A perfluorinated covalent triazine-based framework for highly selective and water-tolerant CO2 capture
A perfluorinated covalent triazine-based framework for highly selective and water-tolerant CO2 capture
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DOI：
10.1039/c3ee42548g
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发表时间：
2013-12-01
影响因子：
32.5
通讯作者：
Han, Yu
中科院分区：
文献类型：
--
作者：
Zhao, Yunfeng;Yao, Ke Xin;Han, Yu
我们设计并合成了一种全氟共价三嗪骨架(FCTF-1)，用于选择性捕获二氧化碳。氟(F)基团的引入在提高骨架对二氧化碳的吸附和分离能力方面起到了多重作用。热力学上，强极性的C-F键通过静电相互作用促进了二氧化碳的吸附，特别是在低压下。在273K和0.1bar的平衡吸附下，FCTF-1‘S对CO2的吸收率为1.76mmolg(-1)，超过了迄今报道的任何多孔有机聚合物的CO2(2w)吸附容量。此外，加入F基团还产生了大量的超微孔(
We designed and synthesized a perfluorinated covalent triazine-based framework (FCTF-1) for selective CO2 capture. The incorporation of fluorine (F) groups played multiple roles in improving the framework's CO2 adsorption and separation capabilities. Thermodynamically, the strongly polar C-F bonds promoted CO2 adsorption via electrostatic interactions, especially at low pressures. FCTF-1's CO2 uptake was 1.76 mmol g(-1) at 273 K and 0.1 bar through equilibrium adsorption, exceeding the CO(2)w adsorption capacity of any reported porous organic polymers to date. In addition, incorporating F groups produced a significant amount of ultra-micropores (