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Correlation between the dynamics of nanoconfined water and the local chemical environment in calcium silicate hydrate nanominerals

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentro de Fisica de Materiales [CFM]
dc.contributor.authorMUSUMECI, Valentina
hal.structure.identifierCentro de Fisica de Materiales [CFM]
hal.structure.identifierBASKRETE-Euskampus Fundazioa
dc.contributor.authorGORACCI, Guido
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorSANZ CAMACHO, Paula
hal.structure.identifierCentro de Fisica de Materiales [CFM]
hal.structure.identifierDonostia International Physics Center - DIPC (SPAIN)
dc.contributor.authorDOLADO, Jorge
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2021
dc.identifier.issn0947-6539
dc.description.abstractEnCalcium silicate hydrates are members of a large family of minerals with layered structures containing pendant CaOH and SiOH groups that interact with confined water molecules. To rationalize the impact of the local chemical environment on the dynamics of water, SiOH- and CaOH-rich model nanocrystals were synthesized by using the continuous supercritical hydrothermal method and then systematically studied by a combination of spectroscopic techniques. In our comprehensive analysis, the ultrafast relaxation dynamics of hanging hydroxy groups can be univocally assigned to CaOH or SiOH environments, and the local chemical environment largely affects the H-bond network of the solvation water. Interestingly, the ordered “ice-like” solvation water found in the SiOH-rich environments is converted to a disordered “liquid-like” distribution in the CaOH-rich environment. This refined picture of the dynamics of confined water and hydroxy groups in calcium silicate hydrates can also be applied to other water-containing materials, with a significant impact in many fields of materials science.
dc.language.isoen
dc.publisherWiley-VCH Verlag
dc.subject.enCalcium silicate
dc.subject.enChemical environment
dc.subject.enDielectric spectroscopy
dc.subject.enNanoconfined water
dc.subject.enNanominerals
dc.subject.enSupercritical fluids
dc.title.enCorrelation between the dynamics of nanoconfined water and the local chemical environment in calcium silicate hydrate nanominerals
dc.typeArticle de revue
dc.identifier.doi10.1002/chem.202100098
dc.subject.halChimie/Matériaux
bordeaux.journalChemistry - A European Journal
bordeaux.page11309-11318
bordeaux.volume27
bordeaux.issue44
bordeaux.peerReviewedoui
hal.identifierhal-03281274
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03281274v1
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