Turning CO2 into valuables with sunlight only

Recycling CO2 into value-added chemicals via photoelectrochemical reduction is a promising path toward carbon neutrality. Reporting in Chem Catalysis, Yap et al. show that an integrated photoelectrode is necessary to reduce CO2 with high efficiency, stability, and selectivity to desired products with sunlight as the only energy source. Recycling CO2 into value-added chemicals via photoelectrochemical reduction is a promising path toward carbon neutrality. Reporting in Chem Catalysis, Yap et al. show that an integrated photoelectrode is necessary to reduce CO2 with high efficiency, stability, and selectivity to desired products with sunlight as the only energy source. A framework for understanding efficient diurnal CO2 reduction using Si and GaAs photocathodesYap et al.Chem CatalysisMay 22, 2023In BriefWe present Si and GaAs photocathodes for solar-driven CO2 reduction, which demonstrate significant energy savings for CO2 conversion to C2+ products. We probed the effect of variable illumination on the complex product distributions of CO2 reduction and developed a framework for assessing the performance of solar-driven CO2 reduction devices under simulated diurnal cycling conditions of solar irradiation to inform future operation of these devices under on-sun environmental conditions. Full-Text PDF