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Investigation of the interaction between adsorbed water and various morphologies of boehmite nanoparticles prepared by continuous supercritical hydrothermal synthesis

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPEIGNEY, Erwan
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPOULON-QUINTIN, Angeline
hal.structure.identifierSafran Tech
dc.contributor.authorCAVARROC, Marjorie
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAUBERT, Guillaume
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDUTTINE, Mathieu
hal.structure.identifierPlateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]
dc.contributor.authorSARROSTE, Christine Labrugère
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2023
dc.identifier.issn0896-8446
dc.description.abstractEnBoehmite applications are often subject to specific characteristics in terms of morphologies and surface properties. The versatile continuous supercritical hydrothermal method allows synthesizing various boehmite morphologies from rhombic to hexagonal platelet-like nanoparticles depending on the preferential adsorption of part of the precursor after transformation species on the (020) surface resulting in a preferential growth along [001] and mostly [100] directions. This adsorption on surface free sites plays the role of morphology stabilizer and results in the reduction of adsorbed water. The interaction between adsorbed water and the boehmite morphology depends on various parameters: 1) the structure order of boehmite as exhibited by XPS analysis associated with 1H Solid-State NMR spectroscopy and, 2) the number of available free sites, which tend to be filled by the adsorption of nitrates as observed by Raman spectroscopy.
dc.language.isoen
dc.publisherElsevier
dc.subject.enSynthetic boehmite nanoparticles
dc.subject.enWater and nitrate adsorption
dc.subject.enpH-dependent morphology
dc.subject.enContinuous supercritical hydrothermal synthesis
dc.subject.enSupercritical water
dc.title.enInvestigation of the interaction between adsorbed water and various morphologies of boehmite nanoparticles prepared by continuous supercritical hydrothermal synthesis
dc.typeArticle de revue
dc.identifier.doi10.1016/j.supflu.2022.105829
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Supercritical Fluids
bordeaux.page105829 (11 p.)
bordeaux.volume193
bordeaux.peerReviewedoui
hal.identifierhal-03907821
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03907821v1
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