Proceedings of nanoGe Fall Meeting 2021 (NFM21)
DOI: https://doi.org/10.29363/nanoge.nfm.2021.245
Publication date: 23rd September 2021
Utilizing solar energy and achieving artificial photosynthesis are vital process to building a sustainable society and an effective way to achieve the goal of carbon neutrality. This report presents our research progress in the construction of bias-free water splitting systems and the optimization of CO2 reduction systems. We have proposed a strategy to spatially decouple the light absorption site from the surface reaction site and developed a method to regulate the bending degree of the energy band, thus constructing an efficient charier transport channel to achieve efficient conversion of solar energy to hydrogen energy. In addition, we have combined theoretical calculations and in-situ spectroscopic techniques to clarify the relationship between active site structures and CO2 conversion pathways, leading to the development of a series of site-controlled construction methods. By introducing the basic roles of hydrodynamics into the design of reaction systems, we have elucidated the matching principle between solar energy and electrolyzer power. Through modulating the temperature, velocity and concentration fields in the CO2 reduction system, we have initially achieved the stable production of multi-carbon products under scaling-up conditions.
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