Issue 15, 2023

N-heterocyclic carbene-ligated metal complexes and clusters for photocatalytic CO2 reduction

Abstract

Photocatalytic reduction of CO2 to high value-added products is a green and sustainable approach to reducing excessive CO2 emissions. N-heterocyclic carbenes (NHCs) are a class of structurally versatile ligands due to their strong σ-donor properties, forming covalent bonds with many metal centers, and ability to activate CO2 molecules. The resulting NHC-ligated metal centers and clusters have high stability, tunable π-conjugation and unique reactivity, making them excellent candidates for CO2 photoreduction. Herein, this frontier article provides a comprehensive review of the literatures on active NHC-stabilized metal complexes and clusters for photocatalytic CO2 reduction. We discuss the synthetic strategies of NHC-ligated metal species, including their incorporation into porous matrices such as metal–organic frameworks (MOFs). We also summarize their photocatalytic applications in CO2 reduction, providing guidance for the rational design and development of NHC-based MOF photocatalysts for efficient and sustainable CO2 photoreduction.

Graphical abstract: N-heterocyclic carbene-ligated metal complexes and clusters for photocatalytic CO2 reduction

Article information

Article type
Review Article
Submitted
13 Agd 2023
Accepted
30 Cax 2023
First published
31 Cax 2023

Inorg. Chem. Front., 2023,10, 4313-4321

N-heterocyclic carbene-ligated metal complexes and clusters for photocatalytic CO2 reduction

Y. Jiang and H. Fei, Inorg. Chem. Front., 2023, 10, 4313 DOI: 10.1039/D3QI00678F

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