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Microwave-assisted and metal-induced crystallization: a rapid and low temperature combination

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDANTY, Paul
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMAZEL, Antoine
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCORMARY, Benoit
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDE MARCO, Maria
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorALLOUCHE, Joachim
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorFLAHAUT, Delphine
hal.structure.identifierInstitut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux [IPREM]
dc.contributor.authorJIMÉNEZ-LAMANA, Javier
hal.structure.identifierPôle Microscopie Electronique
dc.contributor.authorLACOMME, Sabrina
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDELVILLE, Marie-Hélène
dc.contributor.authorDRISKO, Glenna
dc.date.issued2020-05-04
dc.identifier.issn0020-1669
dc.description.abstractEnHere, we present a new crystallization process which, by combining microwaves and metal-induced devitrification, reduces both the time and the temperature of crystallization compared to other known methods. Titania crystallization initiates at a temperature as low as 125 °C within a few minutes of microwave radiation. Several cations induce this low-temperature crystallization, namely, Mn2+, Co2+, Ni2+, Al3+, Cu2+ and Zn2+. The crystallization mechanism is probed with electron microscopy, elemental mapping, single-particle inductively coupled plasma mass spectrometry, X-ray photoelectron spectroscopy, Auger electron spectroscopy, and scanning Auger mapping. These techniques show that the metal ion migration through the vitreous titania under microwave radiation occurs prior to crystallization. The crystalline particles are suspended in solution at the end of the treatment, avoiding particle aggregation and sintering. The crystalline suspensions are thus ready for processing into a material or employment in any other application. This combination of microwaves and metal-induced crystallization is applied here to TiO2, but we are investigating its application to other materials as an ecofriendly crystallization method.
dc.description.sponsorshipDéveloppement d'une infrastructure française distribuée coordonnée
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enanatase
dc.subject.enmicrowave radiation
dc.subject.enmetal-induced crystallization
dc.subject.enX-ray
dc.subject.enTitania
dc.title.enMicrowave-assisted and metal-induced crystallization: a rapid and low temperature combination
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.inorgchem.0c00358
dc.subject.halChimie/Matériaux
bordeaux.journalInorganic Chemistry
bordeaux.page6232-6241
bordeaux.volume59
bordeaux.issue9
bordeaux.peerReviewedoui
hal.identifierhal-02612932
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02612932v1
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