Two Li–Zn Cluster-Based Metal–Organic Frameworks: Strong H2/CO2 Binding and High Selectivity to CO2

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• 作者：Yong-Liang Huang ; Di-Chang ZhongLong Jiang ; Yun-Nan Gong ; Tong-Bu Lu
• 刊名：Inorganic Chemistry
• 出版年：2017
• 出版时间：January 17, 2017
• 年：2017
• 卷：56
• 期：2
• 页码：705-708
• 全文大小：335K
• ISSN：1520-510X

文摘

Two metal–organic frameworks (MOFs) {(Me₂NH₂)[ZnLi(PTCA)(H₂O)]}_n·n{3DMF·C₄H₈O₂·4H₂O} (1) and {(Me₂NH₂)[ZnLi(PTCA)]}_n·n{3DMF·5H₂O} (2) have been constructed from Li–Zn clusters and pyrene-1,3,6,8-tetracarboxylic acid (H₄PTCA) under solvothermal conditions. Gas sorption measurements have revealed that the pore of desolvated 2 (2d) can strongly interact with H₂ and CO₂, with high H₂ and CO₂ adsorption heats of 15.3 and 51.9 kJ/mol, respectively. Furthermore, 2d can selectively adsorb CO₂ over N₂ and CH₄, with high adsorption selectivity of CO₂/N₂ and CO₂/CH₄.