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Effect of the synthesis conditions on the properties of La0.15Sm0.35Sr0.08Ba0.42FeO3 − δ cathode material for SOFCs
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dc.contributor.author | Vidal, K. | |
dc.contributor.author | Larrañaga, A. | |
dc.contributor.author | Morán-Ruiz, A. | |
dc.contributor.author | Laguna-Bercero, M. A. | |
dc.contributor.author | Baker, R. T. | |
dc.contributor.author | Arriortua, M. I. | |
dc.date.accessioned | 2018-09-12T23:35:52Z | |
dc.date.available | 2018-09-12T23:35:52Z | |
dc.date.issued | 2017-12 | |
dc.identifier | 251061112 | |
dc.identifier | 0296922c-623c-454d-b888-541dcca16a3c | |
dc.identifier | 85029418831 | |
dc.identifier | 000413880100016 | |
dc.identifier.citation | Vidal , K , Larrañaga , A , Morán-Ruiz , A , Laguna-Bercero , M A , Baker , R T & Arriortua , M I 2017 , ' Effect of the synthesis conditions on the properties of La 0.15 Sm 0.35 Sr 0.08 Ba 0.42 FeO 3 − δ cathode material for SOFCs ' , Powder Technology , vol. 322 , pp. 131-139 . https://doi.org/10.1016/j.powtec.2017.09.020 | en |
dc.identifier.issn | 0032-5910 | |
dc.identifier.other | RIS: urn:CFDA6B9B23B8BB3AA9271E912D1CE53D | |
dc.identifier.other | ORCID: /0000-0002-3304-3280/work/59464803 | |
dc.identifier.uri | https://hdl.handle.net/10023/16020 | |
dc.description | This 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). K. Vidal thanks UPV/EHU for funding. | en |
dc.description.abstract | The 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. | |
dc.format.extent | 9 | |
dc.format.extent | 1113697 | |
dc.language.iso | eng | |
dc.relation.ispartof | Powder Technology | en |
dc.subject | Chemical synthesis | en |
dc.subject | Oxygen content | en |
dc.subject | Cathode material | en |
dc.subject | SOFC | en |
dc.subject | Impedance spectroscopy | en |
dc.subject | QD Chemistry | en |
dc.subject | NDAS | en |
dc.subject.lcc | QD | en |
dc.title | Effect of the synthesis conditions on the properties of La0.15Sm0.35Sr0.08Ba0.42FeO3 − δ cathode material for SOFCs | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.contributor.institution | University of St Andrews. St Andrews Sustainability Institute | en |
dc.contributor.institution | University of St Andrews. EaSTCHEM | en |
dc.identifier.doi | 10.1016/j.powtec.2017.09.020 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2018-09-13 |
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