Journal ArticleDOI
Separation of rare gases and chiral molecules by selective binding in porous organic cages
Linjiang Chen,Paul S. Reiss,Samantha Y. Chong,Daniel Holden,Kim E. Jelfs,Tom Hasell,Marc A. Little,Adam Kewley,Michael E. Briggs,Andrew Stephenson,K. Mark Thomas,Jayne A. Armstrong,Jon G. Bell,Jose Busto,Raymond Noel,Jian Liu,Denis M. Strachan,Praveen K. Thallapally,Andrew I. Cooper +18 more
TLDR
It is shown that a porous organic cage molecule has unprecedented performance in the solid state for the separation of rare gases, such as krypton and xenon, and selective binding of chiral organic molecules such as 1-phenylethanol, suggesting applications in enantioselective separation.Abstract:
The separation of molecules with similar size and shape is an important technological challenge. For example, rare gases can pose either an economic opportunity or an environmental hazard and there is a need to separate these spherical molecules selectively at low concentrations in air. Likewise, chiral molecules are important building blocks for pharmaceuticals, but chiral enantiomers, by definition, have identical size and shape, and their separation can be challenging. Here we show that a porous organic cage molecule has unprecedented performance in the solid state for the separation of rare gases, such as krypton and xenon. The selectivity arises from a precise size match between the rare gas and the organic cage cavity, as predicted by molecular simulations. Breakthrough experiments demonstrate real practical potential for the separation of krypton, xenon and radon from air at concentrations of only a few parts per million. We also demonstrate selective binding of chiral organic molecules such as 1-phenylethanol, suggesting applications in enantioselective separation.read more
Citations
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Journal ArticleDOI
Function-led design of new porous materials
Anna G. Slater,Andrew I. Cooper +1 more
TL;DR: How each application will limit the materials that can be used, and also the size and connectivity of the pores required, are reviewed to compare and contrast a growing range of porous materials that are finding increasing use in academic and industrial applications.
Journal ArticleDOI
Gas/vapour separation using ultra-microporous metal-organic frameworks: insights into the structure/separation relationship.
Karim Adil,Youssef Belmabkhout,Renjith S. Pillai,Amandine Cadiau,Prashant M. Bhatt,Ayalew Hussen Assen Assen,Guillaume Maurin,Mohamed Eddaoudi +7 more
TL;DR: This tutorial review discusses the latest developments in ultra-microporous MOF adsorbents and their use as separating agents via thermodynamics and/or kinetics and molecular sieving, and suggests a plausible correlation between the inherent structural features/topology of MOFs and the associated gas/vapour separation performance.
Journal ArticleDOI
Metal-Organic Frameworks for Separation.
TL;DR: Some of the latest progress in the applications of MOFs for several key separation issues, with emphasis on newly synthesized MOF materials and the impact of their compositional and structural features on separation properties, are reviewed and highlighted.
Journal ArticleDOI
Porous organic cages: soluble, modular and molecular pores
Tom Hasell,Andrew I. Cooper +1 more
TL;DR: Porosity is a rare property for molecular materials but, surprisingly, porous solids built from discrete organic cage molecules have emerged as a versatile functional-materials platform as mentioned in this paper, and the surface areas of molecular organic cage solids now rival those of metal-organic frameworks.
Journal ArticleDOI
Metal-organic framework with optimally selective xenon adsorption and separation.
Debasis Banerjee,Cory M. Simon,Anna M. Plonka,Radha Kishan Motkuri,Jian Liu,Xianyin Chen,Berend Smit,Berend Smit,John B. Parise,John B. Parise,Maciej Haranczyk,Praveen K. Thallapally +11 more
TL;DR: A high-throughput computational screening of large databases of metal–organic frameworks is carried out and it is affirm that SBMOF-1 exhibits by far the highest reported xenon adsorption capacity and a remarkable Xe/Kr selectivity under conditions pertinent to nuclear fuel reprocessing.
References
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Journal ArticleDOI
Selective gas adsorption and separation in metal–organic frameworks
TL;DR: This critical review starts with a brief introduction to gas separation and purification based on selective adsorption, followed by a review of gas selective adsorbents in rigid and flexible MOFs, and primary relationships between adsorptive properties and framework features are analyzed.
Journal ArticleDOI
A homochiral metal-organic porous material for enantioselective separation and catalysis
TL;DR: The synthesis of a homochiral metal–organic porous material that allows the enantioselective inclusion of metal complexes in its pores and catalyses a transesterification reaction in an enantiOSElective manner is reported.
Journal ArticleDOI
Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) Coordination Sites
Eric D. Bloch,Wendy L. Queen,Wendy L. Queen,Rajamani Krishna,Joseph M. Zadrozny,Craig M. Brown,Craig M. Brown,Jeffrey R. Long,Jeffrey R. Long +8 more
TL;DR: In this paper, the metal-organic framework Fe2(dobdc) was demonstrated to exhibit excellent performance characteristics for separation of ethylene/ethane and propylene/propane mixtures at 318 kelvin.
Journal ArticleDOI
Radon in homes and risk of lung cancer: collaborative analysis of individual data from 13 European case-control studies.
Sarah C. Darby,D. Hill,Anssi Auvinen,Juan Miguel Barros-Dios,H. Baysson,Francesco Bochicchio,H. Deo,R. Falk,Francesco Forastiere,Matti Hakama,Iris M. Heid,Lothar Kreienbrock,Michaela Kreuzer,Frédéric Lagarde,Mäkeläinen I,Colin R. Muirhead,Willi Oberaigner,Göran Pershagen,Alberto Ruano-Ravina,E. Ruosteenoja,A. Schaffrath Rosario,Margot Tirmarche,Ladislav Tomasek,Elise Whitley,Heinz Erich Wichmann,Richard Doll +25 more
TL;DR: Collectively, though not separately, these studies show appreciable hazards from residential radon, particularly for smokers and recent ex-smokers, and indicate that it is responsible for about 2% of all deaths from cancer in Europe.
Journal ArticleDOI
Algorithms and tools for high-throughput geometry-based analysis of crystalline porous materials
Thomas Willems,Chris H. Rycroft,Chris H. Rycroft,Michael Kazi,Michael Kazi,Juan Meza,Maciej Haranczyk +6 more
TL;DR: Here, algorithms and tools to efficiently calculate some of the geometrical parameters describing pores are presented based on the Voronoi decomposition, which for a given arrangement of atoms in a periodic domain provides a graph representation of the void space.