Commensurate stacking within confined ultramicropores boosting acetylene storage capacity and separation efficiency

作     者：Zhenghui Huang Kungang Chai Chengjun Kang Rajamani Krishna Zhaoqiang Zhang Zhenghui Huang;Kungang Chai;Chengjun Kang;Rajamani Krishna;Zhaoqiang Zhang

作者机构：Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification TechnologySchool of Chemistry and Chemical EngineeringGuangxi UniversityNanning 530004China Department of Chemical and Biomolecular EngineeringNational University of SingaporeSingapore 117585Singapore Van’t Hoff Institute for Molecular SciencesUniversity of AmsterdamPark 904Amsterdam 1098 XHThe Netherlands 

出 版 物：《Nano Research》 (纳米研究（英文版）)

年 卷 期：2023年第16卷第5期

页      面：7742-7748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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(No.21868002) Dean Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology(No.2021Z010) 

主　　题：adsorption and separation acetylene storage commensurate stacking gas cluster metal-organic frameworks 

摘      要：Developing advanced porous materials possessing both a high storage capacity and selectivity for acetylene(C_(2)H_(2))remains challenging but a sought-after *** we show a strategy involving synergic combination of spatial confinement and commensurate stacking for enhanced C_(2)H_(2)storage and capture via maximizing the host–guest and guest–guest *** ultramicroporous metal-organic frameworks(MOFs),MIL-160 and MOF-303 are elaborately constructed to exhibit ultrahigh C_(2)H_(2)uptakes of 235 and 195 cm^(3)·g^(−1),respectively,due to the confinement effect of the suitable pore sizes and periodically dispersed molecular recognition ***,C_(2)H_(2)capacity of MIL-160 sets a new benchmark for C_(2)H_(2)*** exceptional separation performances of two materials for C_(2)H_(2)over both CO_(2)and ethylene(C_(2)H_(4)),which is rarely observed,outperform most of the benchmark materials for C_(2)H_(2)*** scrutinized the origins of ultrahigh C_(2)H_(2)loading in the confined channels via theoretical *** superior separation efficiency for C_(2)H_(2)/CO_(2)and C_(2)H_(2)/C_(2)H_(4)mixtures with unprecedented C_(2)H_(2)trapping capacity(200 L·kg^(−1))was further demonstrated by dynamic breakthrough experiments.