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Design of salt-metal organic framework composites for seasonal heat storage applications

dc.rights.licenseCC0en_US
dc.contributor.authorPermyakova, A.
dc.contributor.authorWang, S.
dc.contributor.authorCourbon, E.
dc.contributor.authorNouar, F.
dc.contributor.authorHeymans, N.
dc.contributor.authorD'Ans, P.
dc.contributor.authorBarrier, N.
dc.contributor.authorBillemont, P.
dc.contributor.authorDe Weireld, G.
dc.contributor.authorSteunou, N.
dc.contributor.authorFrère, M.
dc.contributor.authorSerre, C.
dc.date.accessioned2024-11-08T13:39:32Z
dc.date.available2024-11-08T13:39:32Z
dc.date.issued2017
dc.identifier.issn20507496 20507488en_US
dc.identifier.urihttps://luck.synhera.be/handle/123456789/2846
dc.identifier.doi10.1039/c7ta03069jen_US
dc.description.abstractJournal of Materials Chemistry A, 5, (2017), 12889-12898en_US
dc.description.abstractenPorous materials are recognized as very promising materials for water-sorption-based energy storage and transformation. This study presents the first attempt to use Metal Organic Frameworks (MOFs) as host matrices of salts for the preparation of composite sorbents for seasonal heat storage. We have considered six water stable MOFs (i.e. MIL-127(Fe), MIL-100(Fe), MIL-101(Cr), UiO-66(Zr)–NH2, MIL- 125(Ti)–NH2 and MIL-160(Al)) differing in their crystalline structure, hydrophilic–hydrophobic balance, pore size/shape and pore volume. The successful encapsulation of CaCl2 in the pores of MOFs leads to two series of MOFs–CaCl2 composites whose salt content could be finely tuned depending on the pore volume of MOFs and the synthesis conditions. These materials were fully characterized by combining multiple techniques (i.e. powder X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, X-ray energy-dispersive spectrometry elemental mapping, N2 sorption and elemental analysis). The water sorption properties of these composites were studied under conditions of a solar heat storage system (i.e. adsorption at 30 C, desorption at 80 C, both steps at a water vapour pressure of 12.5 mbar) in comparison to the parent MOFs. We analyze how the physico-chemical and structural properties of these host matrices impact the energy density of composite sorbents. We show that two mesoporous MOFs–CaCl2 composites (i.e. MIL-100(Fe)/CaCl2 and MIL-101(Cr)/CaCl2) with the highest salt loading (46 and 62 wt% respectively) exhibit very high energy storage capacities (up to 310 kW h m 3 (485 W h kg 1)) outperforming the best composites or physical sorbents reported so far together with very little loss upon adsorption–desorption cycling and high chemical stability upon ageing (up to 18 months).en_US
dc.description.sponsorshipOTHen_US
dc.language.isoENen_US
dc.publisherRoyal society of chemistryen_US
dc.relation.ispartofJournal of Materials Chemistry Aen_US
dc.rights.uriinconnuen_US
dc.titleDesign of salt-metal organic framework composites for seasonal heat storage applicationsen_US
dc.title.enDesign of salt–metal organic framework composites for seasonal heat storage applicationsen_US
dc.typeArticle scientifiqueen_US
synhera.classificationPhysique, chimie, mathématiques & sciences de la terreen_US
synhera.institutionHE Libre de Bruxelles Ilya Prigogineen_US
synhera.cost.totalinconnuen_US
synhera.cost.apcinconnuen_US
synhera.cost.compinconnuen_US
synhera.cost.acccompinconnuen_US
dc.description.versionOuien_US
dc.rights.holderinconnuen_US
synhera.identifier.orcidwork104252022


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