Stable and efficient electrochemical nitrate reduction to ammonia via Fe₂O₃/SrCo₀.₅Fe₀.₅O₃ perovskite nanofiber composite

Electrochemical nitrate reduction to ammonia using the FO/SCFO perovskite electrocatalyst presents a sustainable method for decentralized ammonia production. This catalyst, synthesized through electrospinning, is based on cobalt-doped SrFeO₃ (SCFO) nanofibers and shows promise due to its phase-pure structures verified by XRD and a porous morphology observed through SEM. Key electrochemical tests, including LSV, CV, and EIS, indicate enhanced surface area, charge transfer, and catalytic efficiency, achieving a Faradaic efficiency of 66.4% and an ammonia yield of 15.95 mg h⁻¹ mg⁻¹cat. The catalyst maintains excellent stability over 15 cycles, illustrating a reliable and cost-effective method for nitrate-to-ammonia conversion.