biostudies-literaturePan DU.S. Department of EnergyNational Center for Electron Microscopy and Molecular FoundryLawrence Berkeley National LaboratoryStanford Synchrotron Radiation LightsourceNational Science Foundatione2414534https://www.ebi.ac.uk/biostudies/studies/S-EPMC11904969biostudies-literatureUnknown12(10)Development of high-performance electrocatalysts for water splitting is crucial for a sustainable hydrogen economy. In this study, rapid heating of ruthenium(III) acetylacetonate by magnetic induction heating (MIH) leads to the one-step production of Ru-RuO₂/C nanocomposites composed of closely integrated Ru and RuO₂ nanoparticles. The formation of Mott-Schottky heterojunctions significantly enhances charge transfer across the Ru-RuO₂ interface leading to remarkable electrocatalytic activities toward both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 1 m KOH. Among the series, the sample prepares at 300 A for 10 s exhibits the best performance, with an overpotential of only -31 mV for HER and +240 mV for OER to reach the current density of 10 mA cm⁻<suAdvanced science (Weinheim, Baden-Wurttemberg, Germany)Rapid Synthesis of Carbon-Supported Ru-RuO₂ Heterostructures for Efficient Electrochemical Water Splitting.PMC11904969DE‐AC02‐05CH11231DE-AC02-05CH11231DE-AC02-76SF00515Pan DYu BYu SSaravanan PBridges FTressel JSangoram NOrnelas-Perez AChen SfalseRapid Synthesis of Carbon-Supported Ru-RuO₂ Heterostructures for Efficient Electrochemical Water Splitting.Development of high-performance electrocatalysts for water splitting is crucial for a sustainable hydrogen economy. In this study, rapid heating of ruthenium(III) acetylacetonate by magnetic induction heating (MIH) leads to the one-step production of Ru-RuO₂/C nanocomposites composed of closely integrated Ru and RuO₂ nanoparticles. The formation of Mott-Schottky heterojunctions significantly enhances charge transfer across the Ru-RuO₂ interface leading to remarkable electrocatalytic activities toward both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in 1 m KOH. Among the series, the sample prepares at 300 A for 10 s exhibits the best performance, with an overpotential of only -31 mV for HER and +240 mV for OER to reach the current density of 10 mA cm⁻<su2025-01-01T00:00:00Z2025 Mar2025-04-04T00:32:09.082Z2025-04-04T00:32:09.082ZS-EPMC119049693981316310.1002/advs.202414534