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Mixed Matrix Membranes (MMMs) Comprising Exfoliated 2D Covalent Organic Frameworks (COFs) for Efficient CO2 Separation
Chemistry of Materials ( IF 7.2 ) Pub Date : 2016-02-17 00:00:00 , DOI: 10.1021/acs.chemmater.5b02902 Zixi Kang 1 , Yongwu Peng 1 , Yuhong Qian 1 , Daqiang Yuan 2 , Matthew A. Addicoat 3 , Thomas Heine 3 , Zhigang Hu 1 , Lincoln Tee 1 , Zhengang Guo 1 , Dan Zhao 1
Chemistry of Materials ( IF 7.2 ) Pub Date : 2016-02-17 00:00:00 , DOI: 10.1021/acs.chemmater.5b02902 Zixi Kang 1 , Yongwu Peng 1 , Yuhong Qian 1 , Daqiang Yuan 2 , Matthew A. Addicoat 3 , Thomas Heine 3 , Zhigang Hu 1 , Lincoln Tee 1 , Zhengang Guo 1 , Dan Zhao 1
Affiliation
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Two water-stable covalent organic frameworks (COFs) named NUS-2 and NUS-3 having two-dimensional (2D) layered structures with different pore sizes were synthesized. These COFs were exfoliated into nanosheets and even monolayers with high aspect ratio. They were subsequently blended with commercial polymers poly(ether imide) (Ultem) or polybenzimidazole (PBI) into mixed matrix membranes (MMMs) exhibiting highly homogeneous textures due to the excellent compatibility between COF fillers and polymer matrixes. Thanks to the selective gas sorption properties of the porous COF fillers, the prepared MMMs exhibited increased gas permeabilities with [email protected] demonstrating an excellent H2/CO2 permselectivity that exceeded the 2008 Robeson upper bound. Our approach of using exfoliated 2D COFs as porous fillers in MMMs paves a novel way toward the tailored synthesis of advanced composite membrane materials for clean energy and environmental sustainability.
中文翻译：
包含脱落的2D共价有机骨架（COF）的混合基质膜（MMM），可实现高效的CO 2分离
合成了两个具有不同孔径的二维（2D）层状结构的水稳定的共价有机骨架（COF），分别称为NUS-2和NUS-3。这些COF被剥落成纳米片，甚至具有高长宽比的单层。随后将它们与市售聚合物聚醚酰亚胺（Ultem）或聚苯并咪唑（PBI）混合成混合基质膜（MMM），由于COF填料和聚合物基质之间的优异相容性，它们表现出高度均质的质地。由于多孔COF填料具有选择性的气体吸附特性，因此制得的MMM表现出更高的气体渗透性，并且[电子邮件保护]表现出出色的H 2 / CO 2渗透选择性超过了2008年Robeson上限。我们在MMM中使用剥落的2D COF作为多孔填料的方法为定制合成高级复合膜材料以实现清洁能源和环境可持续性的新颖方法铺平了道路。
更新日期：2016-02-17
中文翻译：
包含脱落的2D共价有机骨架（COF）的混合基质膜（MMM），可实现高效的CO 2分离
合成了两个具有不同孔径的二维（2D）层状结构的水稳定的共价有机骨架（COF），分别称为NUS-2和NUS-3。这些COF被剥落成纳米片，甚至具有高长宽比的单层。随后将它们与市售聚合物聚醚酰亚胺（Ultem）或聚苯并咪唑（PBI）混合成混合基质膜（MMM），由于COF填料和聚合物基质之间的优异相容性，它们表现出高度均质的质地。由于多孔COF填料具有选择性的气体吸附特性，因此制得的MMM表现出更高的气体渗透性，并且[电子邮件保护]表现出出色的H 2 / CO 2渗透选择性超过了2008年Robeson上限。我们在MMM中使用剥落的2D COF作为多孔填料的方法为定制合成高级复合膜材料以实现清洁能源和环境可持续性的新颖方法铺平了道路。
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