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,benefitin...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.展开更多
基金supported financially by National Natural Science Foundation of China (No. U1904183)Science Foundation for Excellent Youth Scholars of Henan (212300410061, 20HASTIT006)
文摘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.
