Expediting the technology readiness level of CO2 electrolysis

Recently, in Nature, Xia, Yao, Wang, and co-workers reported a proton-exchange membrane-based electrolyzer that continuously reduces CO2 to formic acid for more than 5,200 h at a current density of 600 mA cm−2 with a cell voltage of 2.2 V. This preview highlights the significance of this advancement in commercializing the CO2 electrolyzer and outlines the need for the next steps. Recently, in Nature, Xia, Yao, Wang, and co-workers reported a proton-exchange membrane-based electrolyzer that continuously reduces CO2 to formic acid for more than 5,200 h at a current density of 600 mA cm−2 with a cell voltage of 2.2 V. This preview highlights the significance of this advancement in commercializing the CO2 electrolyzer and outlines the need for the next steps.