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dc.contributor.authorVillas-Boas, Lúcia Adriana [UNESP]
dc.contributor.authorGoulart, Celso Antonio
dc.contributor.authorDe Souza, Dulcina Pinatti Ferreira
dc.date.accessioned2020-12-12T01:15:34Z
dc.date.available2020-12-12T01:15:34Z
dc.date.issued2019-01-01
dc.identifierhttp://dx.doi.org/10.2298/PAC1904333V
dc.identifier.citationProcessing and Application of Ceramics, v. 13, n. 4, p. 333-341, 2019.
dc.identifier.issn2406-1034
dc.identifier.issn1820-6131
dc.identifier.urihttp://hdl.handle.net/11449/198538
dc.description.abstractIn this work, we investigate the effects of Sr and Mn co-doping on the micro structural development and electrical properties of LaAlO3 synthesised by solid state reaction and sintered at 1500 and 1600 °C The addition of Sr and Mn contributed to the crystallization and stabilization of the perovskite structure. However, the addition of Sr alone lead to the formation of heterogeneous micro structure, while the combined effect of Sr and Mn improved Al and La homogeneity in the perovskite structure. Total electrical conductivity is enhanced by three orders of magnitude with Sr addition (La08Sr02AlO3-δ: 5.74 × 10-4 S/cm at 600 °C) and five orders of magnitude with Mn co-doping (La0.8Sr0.2Al0.8Mn0.2O3-δ: 3.6 × 10-2 S/cm at 600 °C) compared to the undoped LaAlO3 (2.96 × 10-6 S/cm at 600 °C). The Sr and Mn co-doped LaAlO3 present favourable catalytic activity for electrode reactions even with a low dopant concentration (20 mol%).en
dc.format.extent333-341
dc.language.isoeng
dc.relation.ispartofProcessing and Application of Ceramics
dc.sourceScopus
dc.subjectDoping
dc.subjectElectrical conduction
dc.subjectLaAlO3
dc.subjectPerovskite oxides
dc.titleEffects of Sr and Mn co-doping on microstructural evolution and electrical properties of LaAlO3en
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.description.affiliationSão Paulo State University (UNESP) School of Sciences and Engineering
dc.description.affiliationGraduate Program in Materials Science and Engineering Department of Materials Engineering Federal University of São Carlos
dc.description.affiliationUnespSão Paulo State University (UNESP) School of Sciences and Engineering
dc.identifier.doi10.2298/PAC1904333V
dc.identifier.scopus2-s2.0-85079600684
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