Acidic conditions present a solution to carbonate formation in CO2 electrolysis but create a selectivity issue through competing H2 evolution. Here, theoretical methods are used to optimize acidity and select Pd–Cu as a selective electrocatalyst for acidic CO2 reduction with negligible carbonate crossover and high single-pass carbon efficiency.
- Yi Xie
- Pengfei Ou
- Edward H. Sargent
