Influence of temperature on the structural and color properties of nickel molybdates.
dc.contributor.author | Silva, Maíra Vieira da | |
dc.contributor.author | Oliveira, Daynara Faustina Moreira de | |
dc.contributor.author | Oliveira, Henrique dos Santos | |
dc.contributor.author | Siqueira, Kisla Prislen Félix | |
dc.date.accessioned | 2021-12-14T16:48:27Z | |
dc.date.available | 2021-12-14T16:48:27Z | |
dc.date.issued | 2020 | pt_BR |
dc.description.abstract | In 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. | pt_BR |
dc.identifier.citation | SILVA, M. V. da et al. Influence of temperature on the structural and color properties of nickel molybdates. Materials Research Bulletin, v. 122, artigo 110665, 2020. Disponível em: <https://www.sciencedirect.com/science/article/abs/pii/S0025540819320380>. Acesso em: 10 jun. 2021. | pt_BR |
dc.identifier.doi | https://doi.org/10.1016/j.materresbull.2019.110665 | pt_BR |
dc.identifier.issn | 0025-5408 | |
dc.identifier.uri | http://www.repositorio.ufop.br/jspui/handle/123456789/14220 | |
dc.identifier.uri2 | https://www.sciencedirect.com/science/article/abs/pii/S0025540819320380 | pt_BR |
dc.language.iso | en_US | pt_BR |
dc.rights | restrito | pt_BR |
dc.subject | Ceramics | pt_BR |
dc.subject | Chemical synthesis | pt_BR |
dc.subject | X-ray diffraction | pt_BR |
dc.subject | Color centers | pt_BR |
dc.subject | Crystal structure | pt_BR |
dc.title | Influence of temperature on the structural and color properties of nickel molybdates. | pt_BR |
dc.type | Artigo publicado em periodico | pt_BR |
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