Operando Topography and Mechanical Property Mapping of CO2 Reduction Gas-Diffusion Electrodes Operating at High Current Densities

Here, in this research article we develop an electrochemical flow cell for EC-AFM of GDEs for CO 2 R and provide an in-depth analysis of challenges, best practices, and possible future improvements for the technique. Specifically, we demonstrate continuous operando EC-AFM topography and mechanical property map recording during CO 2 R reactor operation at 1, 10, and 100 mA cm -2 .