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
Citations
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Highly hydrogen permselective ZIF-8 membranes supported on polydopamine functionalized macroporous stainless-steel-nets
TL;DR: Inspired by the bio-adhesive ability of the marine mussel, highly hydrogen permselective ZIF-8 membranes were prepared on polydopamine functionalized stainless-steel-nets (SSNs) as mentioned in this paper.
Journal ArticleDOI
A bimodal anionic MOF: turn-off sensing of CuII and specific sensitization of EuIII
Sohini Bhattacharyya,Anindita Chakraborty,Kolleboyina Jayaramulu,Arpan Hazra,Tapas Kumar Maji +4 more
TL;DR: Through cation exchange, 1 manifests bimodal functionality, being a turn-off sensor of Cu(II) on one hand, and a selective sensitizer of Eu(III) emitting intense pure red emission on the other.
Journal ArticleDOI
A dual-walled cage MOF as an efficient heterogeneous catalyst for the conversion of CO2 under mild and co-catalyst free conditions†
TL;DR: In this article, a 3D → 3D interpenetrated Zn-polyhedral MOF based on a dual-walled icosahedral cage has been assembled by incorporating zinc paddlewheel units with nitrogen-rich tritopic carboxylate ligands.
Journal ArticleDOI
Methyl red removal from water by iron based metal-organic frameworks loaded onto iron oxide nanoparticle adsorbent
TL;DR: In this paper, an iron based metal organic framework loaded on iron oxide nanoparticles (Fe3O4@MIL-100(Fe)) and its capability for the removal of methyl red was investigated.
Journal ArticleDOI
Solvothermal growth of a ruthenium metal–organic framework featuring HKUST-1 structure type as thin films on oxide surfaces
Olesia Kozachuk,Kirill Yusenko,Heshmat Noei,Yuemin Wang,Stephan Walleck,Thorsten Glaser,Roland A. Fischer +6 more
TL;DR: Phase-pure crystalline thin films of a mixed-valence Ru(2)(II,III) metal-organic framework with 1,3,5-benzenetricarboxylate (btc) as a linker were solvothermally grown on amorphous alumina and silica surfaces.
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.
Journal ArticleDOI
From molecules to crystal engineering: supramolecular isomerism and polymorphism in network solids.
Journal ArticleDOI
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.