Facile Fabrication of Mn-Doped FeTiO₃ Nanostructure via Hydrothermal Route for Robust Oxygen Evolution Reaction

The process of water splitting has already been researched as another possible method for the Production of electrical energy. Research on water splitting is also very important, despite the widespread focus on creating non-toxic, highly effective, and commercially viable electrocatalysts for oxygen evolution process (OER). In OER, perovskite oxides have recently demonstrated their viability as a substitute for catalysts composed of non-precious metals, and as a novel category of efficient electrocatalysts. In this regard, a single-step hydrothermal procedure was used to produce a perovskite-structured FeTiO₃. To enhance the OER performance of FeTiO₃ nanomaterial, manganese was doped into perovskite-type FeTiO₃. Thus, in an alkaline medium, the produced nanomaterial was utilized for electrochemical investigations through electrochemical impedance spectroscopy, cyclic voltammetry, linear sweep voltammetry, and chronoamperometry, and responded to minimal Tafel value (32 mV dec⁻¹) and reduced overpotential (190 mV). Furthermore, the produced sample remained stable during 4000 CV cycles. SEM as well as XRD were employed to evaluate the synthesized material's shape and crystal structure. The results show that doping may enhance the catalytic performance of perovskite oxide for OER. This study reveals a novel strategy to create affordable and effective doped electrocatalysts.