Cover Picture: Durable Nickel‐Iron (Oxy)hydroxide Oxygen Evolution Electrocatalysts through Surface Functionalization with Tetraphenylporphyrin (Angew. Chem. Int. Ed. 51/2022)

Abstract

State-of-the-art nickel–iron oxyhydroxide catalysts suffer from loss of iron under oxygen evolution reaction (OER) potential. In their Research Article (e202214541), Jaeyoung Lee and co-workers develop a stable OER electrocatalyst by adding tetraphenylporphyrin protective layers. They accelerate the redeposition of eluted iron onto the electrocatalyst by forming a nonpolar–polar interface. This not only prolongs the iron population but also the lifetime of the electrocatalyst. State-of-the-art nickel–iron oxyhydroxide catalysts suffer from loss of iron under oxygen evolution reaction (OER) potential. In their Research Article (e202214541), Jaeyoung Lee and co-workers develop a stable OER electrocatalyst by adding tetraphenylporphyrin protective layers. They accelerate the redeposition of eluted iron onto the electrocatalyst by forming a nonpolar–polar interface. This not only prolongs the iron population but also the lifetime of the electrocatalyst. Sonochemistry Biosensors