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Pore-surface engineering in metal-organic frameworks (MOFs) and metal-organic gels (MOGs) with urea-functionalized ligands for H-bond controlled gas and liquid phase separations

具有脲官能化配体的金属有机框架（MOF）和金属有机凝胶（MOG）中的孔表面工程，用于氢键控制的气相和液相分离

基本信息

批准号：
246578769
负责人：
Professor Dr. Christoph Janiak
金额：
--
依托单位：
Lehrstuhl für nanoporöse und nanoskalierte Materialien
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2013
资助国家：
德国
起止时间：
2012-12-31 至 2016-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/246578769?language=en
关键词：
Pore surface engineering metal organic

项目摘要

The general goal of the project is the synthesis of new mixed-matrix membranes (MMMs) with urea-ligand containing metal-organic frameworks (MOFs) or metal-organic gels (MOGs) for gas and liquid separations. The focus lies on the selective separation of gases or anions through H-bonding interactions. The target MOFs and MOGs which utilize the novel urea-functionalized ligands will be tested and embedded into polysulfone (PSF, PSU), Matrimid® and other polyimides, polyvinylene difluoride (PVDF) polymers for the synthesis of MOF- and MOG-MMMs.It is anticipated that the synthesized nanoporous urea-MOFs and urea-MOGs will selectively adsorb H-bond acceptor/donor species due to the hydrogen donor/acceptor character of the urea-functionalized ligands. Consequently, urea-MOF- and urea-MOG-MMMs should show a high selectivity for the separation of gases or anions with H-donor/acceptor functions.The urea-MOF- and urea-MOG-MMMs will be investigated for their gas- and anion-separation performance by gas permeation, pervaporation and reverse osmosis (RO). The separation performance will be determined by using single gases (isochoric, yielding ideal selectivities), gas mixtures as well as with gas solutions SO2, NH3, H2S in water or organic solvents (pervaporation) and with fluoride salt solutions (RO). The expected progress beyond the state of the art is seen in (A) the synthesis of nanoporous MOFs and MOGs bearing urea-functional organic sites; (B) new nanoporous MOFs and MOGs, bearing urea-functional organic sites, which will be suitable for the sorption/storage of small reactive molecules and/or harmful gases (NOx, SOx, NH3/amines and H2S/thiols); and (C) new functionalized MOFs, MOGs and MOF-/MOG-MMMs for gas and liquid separation applications.

该项目的总体目标是合成用于气体和液体分离的具有含脲配体的金属有机框架（MOF）或金属有机凝胶（MOG）的新型混合基质膜（MMM）。重点在于通过氢键相互作用选择性分离气体或阴离子。利用新型脲官能化配体的目标MOFs和MOGs将被测试并嵌入聚砜中（PSF、PSU）、Matrimid®和其他聚酰亚胺，预期合成的纳米多孔脲-M0 F和脲-M0 G将由于脲-M0 G的氢供体/受体特性而选择性地吸附H-键受体/供体物质。功能化配体。因此，脲-MOF-和脲-MOG-MMM应该显示出对具有H-给体/受体功能的气体或阴离子的高选择性。脲-MOF-和脲-MOG-MMM将通过气体渗透、渗透蒸发和反渗透（RO）来研究其气体和阴离子分离性能。分离性能将通过使用单一气体（等容的，产生理想的选择性）、气体混合物以及SO2、NH3、H2S在水或有机溶剂中的气体溶液（渗透蒸发）和氟化物盐溶液（RO）来确定。超出现有技术的预期进展可见于（A）带有脲官能有机位点的纳米多孔MOF和MOG的合成;（B）带有脲官能有机位点的新的纳米多孔MOF和MOG，其将适用于吸附/储存小的反应性分子和/或有害气体（C）用于气体和液体分离应用的新型官能化的MOF、MOG和MOF-/MOG-MMM。