Tuning the electronic structure of a metal–organic framework for an efficient oxygen evolution reaction by introducing minor atomically dispersed ruthenium

The establishment of efficient oxygen evolution electrocatalysts is great value but also challenging. Herein, a durable metal–organic framework (MOF) with minor atomically dispersed ruthenium and an optimized electronic structure constructed as electrocatalyst. Significantly, the obtained NiRu0.08-MOF doping Ru only needs overpotential 187 mV at 10 mA cm?2 Tafel slop 40 dec?1 in 0.1 M KOH for reaction, can work continuously more than 300 h. Ultrahigh mass activity achieved, reaching 56.7 A g?1Ru 200 mV, which 36 times higher that commercial RuO2. X-ray adsorption spectroscopy density function theory calculations reveal on metal sites MOFs expected to optimize nickel sites, thus improving conductivity catalyst optimizing energy intermediates, resulting significant optimization electrocatalytic performance. This study could provide new avenue design stable MOF electrocatalysts.