Developing　efficient　and　stable　noble-metal-free　electrocatalysts　for　the　oxygen　evolution　reaction　(OER)　is　crucial　for　advancing　renewable　energy　technologies.　Herein,　we　synthesized　Fe1.5Ce-NDC　through　a　solvothermal　approach,　which　exhibited　a　hierarchically　porous　morphology　that　maximize　active　site　exposure　and　facilitates　rapid　mass　transport.　Synergistic　Fe-Ce　interactions　optimize　electronic　structure,　accelerate　charge　transfer　through　dynamic　surface　reconstruction,　and　form　highly　active　FeOOH　species　that　ensure　long-term　catalytic　stability.　Thus,　Fe1.5Ce-NDC　achieves　an　ultra-low　overpotential　of　236　mV　at　10　mA　cm−2　and　Tafel　slope　of　52　mV　dec−1,　significantly　outperforming　conventional　RuO2　catalysts,　even　though　maintaining　exceptional　stability　for　76　h　at　100　mA　cm−2.　Operando　Raman　and　ATR-FTIR　spectroscopy　confirm　that　Fe1.5Ce-NDC　follows　an　adsorbate　evolution　mechanism　(AEM),　where　Ce　facilitates　Fe　stabilization　and　enhances　reaction　kinetics.　Furthermore,　in　two-electrode　system　Fe1.5Ce-NDC(+)　||　Pt/C(−)　achieves　low　cell　voltage　of　1.65　V　at　100　mA　cm−2　and　maintains　stability　over　100　h　at　100　mA　cm−2,　demonstrating　durability　under　practical　conditions.　These　results　underscore　transformative　nature　of　Fe-Ce　interactions　in　optimizing　charge　transfer,　stabilizing　active　sites,　and　enhancing　OER　efficiency,　establishing　Fe-based　MOFs　as　remarkably　effective,　durable,　and　scalable　catalyst　for　sustainable　energy　conversion　and　hydrogen　production　applications.　©　2025　Elsevier　Ltd