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Functionalization of Metal-Organic Framework via Mixed-Ligand Strategy for Selective CO2 Sorption at Ambient Conditions

机译:通过混合配体策略在环境条件下选择性吸附CO2来实现金属有机框架的功能化

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摘要

A new three-dimensional Zn(II) metal-organic framework (MOF) of {[Zn-4(bpydb)(3)(datz)(2)(H2O)](DMF)(4)(EtOH)(5)(H2O)(8)}(n) (1, bpydbH(2) = 4,4'-(4,4'-bipyridine-2,6-diyl) dibenzoic acid, Hdatz = 3,5-diamino-1,2,4-triazole) with amino- and pyridine-functionalized pores has been successfully constructed under solvothermal conditions by using the mixed-ligand strategy, which consists of twisty 63 layers pillared by datz- ligands. The adsorption properties of this MOF were studied by CO2, N-2, and CH4 sorption measurements. Compared with the analogous 4,4'-bipyridine (bpy) pillared MOF {Zn(bpydb)(bpy)}(n) (2) we reported earlier, the activated 1 showed enhanced CO2 sorption capacity and good sorption selectivity for CO2 over N-2 and CH4 at room temperature.
机译:{[Zn-4(bpydb)(3)(datz)(2)(H2O)](DMF)(4)(EtOH)(5)的新型三维Zn(II)金属-有机骨架(MOF) (H2O)(8)}(n)(1,bpydbH(2)= 4,4'-(4,4'-联吡啶-2,6-二基)二苯甲酸,Hdatz = 3,5-二氨基-1,通过使用混合配体策略成功地在溶剂热条件下构建了具有氨基和吡啶官能化孔的2,4-三唑),该策略由datz-配体构成的扭曲的63层组成。通过CO2,N-2和CH4吸附测量研究了该MOF的吸附特性。与我们先前报道的类似的4,4'-联吡啶(bpy)柱状MOF {Zn(bpydb)(bpy)}(n)(2)相比,活化的1表现出增强的CO2吸附能力和对N2的良好CO2吸附选择性。 -2和CH4在室温下。

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