Cation cross-over affects CO2 electroreduction process, yet the detailed effect, especially the cation effect in promising membrane electrode assemblies, needs further investigation. Here the authors reveal that unintentional cation crossover through anion exchange membranes during CO2 electrolysis influences product selectivity towards carbon monoxide or ethylene.
- Gumaa A. El-Nagar
- Flora Haun
- Matthew T. Mayer
