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Controlled morphology synthesis of nanostructured β-AlF3– x(OH)x with tunable specific surface area

hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorCAMUS-GÉNOT, Valentine
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorGUIET, Amandine
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorLHOSTE, Jérôme
hal.structure.identifierConditions Extrêmes et Matériaux : Haute Température et Irradiation [CEMHTI]
dc.contributor.authorFAYON, Franck
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorBODY, Monique
hal.structure.identifierOptique & Microscopies [NEEL - POM]
dc.contributor.authorKODJIKIAN, Stéphanie
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorMOURY, Romain
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorLEBLANC, Marc
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorBOBET, Jean-Louis
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorLEGEIN, Christophe
hal.structure.identifierInstitut des Molécules et Matériaux du Mans [IMMM]
dc.contributor.authorMAISONNEUVE, Vincent
dc.date.issued2021-09-22
dc.identifier.issn1528-7483
dc.description.abstractEnIn this work, the synthesis of β-AlF3–x(OH)x nanoparticles with very high specific surface area (SSA) using a microwave-assisted solvothermal process is reported. The influence of synthesis parameters on the morphology and SSA was investigated, and the nature of the solvent is shown to have the greatest impact. Five samples prepared using different solvent mixtures were deeply characterized by thermogravimetric analysis (TGA), N2 sorption, powder X-ray diffraction, transmission electron microscopy (TEM), and 19F and 27Al high-field solid-state NMR. Their SSAs range from 25 to 345 m2·g–1 with an associated OH content slightly increasing from ≈16% (AlF2.52(OH)0.48) to ≈19% (AlF2.42(OH)0.58), as estimated by TGA and 27Al high-field solid-state NMR. Compared to previous reference work [Dambournet, D., Chem. Mater. 2008, 204 1459−1469], β-AlF3–x(OH)x nanoparticles with SSAs up to 4 times larger were obtained. TEM revealed the formation of hollow nanostructures except when the surface exceeds 300 m2·g–1, in which case isolated nanoparticles are observed. The sample with the highest SSA also displaying an appealing cumulative pore volume of 0.060 cm3·g–1, its hydrogen adsorption capability was evaluated to show that β-AlF3–x(OH)x nanoparticles have a potential interest for hydrogen storage applications.
dc.description.sponsorshipFluorures inorganiques poreux ordonnés comme catalyseurs hétérogènes efficients
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enDiffraction
dc.subject.enNanoparticles
dc.subject.enNuclear magnetic resonance spectroscopy
dc.subject.enSolvents
dc.subject.enTransmission electron microscopy
dc.title.enControlled morphology synthesis of nanostructured β-AlF3– x(OH)x with tunable specific surface area
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.cgd.1c00808
dc.subject.halChimie/Chimie inorganique
bordeaux.journalCrystal Growth & Design
bordeaux.page5914-5927
bordeaux.volume21
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-03370214
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03370214v1
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