Publisher Correction: Interface engineering breaks both stability and activity limits of RuO2 for sustainable water oxidation

RuO2–CeO2 Lattice Matching Strategy Enables Robust Water Oxidation Electrocatalysis in Acidic Media via Two Distinct Oxygen Evolution Mechanisms

“…To overcome this limitation, various strategies including heterostructure engineering, defect engineering, and doping have been employed to improve both the electrocatalyst activity and durability. − For example, Ling et al demonstrated that by constructing a RuO 2 /CoO x interface, the stability and activity limits of RuO 2 can be overcome, resulting in high OER activity (240 mV at 10 mA cm –2 ) and long-term stability (200 h) under neutral conditions . Kim and co-workers synthesized a Ni-doped metallic-core with an oxide shell of the Ru catalyst through thermal acid treatment, with the resulting electrocatalyst exhibiting outstanding activity with an OER overpotential of only 184 mV at 10 mA cm –2 and stability for about 200 h in acidic media .…”

“…Compared to alkaline water electrolysis, PEMWEs offer many advantages including higher energy efficiency, higher current densities, and a purer hydrogen product. 11,12 However, a strongly acidic working environment necessitates the use of noble metal catalysts in commercial PEMWEs. For instance, platinum is typically employed for the hydrogen evolution reaction (HER) at the cathode, while iridium is used for the oxygen evolution reaction (OER) at the anode.…”

“…26−29 For example, Ling et al demonstrated that by constructing a RuO 2 /CoO x interface, the stability and activity limits of RuO 2 can be overcome, resulting in high OER activity (240 mV at 10 mA cm −2 ) and long-term stability (200 h) under neutral conditions. 12 Kim and co-workers synthesized a Ni-doped metallic-core with an oxide shell of the Ru catalyst through thermal acid treatment, with the resulting electrocatalyst exhibiting outstanding activity with an OER overpotential of only 184 mV at 10 mA cm −2 and stability for about 200 h in acidic media. 30 While significant advances have been made to improve the stability of RuO 2based electrocatalysts for acidic OER, performance still falls well short of the practical requirements.…”

“…Decarbonizing the global energy sector requires the rapid growth of a green hydrogen economy. − Electrocatalytic water splitting is widely considered the best approach for producing hydrogen at scale to support a green hydrogen energy infrastructure, with hydrogen ideally being produced from electricity generated by solar photovoltaics, wind turbines, or hydroelectric turbines. − The two mainstream water splitting technologies currently employed for hydrogen production are proton exchange membrane water electrolyzers (PEMWEs) and alkaline water electrolyzers. Compared to alkaline water electrolysis, PEMWEs offer many advantages including higher energy efficiency, higher current densities, and a purer hydrogen product. , …”

Ferromagnetic ordering correlated strong metal–oxygen hybridization for superior oxygen reduction reaction activity

“…Transition-metal oxides ( 1 ) have received intensive attention from both academia and industry because of their great potential as electrocatalysts for oxygen-related reactions ( 2 ) in economically alkaline polymer electrolyte fuel cells ( 3 ) and alkaline electrolysers ( 4 ). In the past decades, numerous investigations have been devoted to improving the performance of oxide electrocatalysts ( 5 , 6 ) through nanostructuring ( 7 , 8 ), defect introducing ( 9 , 10 ), doping ( 11 , 12 ), and/or phase transition ( 13 , 14 ). Despite great progresses, current performance of oxide electrocatalysts has entered the bottleneck stage, and little room is left for further improvement through material/structure engineering.…”