Activity-Stability Balance Enabled by Orbital Splitting Energy in Ruthenium-Based Oxide Catalysts.
Ruthenium oxides have been the model catalyst for the acidic oxygen evolution reaction. It has been a challenge to achieve both stability and activity and establish a comprehensive descriptor for Ru-based catalysts. Herein, guided by the ligand field theory, we introduce the Ru orbital splitting energy (ΔRu) as a quant...