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

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• 作者：Di-Ming Chen ; Na Xu ; Xiao-Hang Qiu ; Peng Cheng
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：February 4, 2015
• 年：2015
• 卷：15
• 期：2
• 页码：961-965
• 全文大小：426K
• ISSN：1528-7505

文摘

A new three-dimensional Zn(II) metal鈥搊rganic framework (MOF) of {[Zn₄(bpydb)₃(datz)₂(H₂O)](DMF)₄(EtOH)₅(H₂O)₈}_n (1, bpydbH₂ = 4,4鈥?(4,4鈥?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^{鈥?/sup> ligands. The adsorption properties of this MOF were studied by CO₂, N₂, and CH₄ sorption measurements. Compared with the analogous 4,4鈥?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 N₂ and CH₄ at room temperature.}