Metal-Organic Framework with Functional Amide Groups for Highly Selective Gas Separation
Metal-Organic Framework with Functional Amide Groups for Highly Selective Gas Separation
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具有功能性酰胺基团的金属有机框架用于高选择性气体分离
DOI：
10.1021/cg4004438
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发表时间：
2013-06-01
影响因子：
3.8
通讯作者：
Wang, Zhiyong
中科院分区：
文献类型：
--
作者：
Xiong, Shunshun;He, Yabing;Wang, Zhiyong
合成了孔表面带有官能团的新型三维微孔金属有机骨架[Cu(N-pyridin-4-yl)isonicotinamide)(2)(SiF6)(EtOH)(2)(H2O)(12)(UTSA48，UTSA=德克萨斯大学圣安东尼奥分校)，并对其结构进行了表征。活化后的UTSA-48a中的小孔和孔表面的官能团使其与C2H2和CO2发生了较强的相互作用，其吸附热分别为34.4和30.0kJ·mol(-1)。相应地，活化的UTSA-48在CH4上表现出对C2H2和CO2的高选择性气体吸附，在296K时，亨利定律的选择性分别为53.4和13.2，从而突出了其在工业上重要的气体分离中的应用前景。
A new three-dimensional microporous metal-organic framework [Cu(N-pyridin-4-yl)isonicotinamide)(2)(SiF6)(EtOH)(2)(H2O)(12) (UTSA-48, UTSA = University of Texas at San Antonio) with functional -CONH- groups on the pore surfaces was synthesized and structurally characterized. The small pores and the functional -CONH- groups on the pore surfaces within the activated UTSA-48a have enabled their strong interactions with C2H2 and CO2 of adsorption enthalpy of 34.4 and 30.0 kJ mol(-1), respectively. Accordingly, activated UTSA-48 exhibits highly selective gas sorption of C2H2 and CO2 over CH4 with the Henry Law's selectivities of 53.4 and 13.2 respectively, at 296 K, thereby, highlighting the promise for its application in industrially important gas separation.