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dc.creatorColomer, M. T.es
dc.creatorSimenas, M.es
dc.creatorBanys, J.es
dc.creatorVattier Lagarrigue, María Florenciaes
dc.creatorGagor, A.es
dc.creatorMaczka, M.es
dc.date.accessioned2022-09-20T08:17:05Z
dc.date.available2022-09-20T08:17:05Z
dc.date.issued2022
dc.identifier.citationColomer, M.T., Simenas, M., Banys, J., Vattier Lagarrigue, M.F., Gagor, A. y Maczka, M. (2022). Effect of sintering under CO+N2/H2 and CO2+air atmospheres on the physicochemical features of a commercial nano-YSZ. Journal of Alloys and Compounds, 904, 163976.
dc.identifier.issn1873-4669es
dc.identifier.urihttps://hdl.handle.net/11441/137223
dc.description.abstractGiven the need to process anodes and composites based on nano-YSZ in reducing or in air containing additional CO2 atmospheres for the fabrication of solid oxide fuel cells (SOFCs), and solid oxide electrolysis cells (SOECs), we have studied the effect of the exposure to CO+N2/H2 or CO2+air mixtures during sintering of YSZ green pellets, prepared from commercial nanopowders, on their structure, microstructure, chemical composition and their electrical properties. The reduced sample shows Raman bands at 1298 and 1605 cm−1 that are assigned to the D and G bands of carbon, respectively. The bands intensity ratio ID/IG indicates a larger content of disordered carbon. X-ray photoelectron spectroscopy (XPS) shows that C is present in the reduced samples as reduced carbon. However, the samples sintered in CO2+air present C as carbonate-type. Impedance spectroscopy reveals that the highest total conductivity is for the reduced samples in the whole range of studied temperatures. In addition, sintering in CO2+air causes a detrimental effect on the grain boundary conductivity and therefore, on the total electrical conductivity of YSZ. It can be due to the presence of impurities such as carbonates and oxidised or even, polymerised carbonaceous species located at those areas.es
dc.description.sponsorshipEspaña Ministerio de Ciencia e Innovación and cofinanced with FEDER Funds under the Grant PID2019-104118RB-C21es
dc.formatapplication/pdfes
dc.format.extent10 p.es
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofJournal of Alloys and Compounds, 904, 163976.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectYSZes
dc.subjectSinteringes
dc.subjectReducing atmospherees
dc.subjectCO2+air atmospherees
dc.subjectXPSes
dc.subjectElectrical conductivityes
dc.titleEffect of sintering under CO+N2/H2 and CO2+air atmospheres on the physicochemical features of a commercial nano-YSZes
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Química Inorgánicaes
dc.relation.projectIDGrant PID2019-104118RB-C21es
dc.relation.publisherversionhttps://doi.org/10.1016/j.jallcom.2022.163976es
dc.identifier.doi10.1016/j.jallcom.2022.163976es
dc.journaltitleJournal of Alloys and Compoundses
dc.publication.volumen904es
dc.publication.endPage163976es
dc.contributor.funderMinisterio de Ciencia e Innovación (MICIN). Españaes

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