Efficient capture of C_(2)H_(2)from CO_(2)and C_(n)H_(4)by a novel fluorinated anion pillared MOF with flexible molecular sieving effect

作     者：Lingyao Wang Nuo Xu Yongqi Hu Wanqi Sun Rajamani Krishna Jiahao Li Yunjia Jiang Simon Duttwyler Yuanbin Zhang Lingyao Wang;Nuo Xu;Yongqi Hu;Wanqi Sun;Rajamani Krishna;Jiahao Li;Yunjia Jiang;Simon Duttwyler;Yuanbin Zhang

作者机构：Key Laboratory of the Ministry of Education for Advanced Catalysis MaterialsCollege of Chemistry and Life SciencesZhejiang Normal UniversityJinhua 321004China Van’t Hoff Institute for Molecular SciencesUniversity of AmsterdamScience Park 904Amsterdam 1098 XHthe Netherlands Department of ChemistryZhejiang UniversityHangzhou 310027China 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第2期

页      面：3536-3541页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：support by the National Natural Science Foundation of China(No.21908193) Jinhua Industrial Key Project(No.2021A22648) S.D.acknowledged the financial support by the National Natural Science Foundation of China(No.21871231) the Special Funds for Basic Scientific Research of Zhejiang University(Nos.2019QNA3010 and K20210335) support by the National Natural Science Foundation of China(No.22205207) 

主　　题：metal-organic frameworks(MOFs) C_(2)H_(2)/CO_(2)separation acetylene recovery molecular sieving flexible MOFs 

摘      要：The efficient separation of acetylene(C_(2)H_(2))from carbon dioxide(CO_(2))and CnH_(4)(n=1 and 2)to manufacture high purity C_(2)H_(2)and recover other light hydrocarbons is technologically important,while posing significant ***,we reported a new TiF62−anion(TIFSIX)pillared metal-organic framework(MOF)ZNU-5(ZNU=Zhejiang Normal University)with ultramicropores for highly selective C_(2)H_(2)capture with low adsorption heat through gate opening based molecular sieving ***-5 takes up a large amount of C_(2)H_(2)(128.6 cm^(3)/g)at 1.0 bar and 298 K but excludes CO_(2),CH_(4),and C_(2)H_(4).Such high capacity has never been realized in MOFs with molecular *** breakthrough experiments further confirmed the highly selective C_(2)H_(2)separation performance from multi-component gas mixtures.3.3,2.8,and 2.2 mmol/g of C_(2)H_(2)is captured at ZNU-5 from equimolar C_(2)H_(2)/CO_(2),C_(2)H_(2)/CO_(2)/CH_(4),and C_(2)H_(2)/CO_(2)/CH_(4)/C_(2)H_(4)mixtures,***,2.6,2.0,and 1.5 mmol/g of98%purity C_(2)H_(2)can be recycled from the desorption *** high working capacity,low adsorption heat,as well as good recyclability,ZNU-5 is promising for C_(2)H_(2)purification.