A Robust Heterometallic Cd(Ⅱ)/Ba(Ⅱ)-Organic Framework with Exposed Amino Group and Active Sites Exhibiting Excellent CO_(2)/CH4 and C_(2)H_(2)/CH_(4) Separation  

作　　者：FU Hong-Ru JIANG Yu-Ying LUO Jia-Hua LI Ting 傅红如;蒋玉莹;罗家华;李婷(College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang 471934,China;College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China)

机构地区：[1]College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang 471934,China [2]College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China

出　　处：《Chinese Journal of Structural Chemistry》2022年第3期287-292,I0015,共7页结构化学（英文）

基　　金：supported financially by National Natural Science Foundation of China (No. U1904183);Science Foundation for Excellent Youth Scholars of Henan (212300410061, 20HASTIT006)

摘　　要：A microporous and robust bimetal-organic framework[Cd_(2)Ba(NH_(2)-BTB)_(2)]·2(DMA)·2(H_(2)O)(1)was constructed by mixing the heterometallic nodes and an tridentate carboxyl ligand with amino group,benefiting from the synergistic effect of active sites,exposed amino groups and ultramicroporous structure.This compound displays an extraordinary selectivity of CO_(2)/CH4 and C_(2)H_(2)/CH_(4)(16.7 and 146.3)at 298 K and 1 atm,which can exceed those of many reported MOFs under the same conditions.This work provides an important model to design metal-organic frameworks for the adsorption and separation of small gas molecules.

关 键 词：heterometallic-organic framework C2H2/CH4 separation exposed sites 

分 类 号：TE644[石油与天然气工程—油气加工工程] O641.4[理学—物理化学]