Mitigating Electrolyte Flooding for Electrochemical CO₂Reduction via Infiltration of Hydrophobic Particles in a Gas Diffusion Layer

Achieving operational stability at high current densities remains a challenge in CO2 electrolyzers due to flooding of the gas diffusion layer (GDL) that supports the electrocatalyst. We mitigated electrode flooding at high current densities using a vacuum-assisted infiltration method to embed 200-400 nm-sized polytetrafluoroethylene (PTFE)...