Lattice Strain and Charge Transfer Induced by the Ru@RuO2 Core-Shell Heterostructure Enable Efficient and Durable Acidic Water Oxidation.
Ru-based electrocatalysts are promising for low-cost proton exchange membrane (PEM) electrolyzers, but their stability is severely limited by the overoxidation of Ru sites during the acidic oxygen evolution reaction (OER). Herein, we propose a synthetic approach to convert the typical Ru/RuO2 heterostructure into a wel...