Modulation of Gas Sorption Properties through Cation Exchange within an Anionic Metal-Organic Framework
作者:Yong-Liang Huang、Long Jiang、Tong-Bu Lu
DOI:10.1002/cplu.201600121
日期:2016.8
3D anionic metal-organic framework (MOF) of (Me2 NH2 )4 [Ni8 (PTCA)4 (μ3 -OH)4 (H2 O)4 ](DMF)5 (H2 O)13 (H4 PTCA=pyrene-1,3,6,8-tetracarboxylic acid) has been synthesized, in which Me2 NH2 + can be exchanged by Li+ ions. The results of gas sorption measurements indicate that the desolvated MOFs both before and after Li+ exchange show highly selective adsorption for CO2 over CH4 and N2 gases, and the
(Me2 NH2)4 [Ni8(PTCA)4(μ3-OH)4(H2 O)4](DMF)5(H2 O)13(H4 PTCA = pyrenene-已经合成了1,3,6,8-四羧酸),其中Me2 NH2 +可以被Li +离子交换。气体吸附测量的结果表明,在Li +交换之前和之后,去溶剂化的MOF对CH4和N2气体均显示出对CO2的高度选择性吸附,并且与Li +交换的MOF表现出增强的CO2,CH4和H2储存特性。