The development of high-performance electrocatalysts for the oxygen evolution reaction (OER) is crucial for advancing sustainable energy technologies such as water electrolysis and rechargeable metal-air batteries. In this study, a ruthenium-doped NiFe bimetallic metal-organic framework (Ru-NiFe-MOF) was successfully synthesized via a simple one-pot hydrothermal method and directly grown on nickel foam (NF), resulting in Ru-NiFe-MOF/NF composites. The incorporation of Ru into the NiFe-MOF structure significantly enhances the electrocatalytic activity and stability toward OER in alkaline media. The optimized Ru-NiFe-MOF/NF electrode exhibits an ultralow overpotential of 205 mV to achieve a current density of 10 mA cm⁻², a Tafel slope of only 50 mV dec⁻¹, and outstanding long-term durability exceeding 100 hours at 10 mA cm⁻² in 1 M KOH. These superior performances are attributed to the synergistic effects of Ru doping, which modulates the electronic structure of active sites, improves charge transfer kinetics, and increases the number of accessible catalytic centers.CD21 Antibody web Characterization techniques including XRD, SEM, TEM, HRTEM, SAED, EDX, and XPS confirm the successful formation of Ru-doped amorphous nanoparticles with uniform distribution of Ru, Ni, Fe, C, and O elements.LRRFIP1 Antibody Data Sheet The high surface area and nanostructured morphology facilitate efficient mass transport and electrolyte penetration.PMID:35245740 Electrochemical impedance spectroscopy reveals a reduced charge-transfer resistance (Rct = 1.4 Ω), indicating enhanced reaction kinetics. Furthermore, the turnover frequency (TOF) analysis confirms that Ru doping significantly boosts intrinsic activity per active site. Post-stability characterization by SEM, EDX, and XPS demonstrates excellent structural and chemical stability after prolonged operation, with minimal changes in surface composition and oxidation states. This work presents a rational design strategy for constructing robust, cation-doped MOF-derived catalysts with high efficiency and durability, offering promising prospects for next-generation electrochemical energy conversion systems.MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. We have professionally experienced and friendly staff to meet your needs. We are a competent and trustworthy partner for your research and scientific projects.Related websites: https://www.medchemexpress.com