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

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Autor(es): dc.contributorUniversidade Federal de Lavras (UFLA)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorLaval University-
Autor(es): dc.creatorDias, Jeferson A.-
Autor(es): dc.creatorSantagneli, Silvia H.-
Autor(es): dc.creatorRodrigues, Ana C. M.-
Autor(es): dc.creatorBôas, Naiza V.-
Autor(es): dc.creatorMessaddeq, Younès-
Data de aceite: dc.date.accessioned2025-08-21T15:53:53Z-
Data de disponibilização: dc.date.available2025-08-21T15:53:53Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-04-06-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1021/acs.jpcc.3c00476-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249057-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249057-
Descrição: dc.descriptionIn 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.-
Descrição: dc.descriptionChemical 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-
Descrição: dc.descriptionPhotonic Materials Laboratory─LMF Institute of Chemistry São Paulo State University, Av. Prof. Francisco Degni 55, Jardim Quitandinha, São Paulo-
Descrição: dc.descriptionVitreous Materials Laboratory─LaMaV Department of Materials Engineering Federal University of São Carlos, Rua dos Bem-te-vis 321, São Paulo-
Descrição: dc.descriptionLaboratory 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-
Descrição: dc.descriptionCentre for Optics Photonics and Lasers─COPL Faculty of Science and Engineering Laval University, rue de la Terrasse 2375-
Descrição: dc.descriptionPhotonic Materials Laboratory─LMF Institute of Chemistry São Paulo State University, Av. Prof. Francisco Degni 55, Jardim Quitandinha, São Paulo-
Formato: dc.format6207-6225-
Idioma: dc.languageen-
Relação: dc.relationJournal of Physical Chemistry C-
???dc.source???: dc.sourceScopus-
Título: 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 Ceramics-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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