Dynamic Surface Chemistry of Catalysts surface chemistry controls the oxygen evolution reaction (OER) under a given set electrocatalytic servicing conditions. In article number 2100011, Zongkui Kou, Xin Li, Xiaorui Gao, John Wang, and co-workers review two competing processes, reversible irreversible reconstruction, where balance is affected by both pre-catalyst internal externally applied fiel...

The commercialization of proton exchange membrane fuel cells (PEMFCs) could provide a cleaner energy society in the near future. However, sluggish reaction kinetics and harsh conditions oxygen reduction affect durability cost PEMFCs. Most previous reports on Pt-based electrocatalyst designs have focused more improving their activity; however, with PEMFCs, has received increasing attention. In-d...

Electrochemical water splitting operated under acidic conditions provides a clean approach to generate hydrogen fuels. Currently, the sluggish kinetics of oxygen evolution reaction (OER) at anode is bottleneck limiting splitting. Here, we report that OER activity Ir, one most commonly used catalysts, can be boosted by forming phase boundaries with Au. Mixed Au and Ir catalysts were synthesized ...