CH-π interaction boosts photocatalytic CO2 reduction activity of a molecular cobalt catalyst anchored on carbon nitride

Jia Wei Wang; Marcos Gil-Sepulcre; Hai Hua Huang; Eduardo Solano; Yan Fei Mu; Antoni Llobet; Gangfeng Ouyang

doi:10.1016/j.xcrp.2021.100681

CH-π interaction boosts photocatalytic CO₂ reduction activity of a molecular cobalt catalyst anchored on carbon nitride

Jia Wei Wang, Marcos Gil-Sepulcre, Hai Hua Huang, Eduardo Solano, Yan Fei Mu, Antoni Llobet^*, Gangfeng Ouyang

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

20 Citations (Scopus)

Abstract

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.

Original language	English
Article number	100681
Journal	Cell Reports Physical Science
Volume	2
Issue number	12
DOIs	https://doi.org/10.1016/j.xcrp.2021.100681
Publication status	Published - 22 Dec 2021

Keywords

carbon nitride
CH-π interactions
CO reduction
cobalt complexes
noble-metal-free photocatalysis
solar fuels

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10.1016/j.xcrp.2021.100681

Cite this

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title = "CH-π interaction boosts photocatalytic CO2 reduction activity of a molecular cobalt catalyst anchored on carbon nitride",

abstract = "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.",

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AU - Wang, Jia Wei

AU - Gil-Sepulcre, Marcos

AU - Huang, Hai Hua

AU - Solano, Eduardo

AU - Mu, Yan Fei

AU - Llobet, Antoni

AU - Ouyang, Gangfeng

PY - 2021/12/22

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AB - 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.

KW - carbon nitride

KW - CH-π interactions

KW - CO reduction

KW - cobalt complexes

KW - noble-metal-free photocatalysis

KW - solar fuels

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CH-π interaction boosts photocatalytic CO₂ reduction activity of a molecular cobalt catalyst anchored on carbon nitride

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CCDC 2011002: Experimental Crystal Structure Determination

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CH-π interaction boosts photocatalytic CO2 reduction activity of a molecular cobalt catalyst anchored on carbon nitride

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Keywords

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Datasets

CCDC 2011002: Experimental Crystal Structure Determination

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CH-π interaction boosts photocatalytic CO₂ reduction activity of a molecular cobalt catalyst anchored on carbon nitride