Synthesis,Structures of 2D Coordination Layers Metal-Organic Frameworks with Highly Selective CO_(2)Uptake  

作　　者：Jingjing Jiang Yang Wang Dingsheng Wang Wenwei Zhang Yadong Li 

机构地区：[1]Department of Chemistry,Tsinghua University,Beijing,100084 China [2]State Key Laboratory of Coordination Chemistry,School of Chemistry and Chemical Engineering,Nanjing University,Nanjing,Jiangsu 210023,China

出　　处：《Chinese Journal of Chemistry》2021年第10期2789-2794,共6页中国化学（英文版）

基　　金：supported by the National Natural Science Foundation of China(21890383 and 21901135);the China Postdoctoral Science Foundation(2020M680536);the State Key Laboratory of Coordination Chemistry(SKLCC2106).

摘　　要：Main observation and conclusion By a strategy of fine-tuning of packing mode between the adjacent layers in a 2D net metal-organic frameworks(MOFs)through ligand changing,two 2D sql-type MOFs with highly selective CO_(2)uptake,CuHIN and CuHPB,were successfully synthesized.Compared with the precursor MOF-2,the fine-tuning structure of CuHIN shows selective adsorption of CO_(2)over N_(2)and CH_(4)with the CO_(2)uptake amounts as high as 4.7 wt%at 0.15 bar and at 298 K,and CO_(2)selectivity towards N_(2)and CH_(4)is 165.8 and 10.22 at 1 bar and at 298 K,respectively.In addition,for the 2D MOFs,the dynamic porous structure depends on the interaction of the adjacent layers.The suitable interaction is good for gliding smoothly and gas adsorption.

关 键 词：Metal-organic frameworks Ligand effects Selective adsorption C0_(2) C0_(2) N_(2) C0_(2) CH_(4) 

分 类 号：O641.4[理学—物理化学]