Bronze sodium tungsten precipitation synthesis and lithium intercalation

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.creatorMartins, Tiago A.-
Autor(es): dc.creatorGonçalves, Roger-
Autor(es): dc.creatorCabral, L.-
Autor(es): dc.creatorMachado, Thales Rafael-
Autor(es): dc.creatorda Silva Paiva, Robert-
Autor(es): dc.creatorRoca, Roman Alvarez-
Autor(es): dc.creatorPereira, Ernesto Chaves-
Autor(es): dc.creatorSan-Miguel, Miguel A.-
Autor(es): dc.creatorda Silva, E. Z.-
Autor(es): dc.creatorLongo, E.-
Data de aceite: dc.date.accessioned2025-08-21T21:45:46Z-
Data de disponibilização: dc.date.available2025-08-21T21:45:46Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10008-024-06110-2-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/302968-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/302968-
Descrição: dc.descriptionHexagonal sodium tungsten bronze (h-NaxWO3+x/2·yH2O) nanorods were obtained by simple acid precipitation in 16 min at 97 °C, evidencing the saving of time and energy. The W-OH2 modes were observed in Raman and Fourier transform infrared (FTIR) spectra to confirm the presence of structural water. The h-NaxWO3+x/2·yH2O was subjected to heat treatment at 300 °C to analyze the effects of heating on the material. X-ray photoelectron spectroscopy (XPS) and diffuse reflectance ultraviolet-visible absorption spectra (UV-vis) indicated the occurrence of diffusion on the surface-bulk of Na+ ions, and the band gap changed from 2.7 eV to 2.4 eV with heating. Electrochromic devices based on h-NaxWO3+x/2·yH2O were constructed. The sample without heat treatment and with structural water loss presented the electrochromic efficiency of 127.5 cm2/C and 561.8 cm2/C, respectively, evidencing the creation of vacancies for the intercalation of lithium ions from heat treatment. Also, density functional theory calculations were performed to study the lithium diffusion process in the interstitial Na-WO6 channels of sodium tungsten bronze. Graphical abstract: (Figure presented.).-
Descrição: dc.descriptionLIEC-CDMF Department of Chemistry Federal University of São Carlos, SP-
Descrição: dc.descriptionDepartment of Physics and Meteorology School of Sciences São Paulo State University (UNESP)-
Descrição: dc.descriptionGNano – Nanomedicine and Nanotoxicology Group São Carlos Institute of Physics University of São Paulo, CP 369, SP-
Descrição: dc.descriptionInstitute of Chemistry State University of Campinas-Unicamp, SP-
Descrição: dc.descriptionDepartment of Physics and Meteorology School of Sciences São Paulo State University (UNESP)-
Idioma: dc.languageen-
Relação: dc.relationJournal of Solid State Electrochemistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectElectrochromism-
Palavras-chave: dc.subjectLithium intercalation-
Palavras-chave: dc.subjectPrecipitation synthesis-
Palavras-chave: dc.subjectSodium tungsten bronze-
Título: dc.titleBronze sodium tungsten precipitation synthesis and lithium intercalation-
Tipo de arquivo: dc.typelivro digital-
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