Influence of temperature on the structural and color properties of nickel molybdates.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilva, Maíra Vieira da-
Autor(es): dc.creatorOliveira, Daynara Faustina Moreira de-
Autor(es): dc.creatorOliveira, Henrique dos Santos-
Autor(es): dc.creatorSiqueira, Kisla Prislen Félix-
Data de aceite: dc.date.accessioned2025-08-21T15:22:56Z-
Data de disponibilização: dc.date.available2025-08-21T15:22:56Z-
Data de envio: dc.date.issued2021-12-13-
Data de envio: dc.date.issued2021-12-13-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/jspui/handle/123456789/14220-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/abs/pii/S0025540819320380-
Fonte completa do material: dc.identifierhttps://doi.org/10.1016/j.materresbull.2019.110665-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1012627-
Descrição: dc.descriptionIn this work, nickel molybdates were synthesized by co-precipitation method, at 70 °C, and were thermally treated at temperatures ranging from 300 to 1000 °C. Firstly, the hydrated precursor (NiMoO4.0.65H2O) was obtained, followed by calcination at 300–600 °C to produce a mixture of β- and α-NiMoO4 phases. The pure α phase could only be obtained above 700 °C. The relationships among the crystal structure, colorimetric parameters, and spectroscopic properties (Raman and UV–vis diffuse reflectance) of the NiMoO4 were in vestigated. Although the thermochromic β phase was not obtained in the pure form, the heat treatments enabled tuning of the band gaps of the materials, with the color changing from yellow to greenish-yellow and the band gap changing from 3.23 to 2.33 eV. The colorimetric parameters (L*a*b*) were determined and the coloring performances of the NiMoO4 materials were evaluated by incorporating them into a clear polymer substrate material.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectCeramics-
Palavras-chave: dc.subjectChemical synthesis-
Palavras-chave: dc.subjectX-ray diffraction-
Palavras-chave: dc.subjectColor centers-
Palavras-chave: dc.subjectCrystal structure-
Título: dc.titleInfluence of temperature on the structural and color properties of nickel molybdates.-
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