MIT News  November 13, 2024 Electrochemical CO2 reduction has emerged as a promising CO2 utilization technology, with Gas Diffusion Electrodes becoming the predominant architecture to maximize performance. The electrodes must maintain robust hydrophobicity to prevent flooding, while also ensuring high conductivity to minimize ohmic losses. Researchers at MIT demonstrated a hierarchically conductive electrode architecture which overcame the scaling limitations by employing inter-woven microscale conductors within a hydrophobic expanded Polytetrafluoroethylene membrane. They developed a model which captured the spatial variability in voltage and product distribution on electrodes due to ohmic losses and used it to rationally design the hierarchical architecture which […]