Atenção!


O atendimento às questões referentes ao Repositório Institucional será interrompido entre os dias 20 de dezembro de 2024 a 5 de janeiro de 2025.

Pedimos a sua compreensão e aproveitamos para desejar boas festas!

 

Espinela Li2CoTi3O8 nanométrica obtenida para aplicación como pigmento

dc.contributor.authorDa Câmara, Maria Suely Costa
dc.contributor.authorPimentel, Lidiane Alves
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorDa Nobrega Azevedo, Luciano
dc.contributor.authorDe Araújo Melo, Dulce Maria
dc.contributor.institutionUnidade Acadêmica de Serra Talhada
dc.contributor.institutionProproma de Pós Graduação em Engenharia de Materiais
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto de Química
dc.date.accessioned2018-12-11T17:27:53Z
dc.date.available2018-12-11T17:27:53Z
dc.date.issued2016-01-01
dc.description.abstractPigments are used in ceramics, cosmetics, inks, and other applications widely materials. To this must be single and easily reproducible. Moreover, the pigments obtained in the nanoscale are more stable, reproducible and highlight color in small amounts compared with those obtained in micrometer scale. The mixed oxides with spinel structures AB2O4 have important applications, including: pigments, refractories, catalytic and electronic ceramics. In this context, the aim of this work was the preparation of powder Li2CoTi3O8 spinel phase with nanometer particle size of the polymeric precursor method (Pechini) and characterization by means of thermal analysis (TG/DTA) X-ray diffraction (XRD), refined by the Rietveld method, BET, transmission electron microscopy (TEM), Raman and colorimetric coordinates. The pigment was obtained by heat treatment of 400 °C to 1000 °C after pyrolysis at 300 °C/1 h for removing the organic material. Li2CoTi3O8 desired spinel phase was obtained from 500 °C, and presenting stability nanometer to about 1.300 °C. Spinel green phase introduced at temperatures in the range of 400 °C and 500 °C, and 600 °C at temperatures between blue and 1000 °C.en
dc.description.affiliationUniversidade Federal Rural de Pernambuco Unidade Acadêmica de Serra Talhada
dc.description.affiliationUniversidade Federal Do Rio Grande Do Norte Proproma de Pós Graduação em Engenharia de Materiais
dc.description.affiliationInstituto de Química UNESP-Araraquara-São Paulo
dc.description.affiliationUniversidade Federal Do Rio Grande Do Norte Instituto de Química
dc.description.affiliationUnespInstituto de Química UNESP-Araraquara-São Paulo
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent71-78
dc.identifierhttp://dx.doi.org/10.1016/j.bsecv.2015.11.004
dc.identifier.citationBoletin de la Sociedad Espanola de Ceramica y Vidrio, v. 55, n. 2, p. 71-78, 2016.
dc.identifier.doi10.1016/j.bsecv.2015.11.004
dc.identifier.issn2173-0431
dc.identifier.issn0366-3175
dc.identifier.scopus2-s2.0-84963852616
dc.identifier.urihttp://hdl.handle.net/11449/177963
dc.language.isospa
dc.relation.ispartofBoletin de la Sociedad Espanola de Ceramica y Vidrio
dc.relation.ispartofsjr0,264
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectLi2CoTi3O8
dc.subjectSpinel
dc.titleEspinela Li2CoTi3O8 nanométrica obtenida para aplicación como pigmentoes
dc.title.alternativeSpinel Li2CoTi3O8 nanometer obtained for application as pigmenten
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentBioquímica e Tecnologia - IQpt

Arquivos