Boosting CO2 Reduction: Creating an Efficient Path for Gas Transport

Interfacial chemistry in gas-phase flow reactors plays a critical role in improving CO2 electrolysis performance. The reaction productivity is generally limited by the inherently low gas availability on the catalyst surface. In the current issue of Science, Sargent et al. proposed a highly efficient system that enabled hydrocarbon production with an impressive current density greater than 1 A/cm2. The gas diffusion is largely enhanced to maximize the contact area and interaction between CO2 and catalyst, significantly promoting the CO2 reduction and suppressing the undesired hydrogen evolution.