Porous metal–organic frameworks with high stability and selective sorption for CO2 over N2
Porous metal–organic frameworks with high stability and selective sorption for CO2 over N2
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DOI：
10.1016/j.micromeso.2013.01.020
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发表时间：
2013-05
影响因子：
5.2
通讯作者：
C. Hou;Qing Liu;Peng Wang;Wei‐Yin Sun
中科院分区：
文献类型：
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作者：
C. Hou;Qing Liu;Peng Wang;Wei‐Yin Sun
以3，5-二（4-吡啶基）苯甲酸（HL）为原料，在溶剂热条件下与相应的金属盐反应，合成了两种新型金属有机骨架化合物{[Ni（L）2]·4 H2O}n（1）和{[Co（L）2]·4 H2O}n（2），并通过单晶和粉末X射线衍射、红外光谱、元素分析和热重分析对其进行了表征。1和2具有相同的2重互穿三维结构，具有ins拓扑结构，并且在去溶剂化时是多孔骨架。更重要的是，1和2的脱溶剂样品显示出高的热稳定性，H2O，MeOH或EtOH的蒸气吸附，和高焓的CO2吸附和高选择性CO2比N2在298 K，这意味着潜在的应用配位聚合物捕获和分离CO2。
Two new metal–organic frameworks {[Ni(L)2] ·4H2O}n(1) and {[Co(L)2]·4H2O}n(2) have been prepared by reactions of 3,5-di(pyridine-4-yl)benzoic acid (HL) with corresponding metal salt under solvothermal conditions, and characterized by single crystal and powder X-ray diffractions, IR, elemental and thermogravimetric analyses. 1 and 2 have the same 2-fold interpenetrating three-dimensional structure with ins topology and are porous frameworks upon desolvation. More importantly, the desolvated samples of 1 and 2 show high thermal stability, vapor adsorption of H2O, MeOH or EtOH, and high enthalpy for CO2adsorption and high selectivity for CO2over N2at 298K, implying the potential application of the coordination polymers for capture and separation of CO2.