Tetrazole–Viologen-based Flexible Microporous Metal–Organic Framework with High CO2 Selective Uptake

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• 作者：Ya-Ping Zhao ; Yan Li ; Cai-Yan Cui ; Yu Xiao ; Rong Li ; Shuai-Hua Wang ; Fa-Kun Zheng ; Guo-Cong Guo
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：August 1, 2016
• 年：2016
• 卷：55
• 期：15
• 页码：7335-7340
• 全文大小：440K
• 年卷期：0
• ISSN：1520-510X

文摘

A flexible metal–organic framework (FMOF) with functionalized pores was hydrothermally synthesized to improve CO₂ affinity and selectivity. The obtained FMOF exhibits a reversible shrinking and swelling framework transformation, which is triggered by the adsorption of CO₂ rather than by the adsorption of N₂ and CH₄. At ambient temperature and an atmospheric pressure, this FMOF shows not only a high CO₂ uptake (98 cm³ g^–1, 19.3 wt %) but also a good calculated adsorption selectivity for CO₂ over both CH₄ and N₂ (CO₂/CH₄ 50:50 v/v: 28.6:1, CO₂/N₂ 15:85 v/v: 210.4:1 calculated by ideal adsorbed solution theory), indicating potential applications in the purification of natural gas and industrial flue gas.