Modulating Host–Guest Interactions in Isoreticular Fe(III)-Doped Co-MOF Precatalysts for Electrocatalytic Oxygen Evolution

compared to MOF-274-Fe-OER (357 mV). Furthermore, the long-term stability tests confirmed robust durability, with MOF-74-Fe-OER retaining 96.9% of its initial performance over 10 h. These results underscore the critical role of pore-engineered MOF precatalysts in optimizing electronic modulation and catalytic efficiency for sustainable water oxidation.