The construction of efficient noble-metal-free systems for visible-light-driven CO2 reduction still remains a key challenge. Here, we report an efficient molecular hybrid system composed of a Co-PYN5 catalyst that contains a pyrene functionality that anchors on g-C3N4 dye surface via CH-π interactions. This hybrid material achieves high turnover numbers (TONs) and turnover frequencies (TOFs) for visible light reduction of CO2 to CO of 533 and 95 h−1 that are within the best reported up to now. The improved performance is rationalized in terms of the electronic coupling that takes place with the π system of the pyrene group with both the g-C3N4 surface and the Co-pyridyl moiety of the catalysts.
- carbon nitride
- CH-π interactions
- CO reduction
- cobalt complexes
- noble-metal-free photocatalysis
- solar fuels
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Wang, J. (Creator), Gil-Sepulcre, M. (Contributor), Huang, H. (Contributor), Solano, E. (Contributor), Mu, Y. (Contributor), Llobet Dalmases, A. (Contributor) & Ouyang, G. (Contributor), Cambridge Crystallographic Data Centre, 20 Jun 2022