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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Journal ArticleDOI
Perspective of microporous metal–organic frameworks for CO2 capture and separation
TL;DR: In this article, the authors provide an overview of the current status of the emerging microporous metal-organic frameworks (MOFs) for the storage and separation of carbon dioxide, and summarize the main factors for CO2 capture performance of MOF materials under different working conditions, in comparison with those for zeolite materials.
Journal ArticleDOI
Light-Harvesting Metal–Organic Frameworks (MOFs): Efficient Strut-to-Strut Energy Transfer in Bodipy and Porphyrin-Based MOFs
TL;DR: A pillared-paddlewheel type metal-organic framework material featuring bodipy- and porphyrin-based struts, and capable of harvesting light across the entire visible spectrum, has been synthesized.
Journal ArticleDOI
Beyond post-synthesis modification: evolution of metal–organic frameworks via building block replacement
Pravas Deria,Joseph E. Mondloch,Olga Karagiaridi,Wojciech Bury,Wojciech Bury,Joseph T. Hupp,Omar K. Farha,Omar K. Farha +7 more
TL;DR: The influence of building block replacement on the stability and properties of MOFs will be discussed, and some insights into their mechanistic aspects are provided.
Journal ArticleDOI
A review on g-C3N4 for photocatalytic water splitting and CO2 reduction
TL;DR: In this article, the authors summarized the most current advances on novel design idea and new synthesis strategy for g-C 3 N 4 preparation, insightful ideas on extending optical absorption of pristine G-C3 N 4, overall water splitting and CO 2 photoreduction over g-c 3N 4 based systems.
Journal ArticleDOI
Fe-Based MOFs for Photocatalytic CO2 Reduction: Role of Coordination Unsaturated Sites and Dual Excitation Pathways
TL;DR: In this paper, a series of earth-abundant Fe-containing MOFs (MIL-101(Fe), MIL-53(Fe) and MIL-88B(Fe)) showed photocatalytic activity for CO2 reduction to give formate under visible light irradiation.
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.