Ma Zhi Long, Liu Pu Xu, Liu Zhong Yi, Wang Jia Jun, Li Li Bo, Tian Li
Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China.
College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
Inorg Chem. 2021 May 3;60(9):6550-6558. doi: 10.1021/acs.inorgchem.1c00357. Epub 2021 Apr 16.
A versatile microporous metal-organic framework (MOF), {[Cu(TIA)]·1.5CHOH} (), was successfully obtained via the solvothermal reaction of cuprous(II) salt with the bifunctional ligand 3-(1-1,2,4-triazol-1-yl)isophthalic acid. Single-crystal X-ray diffraction studies indicate that contains an three-dimensional skeleton and two types of one-dimensional channels. The framework of has excellent acid-alkali resistance and thermal stability, which is stable in a pH = 2-13 aqueous solution and an 260 °C air environment. In addition, the microporous copper MOF shows very high uptakes of CO (180 cm·g) and CH (113 cm·g) at 273 K and displays excellent adsorption selectivity for small molecular gases. The ideal adsorbed solution theory selectivity values for CH/CH, CO/CH, and CO/N are 2, 9, and 22 at 298 K, respectively. At the same time, breakthrough experiments for CO/CH, CO/N, and CH/CH were further conducted to verify the efficient separation performances.
通过亚铜（II）盐与双功能配体3-（1-1,2,4-三唑-1-基）间苯二甲酸的溶剂热反应，成功获得了一种多功能微孔金属有机框架（MOF）{[Cu(TIA)]·1.5CHOH}。单晶X射线衍射研究表明，其包含一个三维骨架和两种一维通道。该框架具有优异的耐酸碱性能和热稳定性，在pH = 2 - 13的水溶液和260°C的空气环境中均稳定。此外，这种微孔铜MOF在273 K时对CO（180 cm³·g⁻¹）和CH₄（113 cm³·g⁻¹）表现出非常高的吸附量，并且对小分子气体显示出优异的吸附选择性。在298 K时，CH₄/C₂H₄、CO/C₂H₄和CO/N₂的理想吸附溶液理论选择性值分别为2、9和22。同时，进一步进行了CO/C₂H₄、CO/N₂和CH₄/C₂H₄的突破实验，以验证其高效的分离性能。
