Covalent Organic Frameworks for Carbon Dioxide Capture from Air
Kavli Energy NanoScience Institute · University of California, Berkeley · +1 more institution
Abstract
We report the first covalent incorporation of reactive aliphatic amine species into covalent organic frameworks (COFs). This was achieved through the crystallization of an imine-linked COF, termed COF-609-Im, followed by conversion of its imine linkage to base-stable tetrahydroquinoline linkage through aza-Diels–Alder cycloaddition, and finally, the covalent incorporation of tris(3-aminopropyl)amine into the framework. The obtained COF-609 exhibits a 1360-fold increase in CO2 uptake capacity compared to the pristine framework and a further 29% enhancement in the presence of humidity. We confirmed the chemistry of framework conversion and corroborated the enhanced CO2 uptake phenomenon with and without humidity…
Citation impact
- FWCI
- 22.00
- Percentile
- 100%
- References
- 35
Authors
5- HLHao Lyu
Kavli Energy NanoScience Institute, University of California, Berkeley
- HLHaozhe Li
Kavli Energy NanoScience Institute, University of California, Berkeley
- NHNikita Hanikel
Kavli Energy NanoScience Institute, University of California, Berkeley
- KWKaiyu Wang
Kavli Energy NanoScience Institute, University of California, Berkeley
- OMOmar M. YaghiCorresponding
King Abdulaziz City for Science and Technology, Kavli Energy NanoScience Institute, University of California, Berkeley
Topics & keywords
- Chemistry
- Covalent bond
- Covalent organic framework
- Imine
- Amine gas treating
- Fourier transform infrared spectroscopy
- Dynamic covalent chemistry
- Cycloaddition