Researchers at the Interface Science Department (ISC) have shown that electrochemical reactions at solid-solution interfaces can be impacted by two closely related, yet, distinct factors. The applied potential can drive a reaction forward. Additionally, electric fields in the extended environment can modulate the ensembles that determine the activation parameters, without necessarily constituting a thermodynamic driving force themselves. Here, the researchers within Dr. Sebastian Oener‘s group within Prof. Roldán Cuenya ISC department were able to independently control not only the applied potential, but also the magnitude of the electric field at a fixed potential, and study their impact on the activation parameters.