Sowing Single Atom Seeds: A Versatile Strategy for Hyper?Low Noble Metal Loading to Boost Hydrogen Evolution Reaction

The universal preparation of noble metal single-atom catalysts (NMSACs) is critical for efficient sustainable energy conversion. In this study, a versatile sowing strategy proposed to prepare the NMSACs with hyper-low loading. A metal-organic framework derived Ni(OH)x Ni2+ vacancies serves as fertile soil plentiful trapping holes, where Pt atom seeds can be inserted. atoms tend form tetradentate Pt-O4 roots, confining loading concentration range (?0.17 wt%). This Pt-Ni(OH)x catalyst exhibits an overpotential 58 mV at current density 10 mA cm?2 in 1 m KOH hydrogen evolution reaction and needs only 1.47 V achieve ?10 water splitting. approach extended formation other such Ir Ru. thus provides guidance different excellent catalytic performance.