Journal ArticleDOI
Selective gas adsorption and separation in metal–organic frameworks
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TLDR
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.Abstract:
Adsorptive separation is very important in industry. Generally, the process uses porous solid materials such as zeolites, activated carbons, or silica gels as adsorbents. With an ever increasing need for a more efficient, energy-saving, and environmentally benign procedure for gas separation, adsorbents with tailored structures and tunable surface properties must be found. Metal–organic frameworks (MOFs), constructed by metal-containing nodes connected by organic bridges, are such a new type of porous materials. They are promising candidates as adsorbents for gas separations due to their large surface areas, adjustable pore sizes and controllable properties, as well as acceptable thermal stability. This critical review starts with a brief introduction to gas separation and purification based on selective adsorption, followed by a review of gas selective adsorption in rigid and flexible MOFs. Based on possible mechanisms, selective adsorptions observed in MOFs are classified, and primary relationships between adsorption properties and framework features are analyzed. As a specific example of tailor-made MOFs, mesh-adjustable molecular sieves are emphasized and the underlying working mechanism elucidated. In addition to the experimental aspect, theoretical investigations from adsorption equilibrium to diffusion dynamics via molecular simulations are also briefly reviewed. Furthermore, gas separations in MOFs, including the molecular sieving effect, kinetic separation, the quantum sieving effect for H2/D2 separation, and MOF-based membranes are also summarized (227 references).read more
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Metal–Organic Frameworks for Analytical Chemistry: From Sample Collection to Chromatographic Separation
TL;DR: This Account summarizes the research on the analytical applications of MOFs ranging from sampling to chromatographic separation, and develops an in situ hydrothermal growth approach to fabricate thin films of MOF-199 on etched stainless steel wire for solid-phase microextraction of volatile benzene homologues with large enhancement factors and wide linearity.
Journal ArticleDOI
Rigid Pillars and Double Walls in a Porous Metal-Organic Framework: Single-Crystal to Single-Crystal, Controlled Uptake and Release of Iodine and Electrical Conductivity
Ming-Hua Zeng,Qiang-Xin Wang,Yan-Xi Tan,Sheng Hu,Hai-Xia Zhao,La-Sheng Long,Mohamedally Kurmoo +6 more
TL;DR: A highly stable pillared and double-walled zinc(II) metal-organic framework with regular nanochannels displays single-crystal to single-Crystal transformation upon desolvation and a large quantity of iodine uptake, controlled release, and electrical conductivity elevation due to synergy between the iodine guests and the host framework.
Journal ArticleDOI
Abatement of various types of VOCs by adsorption/catalytic oxidation: A review
TL;DR: In this article, the development of efficient adsorbents and catalysts for VOCs with varied nature are discussed, and the perspectives on the potential future directions of the adsorptive removal and catalytic oxidation of VOC are given.
Journal ArticleDOI
Postsynthetic Tuning of Metal–Organic Frameworks for Targeted Applications
Timur Islamoglu,Subhadip Goswami,Zhanyong Li,Ashlee J. Howarth,Omar K. Farha,Omar K. Farha,Joseph T. Hupp +6 more
TL;DR: The techniques include methods for functionalizing MOF nodes as well as a method to replace structural linkers, termed solvent-assisted linker exchange (SALE), also known as postsynthethic exchange (PSE), which is particularly useful when incorporation of particular chemical functionalities via direct synthesis is challenging or impossible.
Journal ArticleDOI
Why hybrid porous solids capture greenhouse gases
Gérard Férey,Christian Serre,Thomas Devic,Guillaume Maurin,Hervé Jobic,Philip L. Llewellyn,Guy De Weireld,Alexandre Vimont,Marco Daturi,Jong-San Chang +9 more
TL;DR: This tutorial review proposes answers to open questions in adsorption and storage of greenhouse gases with a special emphasis on CO(2) and CH(4) storage by some rigid and flexible hybrid porous materials.
References
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Journal ArticleDOI
Functional porous coordination polymers.
TL;DR: The aim is to present the state of the art chemistry and physics of and in the micropores of porous coordination polymers, and the next generation of porous functions based on dynamic crystal transformations caused by guest molecules or physical stimuli.
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Reticular synthesis and the design of new materials
Omar M. Yaghi,Michael O'Keeffe,Nathan W. Ockwig,Hee K. Chae,Hee K. Chae,Mohamed Eddaoudi,Jaheon Kim +6 more
TL;DR: This work has shown that highly porous frameworks held together by strong metal–oxygen–carbon bonds and with exceptionally large surface area and capacity for gas storage have been prepared and their pore metrics systematically varied and functionalized.
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Design and synthesis of an exceptionally stable and highly porous metal-organic framework
TL;DR: In this article, an organic dicarboxylate linker is used in a reaction that gives supertetrahedron clusters when capped with monocarboxyates.
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From molecules to crystal engineering: supramolecular isomerism and polymorphism in network solids.
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Hybrid porous solids: past, present, future
TL;DR: The state-of-the-art on hybrid porous solids, their advantages, their new routes of synthesis, the structural concepts useful for their 'design', aiming at reaching very large pores are presented.