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dc.contributor.authorVidal, Karmelees_ES
dc.contributor.authorLarrañaga, Aitores_ES
dc.contributor.authorMorán-Ruiz, Aroaes_ES
dc.contributor.authorLaguna-Bercero, M. A.es_ES
dc.contributor.authorBaker, Robert J.es_ES
dc.contributor.authorArriortua, María Isabeles_ES
dc.date.accessioned2019-05-21T12:29:42Z-
dc.date.available2019-05-21T12:29:42Z-
dc.date.issued2017-
dc.identifier.citationPowder Technology 322: 131-139 (2017)es_ES
dc.identifier.issn0032-5910-
dc.identifier.urihttp://hdl.handle.net/10261/181920-
dc.description.abstractThe perovskite La0.15Sm0.35Sr0.08Ba0.42FeO3 − δ has been prepared by the glycine nitrate (GNC) route, varying the fuel/oxidizer ratio (glycine/nitrate, G/N = 1 and 2) and cooling rate (slow cooling and air-quenched), in order to study the influence of sample preparation on the materials' properties, in the context of their application as a cathode material for SOFCs. For this, the performance of the prepared mixed ion and electron conducting perovskite oxides is dictated by their structure, oxygen stoichiometry (3 − δ), chemical composition and thermal expansion properties. High-resolution Synchrotron X-ray powder diffraction patterns were collected at room temperature and at 700 and 800 °C. It was found that the materials had a cubic crystal structure at these temperatures. As expected, 3 − δ decreased as temperature increased, and was slightly smaller for the quenched sample. Higher electrical conductivity values were obtained for the sample with G/N = 1 (air-quenched) in the cooling rate. At 700 and 800 °C the cathode synthesized with G/N = 1 and air-quenched showed the smallest polarization resistance values in impedance spectroscopy studies. Therefore, the physicochemical and electrochemical characterization clearly demonstrated the influence of the synthetic conditions on the cathode performance.es_ES
dc.description.sponsorshipThis research has been funded by the Ministerio de Economía, Industria y Competitividad (MAT2016-76739-R (AEI/FEDER, UE) and MAT2015-86078-R), and Departamento de Educación of the Basque Government (IT-630-13). The authors thank SGIker of UPV/EHU for technical and personnel support. This work was benefited from the BL04-MSPD beamline at ALBA. The authors thank Dr. Francois Fauth of the Experiments Division of ALBA for his assistance in situ synchrotron measurements. K. Vidal thanks UPV/EHU for funding.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationMINECO/ICTI2013-2016/MAT2016-76739-Res_ES
dc.relationMINECO/ICTI2013-2016/MAT2015-86078-Res_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccesses_ES
dc.subjectChemical synthesises_ES
dc.subjectOxygen contentes_ES
dc.subjectSOFCes_ES
dc.subjectCathode materiales_ES
dc.subjectImpedance spectroscopyes_ES
dc.titleEffect of the synthesis conditions on the properties of La0.15Sm0.35Sr0.08Ba0.42FeO3 − δ cathode material for SOFCses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.powtec.2017.09.020-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.powtec.2017.09.020es_ES
dc.identifier.e-issn1873-328X-
dc.contributor.funderMinisterio de Economía, Industria y Competitividad (España)es_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderEusko Jaurlaritzaes_ES
dc.contributor.funderUniversidad del País Vascoes_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderALBA Synchrotrones_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003086es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100010198es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
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