Single-Atom Catalysts on Covalent Organic Frameworks for CO2 Reduction

The long-unresolved issue of CO2 release and the resulting atmospheric change can be solved through the application of effective catalysts. Thus, single-atom catalysts (SACs) have been rapidly developed for the CO2 reduction reaction (CO2RR), as they show improved catalytic metrics and enable the generation of C2+ products. Among numerous novel SACs, such as those based on graphene, metal-organic frameworks, and covalent organic frameworks (COFs), the COF-based SACs are the most promising owing to their high stability, porosity, and designability. Considering this, we describe two synthesis methods of COF-based SACs: ligand coordination and macrocycle backbone integration, and explore the pros and cons of each. We also propose routes for designing superior COF-based SACs and evaluate the factors influencing CO(2)RRs over COF-based SACs, such as metal loading and ligand types.

Automated summary

The article discusses the solution to the long-unresolved issue of CO2 release and atmospheric change through the application of effective catalysts. It focuses on COF-based SACs, which are promising due to their stability, porosity, and designability. The synthesis methods, pros and cons, and factors influencing the catalytic performance of COF-based SACs are explored, with the aim of designing superior COF-based SACs.