Operando X‐Ray Absorption Spectroscopy Shows Iron Oxidation Is Concurrent with Oxygen Evolution in Cobalt–Iron (Oxy)hydroxide Electrocatalysts

作者：Dr Lisa J Enman; Dr Michaela Burke Stevens; Meir Haim Dahan; Dr Michael R Nellist; Prof Maytal Caspary Toroker; Prof Shannon W Boettcher

来源：Angewandte Chemie - International Edition, 2018, 57(39): 12840-12844.

DOI：10.1002/anie.201808818

• Electrocatalysts
• Heterogeneous catalysis
• Oxygen evolution
• Water electrolysis
• X-ray absorption spectroscopy

Abstract(#br)Iron cations are essential for the high activity of nickel and cobalt‐based (oxy)hydroxides for the oxygen evolution reaction, but the role of iron in the catalytic mechanism remains under active investigation. Operando X‐ray absorption spectroscopy and density functional theory calcula...