A flexible metal-organic framework with double interpenetration for highly selective CO2 capture at room temperature

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• 作者：Bin Li ; Banglin Chen
• 刊名：SCIENCE CHINA Chemistry
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：59
• 期：8
• 页码：965-969
• 全文大小：677 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chinese Library of Science
  Chemistry
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1870
• 卷排序：59

文摘

A flexible metal-organic framework of 1a Cu(FMA)(4,4′-Bpe)_0.5 (FMA=fumarate; 4,4′-Bpe=trans-bis-(4-pyridyl)ethylene) that exhibits guest molecule-controlled gate-opening adsorption has been reported, in which the flexible pores can be enlarged by CO₂ molecules rather than CH₄ and N₂ under a certain gate-opening pressure. The CO₂ uptake can be sharply improved from 6.85 cm3 g–1 at 0.60 atm to 33.7 cm3 g–1 at 1 atm due to the gate-opening effect, thus resulting in the notably enhanced adsorption selectivities for CO₂/CH₄ (32:1, v/v) and CO₂/N₂ (48:1, v/v) separations at room temperature.Keywordsmetal-organic frameworkflexibleCO₂ captureselectivitygate-opening effect