CO2 electroreduction is a promising process for the production of high-value chemicals, but achieving high selectivities for specific products is challenging. Now, a Faradaic efficiency of 87% for acetate is achieved on a Cu/CuOx catalyst under 58 atm CO2(g), where high and low concentrations of dissolved CO2(aq) and proton donor HCO3− are shown to promote acetate formation, respectively.
- Jiachen Li
- Yun Kuang
- Hongjie Dai