Water adsorption in MOFs: fundamentals and applications

Canivet, J.; Fateeva, Alexandra; Guo, Youmin; Coasne, Benoît; Farrusseng, David

doi:10.1039/c4cs00078a

Cited by 1,186 publications

(918 citation statements)

References 175 publications

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“…The stability of CuBTC in the presence of water has been studied many times and it was shown that hydrolysis reactions can lead to destruction of the MOF structure 43,46,47 . Therefore, water is generally unsuitable, for example, as an extraction medium to remove confined molecules from the porous matrix of the MOF.…”

Section: Stability Of Cubtc In Acetone Isopropanol and Methanolmentioning

confidence: 99%

Removal of Confined Ionic Liquid from a Metal Organic Framework by Extraction with Molecular Solvents

et al. 2017

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Hybrid materials of ionic liquids (IL) confined in metal organic frameworks (MOF) are promising materials for energy storage. The effects of exposing or treating such composite materials with molecular solvents, e.g. with the aim to extract and replace the IL, have not been studied to date. In this study, acetone, isopropanol, methanol, and water were used to remove the IL 1-ethyl-3-methylimidazolium ethyl sulfate confined in a Cu-based metal organic framework (CuBTC). The consequences of the solvent extraction process were analyzed using vibrational spectroscopy (FTIR), powder X-ray diffraction (PXRD), N 2 adsorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Methanol was identified as the best solvent for IL removal as it shows high extraction efficiency without affecting the porous geometry and crystal structure of the MOF. On the other hand, acetone and isopropanol were not able to completely remove the IL from CuBTC under the conditions employed. Water effectively removed the IL, but it has a significant detrimental effect on the CuBTC structure.This impact manifests as changes in the infrared spectra and the PXRD patterns as well as in the electron micrographs. The degraded CuBTC exhibits a non-porous structure that presents itself as non-uniformly agglomerated micro-rods along with very few hexagonal/amorphous phases.The confinement of acetone, isopropanol, and methanol in the MOF was also investigated. The results show that CuBTC is stable in acetone, isopropanol, and methanol but unstable in water.

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Section: Stability Of Cubtc In Acetone Isopropanol and Methanolmentioning

confidence: 99%

Removal of Confined Ionic Liquid from a Metal Organic Framework by Extraction with Molecular Solvents

et al. 2017

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“…In some recent reviews by Canivet and Burtch, the limits and promises of the MOF stability towards water are treated. 280,281 In a previous pioneering paper by Low, a good overview of the steam stability of MOFs as a function of temperature is given. 282 In many studies on steam stability of MOF membranes, the tests have been carried out only for short periods of time (1-2 days) and it is hard to make conclusions on the long-term stability.…”

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confidence: 99%

Zeolite membranes – a review and comparison with MOFs

et al. 2015

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aThe latest developments in zeolite membranes are reviewed, with an emphasis on the synthesis techniques, including seed assembly and secondary growth methods. This review also discusses the current industrial applications of zeolite membranes, the feasibility of their use in membrane reactors and their hydrothermal stability. Finally, zeolite membranes are compared with metal-organic framework (MOF) membranes and the latest advancements in MOF and mixed matrix membranes are highlighted.

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“…Metal-organic framework (MOF) is a class of crystalline hybrid porous material that represents a great source of potential structures for sorption applications, because of their tunable chemical and topological features [4]. Most of these solids are superior to other microporous materials in terms of internal surface area and micropore volume.…”

Section: Introductionmentioning

confidence: 99%

Design of Porous Metal-Organic Frameworks for Adsorption Driven Thermal Batteries

2017

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Thermal batteries based on a reversible adsorption/desorption of a working fluid (water, methanol, ammonia) rather than the conventional vapor compression is a promising alternative to exploit waste thermal energy for heat reallocation. In this context, there is an increasing interest to find novel porous solids able to adsorb a high energy density of working fluid under low relative vapor pressure condition combined with an easy ability of regeneration (desorption) at low temperature, which are the major requirements for adsorption driven heat pumps and chillers. The porous crystalline hybrid materials named Metal-Organic Frameworks (MOF) represent a great source of inspiration for sorption based-applications owing to their tunable chemical and topological features associated with a large variability of pore sizes. Recently, we have designed a new MOF named MIL-160 (MIL stands for Materials of Institut Lavoisier), isostructural to CAU-10, built from the assembly of corner sharing aluminum chains octahedra AlO 4 (OH) 2 with the 2,5-furandicarboxylic linker substituting the pristine organic linker, 1,4-benzenedicarboxylate. This ligand replacement strategy proved to enhance both the hydrophilicity of the MOF and its amount of water adsorbed at low p/p 0 . This designed solid was synthesized and its chemical stability/adsorption performances verified. Here, we have extended this study by incorporating other polar heterocyclic linkers and a comparative computational study of the water adsorption performances of these novel structures has been performed. To that purpose, the cell and geometry optimizations of all hypothetical frameworks were first performed at the density functional theory level and their water adsorption isotherms were further predicted by using force-field based Grand-Canonical Monte Carlo simulations. This study reveals the ease tunable water affinity of MOF for the desired application.

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Water adsorption in MOFs: fundamentals and applications

Cited by 1,186 publications

References 175 publications

Removal of Confined Ionic Liquid from a Metal Organic Framework by Extraction with Molecular Solvents

Removal of Confined Ionic Liquid from a Metal Organic Framework by Extraction with Molecular Solvents

Zeolite membranes – a review and comparison with MOFs

Design of Porous Metal-Organic Frameworks for Adsorption Driven Thermal Batteries

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