R. Mom

Operando Structure − Activity − Stability Relationship of Iridium Oxides during the Oxygen Evolution Reaction

Nonmonotonic Charging, Overscreening, and Ion Competition in the Electric Double Layer of Platinum Quantified by X‑ray Spectroscopy

The electric double layer (EDL) is an integral part of the local reaction environment in electrocatalysis. Indeed, the strong electric fields and modified interfacial water structure accompanying ion accumulation in the EDL have been shown to impact the performance of nearly every electrocatalytic reaction. However, qu...

Potential‐Dependent Reversible Restructuring of Pt–Au Alloy Electrocatalysts

ABSTRACT The distribution of metals in alloy nanoparticles is a key parameter in their electrochemical performance. Here, we show that for Pt–Au alloys this distribution dynamically responds to the electrochemical environment. Using electrochemical X‐ray photoelectron spectroscopy, we find that the surface composition...