Ultrathin RuRh@(RuRh)O<sub>2</sub>core@shell nanosheets as stable oxygen evolution electrocatalysts
Kai Wang, Bolong Huang, Weiyu Zhang, Fan Lv, Yi Xing, Wenshu Zhang, Jinhui Zhou, Wenxiu Yang, Fangxu Lin, Peng Zhou, Mingqiang Li, Peng Gao, Shaojun Guo
Abstract
We report a novel architecture of ultrathin RuRh@(RuRh)O<sub>2</sub>core/shell nanosheets with a core of ultrathin metallic RuRh nanosheets and a shell of (RuRh)O<sub>2</sub>oxides as a superb electrocatalyst toward the oxgen evolution reaction (OER), better than most of the state-of-the-art Ru-based or Ir-based electrocatalysts. Moreover, the RuRh@(RuRh)O<sub>2</sub>core/shell nanosheets exhibit good durability because the (RuRh)O<sub>2</sub>oxide shell protects the normally labile RuRh NS core against dissolution during the OER process.
Topics & Concepts
ElectrocatalystOxygen evolutionMaterials scienceDissolutionOxideShell (structure)MetalNanotechnologyChemical engineeringInorganic chemistryChemistryElectrodeElectrochemistryPhysical chemistryMetallurgyComposite materialEngineeringElectrocatalysts for Energy ConversionAdvanced battery technologies researchFuel Cells and Related Materials