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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/58256
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dc.creatorGuilherme Mendes Martinspt_BR
dc.creatorPâmela de Oliveira Coelhopt_BR
dc.creatorRoberto Luiz Moreirapt_BR
dc.creatorAnderson Diaspt_BR
dc.date.accessioned2023-08-25T17:17:35Z-
dc.date.available2023-08-25T17:17:35Z-
dc.date.issued2018-
dc.citation.volume44pt_BR
dc.citation.issue11pt_BR
dc.citation.spage12426pt_BR
dc.citation.epage12434pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.ceramint.2018.04.032pt_BR
dc.identifier.issn0272-8842pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/58256-
dc.description.resumoConventional and microwave-assisted hydrothermal methods were used to synthesize Cu3(MoO4)2(OH)2 ceramics. Different experimental conditions of temperature, time and precipitation rate were employed to explore the growth mechanisms, structural and morphological properties of the obtained copper molybdates. The use of microwave-assisted reactors at 150 °C/10–30 min produced a mixture of copper molybdate hydrates, while only Cu3(MoO4)2(OH)2 was obtained by using microwave processing at longer times (above 120 min) or conventional hydrothermal reactors (110–250 °C/24 h). Experiments conducted after fast and slow coprecipitation rates resulted in different crystallographic phases and morphologies. Flower-like and rod-like micrometer-sized ceramics were produced with high anisotropy and single-crystalline nature. A better understanding on the growth mechanisms, as well as on the structural and morphological characteristics of copper molybdates was attained. Based upon the relative enhancement of Raman bands in parallel or in perpendicular configuration, a symmetry assignment of 34 (17Ag + 17Bg) external modes for Cu3(MoO4)2(OH)2 ceramics (42 bands are expected) was possible. Besides, five (of six possible) internal OH-stretching modes were identified in the spectral region above 3200 cm−1.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofCeramics Internationalpt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectCeramicspt_BR
dc.subjectRaman spectroscopypt_BR
dc.subjectCu3(MoO4)2(OH)2pt_BR
dc.subjectLindgrenitept_BR
dc.subjectPolarized-resolved scatteringpt_BR
dc.subject.otherMaterial cerâmicopt_BR
dc.subject.otherRaman, Espectroscopia dept_BR
dc.subject.otherCobrept_BR
dc.subject.otherRaios X - Difraçãopt_BR
dc.titleHydrothermal synthesis and polarized micro-raman spectroscopy of copper molybdatespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0272884218308915pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7620-6708pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6820-0269pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7413-1087pt_BR
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