The high porosity,excellent water stability and optimized supramolecular host–vip interactions of MOFs are the three key factors for their potential practical applications in many important areas including gas stor...The high porosity,excellent water stability and optimized supramolecular host–vip interactions of MOFs are the three key factors for their potential practical applications in many important areas including gas storage/separation,catalysis and so on.In this study,we designed and constructed a highly porous(3,36)-connected txt-type acylamide-functionalized metal–organic framework(HNUST-8)from a pyridine-based acylamide-linking diisophthalate and dicopper(II)-paddlewheel clusters.展开更多
The design and synthesis of highly porous MOFs with excellent framework stability and optimized supramolecular host-vip interactions is an effective strategy to obtain high-performance MOF materials for targeted app...The design and synthesis of highly porous MOFs with excellent framework stability and optimized supramolecular host-vip interactions is an effective strategy to obtain high-performance MOF materials for targeted applications such as gas storage,separation,catalysis and so on.Herein,we designed and constructed a microporous(3,24)-connected rht-type acylamide functionalized MOF(HNUST-9)from dicopper(II)-paddlewheel clusters and a novel C_(2)-symmetric acylamide-linking hexacarboxylate.Interestingly,with a high density of strong CO_(2) binding sites including open copper(II)sites and acylamide groups integrated in the framework,although exhibiting moderate porosity(a BET surface area of 2429 m^(2) g^(−1)),the activated HNUST-9 shows an exceptionally high excess CO_(2) uptake capacity(21.8 mmol g^(−1) at 25 bar and 273 K),and efficient CO_(2) separation ability from CO_(2)/CH4 and CO_(2)/N_(2) binary gas mixtures under dynamic conditions at 1 bar and room temperature.Moreover,HNUST-9 demonstrates efficient catalytic activity for the CO_(2) cycloaddition with various epoxides in the presence of tetrabutylammonium bromide as the cocatalyst under mild,solvent-free conditions.展开更多
There has been no reports on the study of the ternary systems constituted by KCI solvent, acylamides and water, except that of FA （formamide）. In this note, the solubilities and physical properties of the liquid pha...There has been no reports on the study of the ternary systems constituted by KCI solvent, acylamides and water, except that of FA （formamide）. In this note, the solubilities and physical properties of the liquid phase of the ternary systems, KCI-H<sub>2</sub>O-DMF (N,展开更多
基金supported by the National Natural Science Foundation of China(Grant No.21401055,21371150 and 21201062)Hunan Provincial Natural Science Foundation of China(Grant No.2018JJ2113 and 2017JJ2095)State Key Laboratory of Coordination Chemistry(Grant No.SKLCC1417).
文摘The high porosity,excellent water stability and optimized supramolecular host–vip interactions of MOFs are the three key factors for their potential practical applications in many important areas including gas storage/separation,catalysis and so on.In this study,we designed and constructed a highly porous(3,36)-connected txt-type acylamide-functionalized metal–organic framework(HNUST-8)from a pyridine-based acylamide-linking diisophthalate and dicopper(II)-paddlewheel clusters.
基金supported by the National Natural Science Foundation of China(Grant No.21973029 and 21401055)the Hunan Provincial Natural Science Foundation of China(Grant No.2018JJ2113 and 2017JJ2095)the Scientific Research Fund of Hunan Provincial Education Department(Grant No.19A178).
文摘The design and synthesis of highly porous MOFs with excellent framework stability and optimized supramolecular host-vip interactions is an effective strategy to obtain high-performance MOF materials for targeted applications such as gas storage,separation,catalysis and so on.Herein,we designed and constructed a microporous(3,24)-connected rht-type acylamide functionalized MOF(HNUST-9)from dicopper(II)-paddlewheel clusters and a novel C_(2)-symmetric acylamide-linking hexacarboxylate.Interestingly,with a high density of strong CO_(2) binding sites including open copper(II)sites and acylamide groups integrated in the framework,although exhibiting moderate porosity(a BET surface area of 2429 m^(2) g^(−1)),the activated HNUST-9 shows an exceptionally high excess CO_(2) uptake capacity(21.8 mmol g^(−1) at 25 bar and 273 K),and efficient CO_(2) separation ability from CO_(2)/CH4 and CO_(2)/N_(2) binary gas mixtures under dynamic conditions at 1 bar and room temperature.Moreover,HNUST-9 demonstrates efficient catalytic activity for the CO_(2) cycloaddition with various epoxides in the presence of tetrabutylammonium bromide as the cocatalyst under mild,solvent-free conditions.
文摘There has been no reports on the study of the ternary systems constituted by KCI solvent, acylamides and water, except that of FA （formamide）. In this note, the solubilities and physical properties of the liquid phase of the ternary systems, KCI-H<sub>2</sub>O-DMF (N,
