Journal ArticleDOI
Selective gas adsorption and separation in metal–organic frameworks
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-adeninate vertices for the construction of an exceptionally porous metal-organic framework
TL;DR: This work presents a promising alternative strategy for constructing mesoporous metal-organic frameworks that addresses the size of the vertex rather than the length of the organic linker, and uses large metal-biomolecule clusters, in particular zinc-adeninate building units, as vertices to construct bio-MOF-100, an exclusively mesoporus metal- organic framework.
Journal ArticleDOI
Hybrid zeolitic imidazolate frameworks with catalytically active TO4 building blocks.
TL;DR: This work was seeking to integrate compositional and structural features of zeolites and ZIFs by combining TO4 tetrahedra with zinc–imidazolate units, which presents a new class of porous materials filling the gap between zeolite-like structures and Zifs.
Journal ArticleDOI
A robust near infrared luminescent ytterbium metal–organic framework for sensing of small molecules
Zhiyong Guo,Hui Xu,Shengqun Su,Jianfeng Cai,Song Dang,Shengchang Xiang,Guodong Qian,Hongjie Zhang,Michael O'Keeffe,Banglin Chen +9 more
TL;DR: The first near-infrared luminescent ytterbium metal-organic framework has been realized for the highly selective and sensitive sensing of small molecules.
Journal ArticleDOI
Water-stable metal-organic frameworks for aqueous removal of heavy metals and radionuclides: A review.
TL;DR: A systematical review on the current status of water-stable MOFs that capture and convert a wide range of heavy metal ions and radionuclides in aqueous solution and shows high selectivity in capturing target metal ions even in the presence of multiple water constituents.
Journal ArticleDOI
Metal-Organic Frameworks for Chemiresistive Sensors
TL;DR: A comprehensive overview and recent progress in chemiresistive sensors developed by using pure metal-organic frameworks (MOFs), MOF membranes, and MOF derivatives can be found in this article.
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.
Journal ArticleDOI
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.