Site-Specific Asymmetric Coordination Engineering in Defective Metal–Organic Frameworks Stabilizes Cu(I) Active Sites for Selective CO 2 -to-Methanol Photocatalysis
Northeast Normal University · Culture Resource · +1 more institution
Abstract
Solar-driven CO2 reduction by means of single-atom photocatalysis holds great promise for simultaneously addressing carbon neutrality and producing valuable chemicals. The coordination-field engineering of a single-atom (SA) site essentially provides an intriguing strategy to steer the CO2 reduction pathway. We report herein the site-specific confinement of Cu SA with an asymmetric coordination microenvironment in defective MIL-125-NH2 to facilitate photocatalytic CO2-to-CH3OH conversion. This is achieved by precisely anchoring a flexible N-heteromacrocyclic ligand of tetraxetan (DOTA) on unsaturated Ti-oxo clusters to repair the missing-linker defect in heat-treated MIL-125-NH2, followed by Cu-DOTA chelation…
Citation impact
- FWCI
- 24.56
- Percentile
- 100%
- References
- 59
Authors
7Topics & keywords
- Photocatalysis
- Selectivity
- Ligand (biochemistry)
- Yield (engineering)
- Methanol
- Catalysis