文献类型：期刊文献

英文题名：Efficient CO2 capture by triptycene-based microporous organic polymer with functionalized modification

作者：He, Yan[1];Zhu, Xiang[1];Li, Yankai[1];Peng, Changjun[1];Hu, Jun[1];Liu, Honglai[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2015

卷号：214

起止页码：181

外文期刊名：MICROPOROUS AND MESOPOROUS MATERIALS

收录：;EI(收录号：20152200900133);WOS:【SCI-EXPANDED(收录号:WOS:000356749900024)】；

基金：Financial support for this work was provided by the National Natural Science Foundation of China (No. 21136004, 91334203, 21176066), National Basic Research Program of China (2013CB733501), and the Fundamental Research Funds for the Central Universities of China (No. 222201313001).

语种：英文

外文关键词：Microporous organic polymers; Functionalized modification; CO2 capture; Selectivity

摘要：Microporous organic polymers (MOPs) are an emerging class of materials constructed from organic molecular building blocks. However, to design MOPs with surface functionalized porosities and high CO2 adsorption capacity is still a critical challenge. In this work, starting from different chemical functionalized triptycene monomers, including amino (-NH2), formyl (-CHO), acetyl (-COCH3) and nitro (-NO2) functional groups, we achieved a series of three-dimensional rigid framework of pre-functionalized triptycene-based polymers (TPPs) through a simple one-step Friedel Crafts reaction. Moreover, alkyl-substituted amino groups were further incorporated into the network by the post-synthetic modification of amine pre-functionalized polymer TPP-1. The resulted microporous organic polymer TPP-1-NH2 presented an excellent CO2 adsorption capacity (4.17 mmol g(-1) at 273 K, 1 bar) and a high CO2/N-2 selectivity (43.6 at 273 K), which was ascribed to the predominant micropores and high CO2 isosteric adsorption heat of 41 kJ mol(-1). Therefore, it is believed that these MOPs with high physicochemical stability are promising candidates for selective CO2 capture by employing this functionalized modification method. (C) 2015 Elsevier Inc. All rights reserved.