@article{Dai2024, 
author = {Fangxu Dai and Mingming Zhang and Jishu Han and Zhenjiang Li and Shouhua Feng and Jun Xing and Lei Wang},
title = {Bifunctional core–shell co-catalyst for boosting photocatalytic CO2 reduction to CH4},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {3},
pages = {1259-1266},
keywords = {bifunctional, co-catalyst, core–shell, photocatalytic, CO2 reduction},
url = {https://www.sciopen.com/article/10.1007/s12274-023-6107-y},
doi = {10.1007/s12274-023-6107-y},
abstract = {Solar-light-driven CO2 reduction CO to CH4 and C2H6 is a complex process involving multiple elementary reactions and energy barriers. Therefore, achieving high CH4 activity and selectivity remains a significant challenge. Here, we integrate bifunctional Cu2O and Cu-MOF (MOF = metal-organic framework) core–shell co-catalysts (Cu2O@Cu-MOF) with semiconductor TiO2. Experiments and theoretical calculations demonstrate that Cu2O (Cu+ facilitates charge separation) and Cu-MOF (Cu2+ improves the CO2 adsorption and activation) in the core–shell structure have a synergistic effect on photocatalytic CO2 reduction, reducing the formation barrier of the key intermediate *COOH and *CHO. The photocatalyst exhibits high CH4 yield (366.0 μmol·g−1·h−1), efficient electron transfer (3283 μmol·g−1·h−1) and hydrocarbon selectivity (95.5%), which represents the highest activity of Cu-MOF-based catalysts in photocatalytic CO2 reduction reaction. This work provides a strategy for designing efficient photocatalysts from the perspective of precise regulation of components.}
}