文献类型：期刊文献

英文题名：Electrostatic-Induced Crystal-Rearrangement of Porous Organic Cage Membrane for CO2 Capture

作者：Qu, Kai[1];Xu, Jipeng[1];Dai, Liheng[1];Wang, Yixing[1];Cao, Hongyan[2];Zhang, Dezhu[2];Wu, Yulin[1];Xu, Weiyi[1];Huang, Kang[2];Lian, Cheng[1];Guo, Xuhong[1];Jin, Wanqin[2];Xu, Zhi[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, 30 Puzhu South Rd, Nanjing 211816, Peoples R China

年份：2022

卷号：61

期号：31

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20222412233587);WOS:【SCI-EXPANDED(收录号:WOS:000811178600001)】；

基金：The authors gratefully acknowledge the research fundings provided by National Key R&D Program of China (Grant Nos. 2021YFB3801301), and National Natural Science Foundation of China (Grant Nos. 22075076, 21908054, 21908098).

语种：英文

外文关键词：CO2 Capture; Crystal-Rearrangement; Electrostatic-Induced Rearrangement; Porous Organic Cage

摘要：Porous Organic Cages (POCs) with tunable tailoring chemistry properties and polymer-like processing conditions are of great potential for molecular selective membranes, but it remains challenging in the assembly of high crystalline POCs with regular nanochannels for effective molecular sieving. Here we report an electrostatic-induced crystal-rearrangement strategy for the design of a POC membrane with heterostructure. Due to electrostatic attraction, ionic liquid molecules induced cage molecules to rearrange into a sub-10 nm uniform and defect-free crystal layer, which displayed competitive CO2 separation performance. The optimized hetero-structured membrane exhibited an attractive CO2/N-2 separation selectivity of over 130, which was superior to the state-of-the-art membranes, accompanied with excellent long-term and thermal shock stability. This strategy provides a new inspiration for the preparation of crystal-rearranged membranes with regular channels for gas molecule sieving.