Issue 29, 2019

Influence of fluorination on CO2 adsorption in materials derived from fluorinated covalent triazine framework precursors

Abstract

Ultra-nanoporous materials derived from fluorinated covalent triazine frameworks (CTFs) have been developed for highly efficient CO2 capture. A CO2 uptake capacity of 6.58 mmol g−1 at 273 K, 1 bar (2.45 mmol g−1 at 0.15 bar) is achieved. The excellent performance is due to the presence of ultra-micropores (0.6–0.7 nm) that tightly fit CO2 and strong electrostatic interactions from the residual fluorine atoms within the framework. Both molecular simulation and deep learning study predict that CTFs with a F content of ∼4.8 wt% and pore size distribution around ∼0.7 nm can give rise to the highest CO2 uptake capacity.

Graphical abstract: Influence of fluorination on CO2 adsorption in materials derived from fluorinated covalent triazine framework precursors

Supplementary files

Article information

Article type
Communication
Submitted
08 Mar 2019
Accepted
03 Jul 2019
First published
05 Jul 2019

J. Mater. Chem. A, 2019,7, 17277-17282

Author version available

Influence of fluorination on CO2 adsorption in materials derived from fluorinated covalent triazine framework precursors

Z. Yang, S. Wang, Z. Zhang, W. Guo, K. Jie, M. I. Hashim, O. Š. Miljanić, D. Jiang, I. Popovs and S. Dai, J. Mater. Chem. A, 2019, 7, 17277 DOI: 10.1039/C9TA02573A

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