Tetranuclear Cu-II Cluster as the Ten Node Building Unit for the Construction of a Metal-Organic Framework for Efficient C2H2/CO2 Separation
文献类型： 外文期刊
作者： Xiang, Fahui 1 ; Zhang, Hao 1 ; Yang, Yisi 1 ; Li, Lu 1 ; Que, Zhenni 1 ; Chen, Liangji 1 ; Yuan, Zhen 1 ; Chen, Shimin 1 ; Yao, Zizhu 1 ; Fu, Jianwei 2 ; Xiang, Shengchang 1 ; Chen, Banglin 1 ; Zhang, Zhangjing 1 ;
作者机构： 1.Fujian Normal Univ, Coll Chem & Mat Sci, Fujian Prov Key Lab Polymer Mat, Fuzhou, Peoples R China
2.Fujian Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Fujian Key Lab Agroprod Qual & Safety, Fuzhou, Peoples R China
关键词： C2H2/CO2 Separation; Metal-Organic Framework; Pore Space Partition; Tetranuclear Copper-Based Cluster; pi-Complexation
期刊名称：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION （ 影响因子：16.6； 五年影响因子：15.3 ）
ISSN： 1433-7851
年卷期： 2023 年
页码：
收录情况： SCI
摘要： Rational design of high nuclear copper cluster-based metal-organic frameworks has not been established yet. Herein, we report a novel MOF (FJU-112) with the ten-connected tetranuclear copper cluster [Cu-4(PO3)(2)(mu(2)-H2O)(2)(CO2)(4)] as the node which was capped by the deprotonated organic ligand of H4L (3,5-Dicarboxyphenylphosphonic acid). With BPE (1,2-Bis(4-pyridyl)ethane) as the pore partitioner, the pore spaces in the structure of FJU-112 were divided into several smaller cages and smaller windows for efficient gas adsorption and separation. FJU-112 exhibits a high separation performance for the C2H2/CO2 separation, which were established by the temperature-dependent sorption isotherms and further confirmed by the lab-scale dynamic breakthrough experiments. The grand canonical Monte Carlo simulations (GCMC) studies show that its high C2H2/CO2 separation performance is contributed to the strong pi-complexation interactions between the C2H2 molecules and framework pore surfaces, leading to its more C2H2 uptakes over CO2 molecules.
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