Metal鈥揙rganic Framework with Functional Amide Groups for Highly Selective Gas Separation

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• 作者：Shunshun Xiong ; Yabing He ; Rajamani Krishna ; Banglin Chen ; Zhiyong Wang
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：June 5, 2013
• 年：2013
• 卷：13
• 期：6
• 页码：2670-2674
• 全文大小：313K
• 年卷期：v.13,no.6(June 5, 2013)
• ISSN：1528-7505

文摘

A new three-dimensional microporous metal鈥搊rganic framework [Cu(N-(pyridin-4-yl)isonicotinamide)₂(SiF₆)](EtOH)₂(H₂O)₁₂ (UTSA-48, UTSA = University of Texas at San Antonio) with functional 鈭扖ONH鈥?groups on the pore surfaces was synthesized and structurally characterized. The small pores and the functional 鈭扖ONH鈥?groups on the pore surfaces within the activated UTSA-48a have enabled their strong interactions with C₂H₂ and CO₂ of adsorption enthalpy of 34.4 and 30.0 kJ mol^鈥?, respectively. Accordingly, activated UTSA-48 exhibits highly selective gas sorption of C₂H₂ and CO₂ over CH₄ with the Henry Law鈥檚 selectivities of 53.4 and 13.2 respectively, at 296 K, thereby, highlighting the promise for its application in industrially important gas separation.