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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/61571
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dc.creatorGuilherme Mendes Martinspt_BR
dc.creatorRoberto Luiz Moreirapt_BR
dc.creatorAnderson Diaspt_BR
dc.date.accessioned2023-11-30T16:57:24Z-
dc.date.available2023-11-30T16:57:24Z-
dc.date.issued2020-
dc.citation.volume109pt_BR
dc.citation.spage103107pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.vibspec.2020.103107pt_BR
dc.identifier.issn0924-2031pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/61571-
dc.description.resumoComplex cobalt molybdates were prepared by conventional (CH) and microwave-assisted (MW) hydrothermal methods. Structural, morphological and vibrational properties of the obtained NaCo2(H3O2)(MoO4)2 and Co2(MoO4)(OH)2 materials were investigated. The first compound was obtained as majority phase for all tested MW processing conditions; conversely, for the CH method the second composition (desodiated) was the majority phase. Phase-pure, round-shaped Co2(MoO4)(OH)2 was obtained by CH processing in the temperature range 150−250 °C, for 24 h. On the other hand, the MW process produced micrometer-size rods with high anisotropy. Raman spectroscopic analysis of the monoclinic NaCo2(H3O2)(MoO4)2 materials, using conventional peak fitting procedures to resolve the vibrational modes, showed a good agreement between experimental results and group theory predictions. Raman spectra of the orthorhombic Co2(MoO4)(OH)2 showed similarities with the spectra of other hydroxy molybdates.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.ispartofVibrational Spectroscopypt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectNatrochalcitept_BR
dc.subjectHydroxy molybdatespt_BR
dc.subjectMicrowavept_BR
dc.subjectHydrothermalpt_BR
dc.subject.otherCompostos de molibdêniopt_BR
dc.subject.otherCobaltopt_BR
dc.subject.otherRaman, Espectroscopia dept_BR
dc.subject.otherMicroondaspt_BR
dc.titleMicrostructure and optical vibration features of complex cobalt molybdates synthesized by the microwave and conventional hydrothermal processespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0924203120301119pt_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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