Facile synthesis of triazine-triphenylamine-based microporous covalent polymer adsorbent for flue gas CO2 capture
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Type
ArticleKAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Engineering Program
Physical Science and Engineering (PSE) Division
KAUST Grant Number
URF/1/1378fundBAS/1/1375
Date
2017-07-17Online Publication Date
2017-07-17Print Publication Date
2018-01Permanent link to this record
http://hdl.handle.net/10754/625216
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Show full item recordAbstract
The sustainable capture and sequestration of CO2 from flue gas emission is an important and unavoidable challenge to control greenhouse gas release and climate change. In this report, we describe a triazine-triphenylamine-based microporous covalent organic polymer under mild synthetic conditions. 13C and 15N solid-state NMR and FTIR analyses confirm the linkage of the triazine and triphenylamine components in the porous polymer skeleton. The material is composed of spherical particles 1.0 to 2.0 μm in size and possesses a high surface area (1104 m2/g). The material exhibits superb chemical robustness under acidic and basic conditions and high thermal stability. Single-component gas adsorption exhibits an enhanced CO2 uptake of 3.12 mmol/g coupled with high sorption selectivity for CO2/N2 of 64 at 273 K and 1 bar, whereas the binary gas mixture breakthrough study using a model flue gas composition at 298 K shows a high CO2/N2 selectivity of 58. The enhanced performance is attributed to the high Lewis basicity of the framework, as it favors the interaction with CO2.Citation
Das SK, Wang X, Lai Z (2017) Facile synthesis of triazine-triphenylamine-based microporous covalent polymer adsorbent for flue gas CO 2 capture. Microporous and Mesoporous Materials. Available: http://dx.doi.org/10.1016/j.micromeso.2017.07.038.Sponsors
We gratefully acknowledge financial support from the King Abdullah University of Science and Technology (KAUST), competitive research grant URF/1/1378 and baseline fundBAS/1/1375.Publisher
Elsevier BVAdditional Links
http://www.sciencedirect.com/science/article/pii/S1387181117305103ae974a485f413a2113503eed53cd6c53
10.1016/j.micromeso.2017.07.038