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dc.contributor.author
Baque, Laura Cecilia
dc.contributor.author
Soldati, Analía Leticia
dc.contributor.author
Troiani, Horacio Esteban
dc.contributor.author
Serquis, Adriana Cristina
dc.date.available
2018-01-09T22:12:02Z
dc.date.issued
2014-10
dc.identifier.citation
Soldati, Analía Leticia; Serquis, Adriana Cristina; Troiani, Horacio Esteban; Baque, Laura Cecilia; Effect of Cation Demixing on the Electrochemical Performance of LSCFO Cathodes for SOFCs; Electrochemical Society; ECS Transactions; 64; 2; 10-2014; 11-16
dc.identifier.issn
1938-6737
dc.identifier.uri
http://hdl.handle.net/11336/32776
dc.description.abstract
The commercialization of Solid oxide fuel cells (SOFCs) is still hindered by their cost and long term degradation. One of the most common degradation mechanisms of La1-xSrxFe1-yCoyO3-d (LSCFO) cathodes reported in literature is element demixing. In this work, the degradation of LSCFO cathodes deposited on Ce1-xGdxO2-d electrolytes at 800°C in air for 50 h was investigated by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). EIS spectra from LSCFO cathodes present two contributions: one at high frequency and another at low frequency. The high frequency contribution remains invariable during the ageing treatment while the low frequency contribution continuously increases. The formation of small segregates was observed after the ageing treatment. Energy dispersive spectroscopy analysis reveals that these segregates were particularly poor in Sr.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Electrochemical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Solid Oxide Fuel Cell
dc.subject
Degradation
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Microscopy
dc.subject
Electrochemical Impedance Spectroscopy
dc.subject.classification
Nano-materiales
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Nanotecnología
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Effect of Cation Demixing on the Electrochemical Performance of LSCFO Cathodes for SOFCs
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-01-05T16:25:21Z
dc.journal.volume
64
dc.journal.number
2
dc.journal.pagination
11-16
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Baque, Laura Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Soldati, Analía Leticia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Troiani, Horacio Esteban. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Serquis, Adriana Cristina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
ECS Transactions
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1149/06402.0011ecst
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ecst.ecsdl.org/content/64/2/11


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