Modulating D-Band Electron Occupancy in Ru-Based Heterostructures for Durable Acidic Oxygen Evolution.
The rational design of acid-stable, iridium-free electrocatalysts for the oxygen evolution reaction (OER) is critical for advancing proton exchange membrane water electrolysis (PEMWE), yet balancing activity and durability remains a formidable challenge. Herein, we report a RuO2/Mn3O4 heterojunction with engineered oxy...