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dc.contributor.authorOrtega-San-Martín, L.es_ES
dc.contributor.authorMorán-Ruiz, Aroaes_ES
dc.contributor.authorWain-Martin, A.es_ES
dc.contributor.authorVidal, Karmelees_ES
dc.contributor.authorLarrañaga, Aitores_ES
dc.contributor.authorLaguna-Bercero, M. A.es_ES
dc.contributor.authorArriortua, María Isabeles_ES
dc.date.accessioned2019-04-25T10:09:23Z-
dc.date.available2019-04-25T10:09:23Z-
dc.date.issued2018-
dc.identifier.citationCeramics International 44(2): 2240-2248 (2018)es_ES
dc.identifier.issn0272-8842-
dc.identifier.urihttp://hdl.handle.net/10261/180541-
dc.description.abstractA series of chromite perovskites with the general formula Ln1−xMxCr0.9Ni0.1O3 (Ln = La and/or Nd; M = Sr and/or Ca; x ≤ 0.25) has been prepared by three combustion synthesis routes using a different combustible substance each time: glycine, urea and sucrose. In order to isolate the effect of divalent dopant concentration from the A cation steric effects, the whole group has a fixed mean A cation radius, < rA> ≈ 1.22 Å, and cation size disorder, σ2(rA) ≈ 0.0001 Å2, but variable doping x. Their crystal structure, microstructure, electrical properties and expansion coefficients have been investigated on the basis of their possible use as anode materials for intermediate temperature solid oxide fuel cells (SOFC). Cell parameters, grain sizes, expansion coefficients and conductivities all are found to be dependent on x and the combustible substance used. The most interesting relationship is the negative dependence of the conductivity with x under H2 atmosphere: conductivity decreases with doping which is the opposite to the expected behavior for a p-type doped perovskites and has not been reported before.es_ES
dc.description.sponsorshipThis research has been funded by the Ministerio de Economía y Competitividad (MAT2016-76739-R), the Feder program of the European Union and Dpto. Educación, Política Lingüística y Cultura of the Basque Government (IT-630-13). The authors thank for technical and human support provided by SGIker of UPV/EHU. L.Ortega-San-Martin acknowledges Departamento de Ciencias, PUCP (Peru), for funding two shorts stays at UPV/EHU.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationMINECO/ICTI2013-2016/MAT2016-76739-Res_ES
dc.rightsopenAccesses_ES
dc.subjectChemical synthesises_ES
dc.subjectElectrical conductivityes_ES
dc.subjectSOFCes_ES
dc.subjectAnodees_ES
dc.titleCombustion synthesis and characterization of Ln1−xMxCr0.9Ni0.1O3 (Ln = La and/or Nd; M = Sr and/or Ca; x ≤ 0.25) perovskites for SOFCs anodeses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.ceramint.2017.10.182-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.ceramint.2017.10.182es_ES
dc.identifier.e-issn1873-3956-
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderEusko Jaurlaritzaes_ES
dc.contributor.funderConsejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (Perú)es_ES
dc.contributor.funderUniversidad del País Vascoes_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/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100010747es_ES
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