A Polyhedron-based Metal-Organic Framework showing high CO2 Adsorption Capacity
A Polyhedron-based Metal-Organic Framework showing high CO2 Adsorption Capacity
复制标题
具有高二氧化碳吸附能力的多面体金属有机框架
DOI：
10.1002/zaac.201800224
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发表时间：
2018
影响因子：
1.4
通讯作者：
Gao Cong-Li
中科院分区：
文献类型：
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作者：
Gao Cong-Li
通过双功能有机连接体5 ′-（4-（4H-1，2，4-三唑-4-基）苯基）-[1，1 ′：3 ′，1 ′ ′-三联苯]-4，4 ′ ′-二甲酸（H2TTDA）和双核铜团簇的结合，设计并合成了一种新型多孔铜基金属有机骨架{[Cu2（TTDA）2]*（DMA）7} n（1）（DMA = N，N-二甲基乙酰胺）.该MOF通过元素分析、粉末X射线衍射（PXRD）、热重分析（TGA）和单晶X射线衍射来表征。该框架由两种类型的笼（八面体笼和立方八面体笼）构成，并沿晶轴显示出两种类型的圆形通道，其尺寸约为沿着晶轴的5.8和11.4 μ m。气体吸附实验表明，该材料具有较大的比表面积（1687 m2·g-1）和较高的CO2吸附容量（273 K和298 K时分别为172 cm3·g-1和124 cm3·g-1）.
A novel porous copper‐based metal‐organic framework {[Cu2(TTDA)2]*(DMA)7}n(1) (DMA =N,N‐dimethylacetamide) was designed and synthesized via the combination of a dual‐functional organic linker 5′‐(4‐(4H‐1,2,4‐triazol‐4‐yl)phenyl)‐[1,1′:3′,1′′‐terphenyl]‐4,4′′‐dicarboxylic acid (H2TTDA) and a dinuclear CuIIpaddle‐wheel cluster. This MOF is characterized by elemental analysis, powder X‐ray diffraction (PXRD), thermo gravimetric analysis (TGA), and single‐crystal X‐ray diffraction. The framework is constructed from two types of cages (octahedral and cuboctahedral cages) and exhibits two types of circular‐shaped channels of approximate size of 5.8 and 11.4 Å along the crystallographiccaxis. The gas sorption experiments indicate that it possesses a large surface area (1687 m2·g–1) and high CO2adsorption capacities around room temperature (up to 172 cm3·g–1at 273 K and 124 cm3·g–1at 298 K).