Cluster-Scale MoOx-IrO2 Heterointerfaces Steer Dual-Site Coupling and Interfacial Water Dynamics for Fast and Durable Oxygen Evolution.
Proton exchange membrane water electrolyzers (PEMWEs) are central to renewable-powered green hydrogen production. As the benchmark electrocatalyst for the oxygen evolution reaction (OER), conventional single-phase IrO2 is constrained by linear scaling relations among oxygenated intermediates, compounded by severe mass-...