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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Recent progress in the synthesis of metal–organic frameworks
Yujia Sun,Hong-Cai Zhou +1 more
TL;DR: In this review, some current accomplishments of post-synthetic modification (PSM) based on covalent transformations and coordinative interactions as well as post-Synthetic exchange (PSE) in robust MOFs are provided.
Journal ArticleDOI
Hydrothermal synthesis of metal-polyphenol coordination crystals and their derived metal/N-doped carbon composites for oxygen electrocatalysis
Jing Wei,Yan Liang,Yaoxin Hu,Biao Kong,Jin Zhang,Qinfen Gu,Yuping Tong,Xianbiao Wang,San Ping Jiang,Huanting Wang +9 more
TL;DR: The metal (Co or Fe)-natural abundant polyphenol (tannin) coordination crystals are a renewable source for the fabrication of metal/carbon composites as a nonprecious-metal catalyst which show high catalytic performance for both oxygen reduction reaction and oxygen evolution reaction.
Journal ArticleDOI
Microporous Polyimides with Uniform Pores for Adsorption and Separation of CO2 Gas and Organic Vapors
Guiyang Li,Zhonggang Wang +1 more
TL;DR: In this paper, three microporous polyimides with uniform pore sizes were synthesized via one-pot polycondensation from tetrakis(4-aminophenyl)methane, tris-4-amphenyl)amine and 1,3,5-tris-tricornyl-benzene with pyromellitic dianhydride.
Journal ArticleDOI
Computational characterization and prediction of metal–organic framework properties
TL;DR: An overview of computational chemistry methods commonly used in the field of metal-organic frameworks (MOFs) to describe or predict the structures themselves and characterize their various properties, either at the quantum chemical level or through classical molecular simulation is given in this paper.
Journal ArticleDOI
Exceptional adsorption of arsenic by zirconium metal-organic frameworks: Engineering exploration and mechanism insight
Xingyu He,Fang Deng,Tingting Shen,Liming Yang,Dezhi Chen,Jianfeng Luo,Xubiao Luo,Xiaoye Min,Fang Wang +8 more
TL;DR: The advantages of nontoxicity, high stability, high As adsorption capacity, low-cost and easy availability confirm the highly promising application of zirconium metal-organic frameworks in As-contaminated wastewater remediation.
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.