Fig. 6: Demonstration of utilizing natural light for on-demand CO2 conversion.
a Proposed block flow diagram to achieve on-demand CO2 conversion based on electron-hydrogen storage in catalysts with sunlight and water and their release with residual heat. The images on the left show the catalyst under natural light, demonstrating the process of collecting hydrogen atoms and electrons. b Product yields for Cu/HxWO3 prepared under natural sunlight and simulated sunlight. c Product yields for Cu/HxWO3 after being stored in the dark for 15 days and 90 days. d Product yields for Cu/HxWO3 with different catalyst dosages. The error bar represents the standard deviation of the measurements.
