Résumé
The cover artwork depicts the electrochemical capture of concerted ion, electron, and atom motions during the galvanic replacement reaction (GRR) of silver by gold in silver nanoparticles. A mathematical model based on autocatalytic networks and cascade mechanisms explains the GRR output signal, which is the time‐ and concentration‐dependent open‐circuit potential. The model provides access to the kinetic parameters that describe the dynamics of this three‐by‐one galvanic exchange event. More information can be found in the Research Article by Yaovi Holade and Bonito Aristide Karamoko (DOI: 10.1002/celc.202500338).