic efficiency and swift reaction kinetics. All the above‐stated results validate SrMoO 3 /rGO as a promising contender for high‐performance OER electrocatalysis.