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Understanding the Evolution of the Structure and Electrical Properties during Crystallization of Li1.5Al0.5Ge1.5(PO4)3and Li1.5Sc0.17Al0.33Ge1.5(PO4)3NASICON -Type Glass Ceramics

dc.contributor.authorDias, Jeferson A. [UNESP]
dc.contributor.authorSantagneli, Silvia H. [UNESP]
dc.contributor.authorRodrigues, Ana C. M.
dc.contributor.authorBôas, Naiza V.
dc.contributor.authorMessaddeq, Younès
dc.contributor.institutionUniversidade Federal de Lavras (UFLA)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionLaval University
dc.date.accessioned2023-07-29T14:01:13Z
dc.date.available2023-07-29T14:01:13Z
dc.date.issued2023-04-06
dc.description.abstractIn this paper, the effects of crystallization advance on the material structure and electrical properties of lithium-ion Na+super ionic conductor (NASICON) glass ceramics were investigated. Glasses with Li1.5Al0.5Ge1.5(PO4)3and Li1.5Sc0.17Al0.33Ge1.5(PO4)3compositions were crystallized in controlled conditions to obtain gradual increment of the volume crystallized fraction. The glass-to-crystal transformation was then monitored by differential scanning calorimetry analysis (DSC), X-ray diffractometry (XRD), Raman spectroscopy, solid-state nuclear magnetic resonance spectroscopy (MAS NMR), and electron microscopy, along with chemical analyses. Finally, the electrical properties of the specimens were evaluated by impedance spectroscopy to observe the changes in electrical properties according to the crystallization advance. Results revealed that glasses containing scandium are more stable against crystallization than their neat counterparts. Crystallization led to the formation of single-phase NASICON glass ceramics. Scandium induced a lattice expansion of the NASICON structure. Furthermore, crystallization induces remarkable structural changes in the materials as a whole, either in local order or in medium to long order. No important increase in conductivity was observed in earlier stages of crystallization. After the percolation of crystals, conductivity increases sharply and the remaining glassy phase has little impact on the total conductivity of the material. Scandium expands the rhombohedral structure but increases the glass stability and reduces the sizes of crystals for the fully crystallized glass ceramics. Glass ceramics with larger grains are more propitious for conductivity than the more refined ones. Therefore, this paper offers key information about the understanding of NASICON crystallization and its structural evolution, providing important insights into the crystallization of these electrolytes.en
dc.description.affiliationChemical and Physical Phenomena Laboratory─LQF Institute of Science and Technology─ICTIN Federal University of Lavras (UFLA), Av. Antônio Carlos Pinheiro de Alcântara 855, Jardim Mediterraneé, São Sebastião do Paraíso
dc.description.affiliationPhotonic Materials Laboratory─LMF Institute of Chemistry São Paulo State University, Av. Prof. Francisco Degni 55, Jardim Quitandinha, São Paulo
dc.description.affiliationVitreous Materials Laboratory─LaMaV Department of Materials Engineering Federal University of São Carlos, Rua dos Bem-te-vis 321, São Paulo
dc.description.affiliationLaboratory of Inorganic and Vitreous Materials─LaMIV São Carlos Institute of Chemistry University of São Paulo, Av. Trabalhador São Carlense 400, Parque Arnold Schimidt, São Paulo
dc.description.affiliationCentre for Optics Photonics and Lasers─COPL Faculty of Science and Engineering Laval University, rue de la Terrasse 2375
dc.description.affiliationUnespPhotonic Materials Laboratory─LMF Institute of Chemistry São Paulo State University, Av. Prof. Francisco Degni 55, Jardim Quitandinha, São Paulo
dc.format.extent6207-6225
dc.identifierhttp://dx.doi.org/10.1021/acs.jpcc.3c00476
dc.identifier.citationJournal of Physical Chemistry C, v. 127, n. 13, p. 6207-6225, 2023.
dc.identifier.doi10.1021/acs.jpcc.3c00476
dc.identifier.issn1932-7455
dc.identifier.issn1932-7447
dc.identifier.scopus2-s2.0-85151271156
dc.identifier.urihttp://hdl.handle.net/11449/249057
dc.language.isoeng
dc.relation.ispartofJournal of Physical Chemistry C
dc.sourceScopus
dc.titleUnderstanding the Evolution of the Structure and Electrical Properties during Crystallization of Li1.5Al0.5Ge1.5(PO4)3and Li1.5Sc0.17Al0.33Ge1.5(PO4)3NASICON -Type Glass Ceramicsen
dc.typeArtigo
unesp.author.orcid0000-0001-8066-3784 0000-0001-8066-3784[1]
unesp.author.orcid0000-0002-5456-6347[2]
unesp.author.orcid0000-0003-1689-796X[3]
unesp.author.orcid0000-0002-2190-7707[4]
unesp.author.orcid0000-0002-0868-2726[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentQuímica Inorgânica - IQARpt

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