气候变化领域集成服务门户(CCPortal): Highly selective gas separation membrane using in situ amorphised metal-organic frameworks

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DOI	10.1039/c7ee01872j
	Highly selective gas separation membrane using in situ amorphised metal-organic frameworks
	Kertik A.; Wee L.H.; Pfannmöller M.; Bals S.; Martens J.A.; Vankelecom I.F.J.
发表日期	2017
ISSN	17545692
起始页码	2342
结束页码	2351
卷号	10 期号:11
英文摘要	Conventional carbon dioxide (CO2) separation in the petrochemical industry via cryogenic distillation is energy intensive and environmentally unfriendly. Alternatively, polymer membrane-based separations are of significant interest owing to low production cost, low-energy consumption and ease of upscaling. However, the implementation of commercial polymeric membranes is limited by their permeability and selectivity trade-off and the insufficient thermal and chemical stability. Herein, a novel type of amorphous mixed matrix membrane (MMM) able to separate CO2/CH4 mixtures with the highest selectivities ever reported for MOF based MMMs is presented. The MMM consists of an amorphised metal-organic framework (MOF) dispersed in an oxidatively cross-linked matrix achieved by fine tuning of the thermal treatment temperature in air up to 350 °C which drastically boosts the separation properties of the MMM. Thanks to the protection of the surrounding polymer, full oxidation of this MOF (i.e. ZIF-8) is prevented, and amorphisation of the MOF is realized instead, thus in situ creating a molecular sieve network. In addition, the treatment also improves the filler-polymer adhesion and induces an oxidative cross-linking of the polyimide matrix, resulting in MMMs with increased stability or plasticization resistance at high pressure up to 40 bar, marking a new milestone as new molecular sieve MOF MMMs for challenging natural gas purification applications. A new field for the use of amorphised MOFs and a variety of separation opportunities for such MMMs are thus opened. © The Royal Society of Chemistry 2017.
英文关键词	Air purification; Carbon; Carbon dioxide; Chemical stability; Crosslinking; Crystalline materials; Distillation; Economic and social effects; Energy utilization; Filled polymers; Molecular sieves; Organic polymers; Organometallics; Polymers; Separation; Sieves; Cryogenic distillations; Gas separation membrane; Low energy consumption; Metal organic framework; Mixed matrix membranes; Petrochemical industry; Thermal and chemical stabilities; Thermal treatment temperature; Gas permeable membranes; adhesion; carbon dioxide; high pressure; membrane; metal; natural gas; organic compound; oxidation; permeability; petrochemical industry; polymer; purification; separation
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190385
作者单位	Centre for Surface Chemistry and Catalysis, University of Leuven, Celestijnenlaan 200f, Heverlee, Leuven, B3001, Belgium; Electron Microscopy for Materials Science, University of Antwerp, Groenenborgerlaan 171, Antwerp, B2020, Belgium
推荐引用方式 GB/T 7714	Kertik A.,Wee L.H.,Pfannmöller M.,et al. Highly selective gas separation membrane using in situ amorphised metal-organic frameworks[J],2017,10(11).
APA	Kertik A.,Wee L.H.,Pfannmöller M.,Bals S.,Martens J.A.,&Vankelecom I.F.J..(2017).Highly selective gas separation membrane using in situ amorphised metal-organic frameworks.Energy & Environmental Science,10(11).
MLA	Kertik A.,et al."Highly selective gas separation membrane using in situ amorphised metal-organic frameworks".Energy & Environmental Science 10.11(2017).