Solar‐Driven Redox Splitting of CO₂ Using 3D‐Printed Hierarchically Channeled Ceria Structures (Adv. Mater. Interfaces 30/2023)

Redox Splitting of CO2 Solar fuels are produced from CO2 and H2O via a thermochemical redox cycle using concentrated solar radiation. In article 2300452, Steinfeld, Studart, and co-workers produced solar fuels from CO2 and H2O via a thermochemical redox cycle using concentrated solar radiation. The solar reactor contains a structure, made of ceria, which serves the functions of solar absorber and redox material. Hierarchically channeled ceria structures, 3D-printed by direct ink writing, enable efficient volumetric radiative absorption, thereby augmenting the specific fuel yield of the solar reactor.