Integrating single Ni sites into biomimetic networks of covalent organic frameworks for selective photoreduction of CO<sub>2</sub>
Xin Chen, Qiang Dang, Rongjian Sa, Liuyi Li, Liuyi Li, Lingyun Li, Lingyun Li, Jinhong Bi, Zizhong Zhang, Jinlin Long, Yan Yu, Zhigang Zou
Abstract
activation and conversion, while the PI-COFs not only act as a photosensitizer to generate charge carriers but also exert a promoting effect on the selectivity. The optimized PI-COF with a triazine ring exhibits excellent activity and selectivity. A possible intra- and inter-molecular charge-transfer mechanism was proposed, in which the photogenerated electrons in PI-COFs are efficiently separated from the central ring to the diimide linkage, and then transferred to the single Ni active sites, as evidenced by theoretical calculations.
Topics & Concepts
Covalent bondPhotocatalysisFabricationNanotechnologySelective reductionReduction (mathematics)Materials scienceCombinatorial chemistryChemistryOrganic chemistryCatalysisMedicinePathologyGeometryMathematicsAlternative medicineCovalent Organic Framework ApplicationsAdvanced Photocatalysis TechniquesMetal-Organic Frameworks: Synthesis and Applications