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dc.contributor.authorAzcondo, María Teresaes_ES
dc.contributor.authorYuste, Mercedeses_ES
dc.contributor.authorPérez-Flores, Juan Carloses_ES
dc.contributor.authorMuñoz-Gil, Danieles_ES
dc.contributor.authorGarcía-Martín, Susanaes_ES
dc.contributor.authorMuñoz-Noval, Alvaroes_ES
dc.contributor.authorPuente-Orench, Inéses_ES
dc.contributor.authorGarcía-Alvarado, Flavianoes_ES
dc.contributor.authorAmador, Uliseses_ES
dc.date.accessioned2019-05-21T09:01:25Z-
dc.date.available2019-05-21T09:01:25Z-
dc.date.issued2017-
dc.identifier.citationChemSusChem 10(14): 2978-2989 (2017)es_ES
dc.identifier.issn1864-5631-
dc.identifier.urihttp://hdl.handle.net/10261/181857-
dc.description.abstractThe perovskite series Sr2CoNb1−xTixO6−δ (0≤x≤1) was investigated in the full compositional range to assess its potential as cathode material for solid oxide fuel cell (SOFC). The variation of transport properties and thus, the area specific resistances (ASR) are explained by a detailed investigation of the defect chemistry. Increasing the titanium content from x=0–1 produces both oxidation of Co3+ to Co4+ (from 0 up to 40 %) and oxygen vacancies (from 6.0 to 5.7 oxygen atom/formula unit), although each charge compensation mechanism predominates in different compositional ranges. Neutron diffraction reveals that samples with high Ti‐contents lose a significant amount of oxygen upon heating above 600 K. Oxygen is partially recovered upon cooling as the oxygen release and uptake show noticeably different kinetics. The complex defect chemistry of these compounds, together with the compositional changes upon heating/cooling cycles and atmospheres, produce a complicated behavior of electrical conductivity. Cathodes containing Sr2CoTiO6−δ display low ASR values, 0,13 Ω cm2 at 973 K, comparable to those of the best compounds reported so far, being a very promising cathode material for SOFC.es_ES
dc.description.sponsorshipWe thank Ministerio de Economía y Competitividad and Comunidad de Madrid for funding the projects MAT2013‐46452‐C4‐1‐R, MAT2013‐46452‐C4‐4‐R, and S2013/MIT‐2753, respectively. Agencia Estatal de Investigación and Fondo Europeo de Desarrollo Regional are also acknowledged for financing the project MAT2016‐78362‐C4‐1‐R. We acknowledge CSIC, ILL and ESRF for financial support and facilitate the access to the BM25‐SpLine line at ESRF and D1B diffractometer at ILL.es_ES
dc.language.isoenges_ES
dc.publisherWiley-VCHes_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013‐46452‐C4‐1‐Res_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2013‐46452‐C4‐4‐Res_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2016‐78362‐C4‐1‐Res_ES
dc.relationS2013/MIT‐2753/MATERYENER3CMes_ES
dc.rightsclosedAccesses_ES
dc.titleDefect chemistry, electrical properties, and evaluation of new oxides Sr2CoNb1−xTixO6−δ (0≤x≤1) as cathode materials for solid oxide fuel cellses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1002/cssc.201700648-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1002/cssc.201700648es_ES
dc.identifier.e-issn1864-564X-
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderComunidad de Madrides_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderConsejo Superior de Investigaciones Científicas (España)es_ES
dc.contributor.funderInstitut Laue-Langevines_ES
dc.contributor.funderEuropean Synchrotron Radiation Facilityes_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/100012818es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100001671es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003339es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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