Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C

Autores
Grunbaum, Nicolas; Dessemond, L.; Fouletier, J.; Prado, Fernando Daniel; Caneiro, Alberto
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The electrode reaction of the perovskite phases Sr1-xLaxCo0.8Fe0.2O 3-δ (x = 0.1 and 0.6) on Ce0.9Gd0.1O1.95 has been investigated by impedance spectroscopy in the temperature range 600 ≤ T ≤ 800 °C. Thick porous electrodes (t ∼ 20 μm) were sprayed on Ce0.9Gd0.1O1.95 and ac impedance spectra were recorded on symmetrical cells at the equilibrium. The analysis of the complex impedance diagrams clearly indicates the presence of two contributions. The low frequency one was assigned to the gas phase oxygen diffusion through the porous electrode and a finite length diffusion (Warburg) impedance was used to describe the high frequency (HF) data. The polarization resistance of the HF impedance contribution (Rw) is higher for x = 0.1 while the activation energy of Rw is higher for x = 0.6. The variations of Rw versus the La content, temperature and thickness indicate that the Warburg-type impedance contains information of both bulk oxygen diffusion and surface processes. © 2006 Elsevier B.V. All rights reserved.
Fil: Grunbaum, Nicolas. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Dessemond, L.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; Francia
Fil: Fouletier, J.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; Francia
Fil: Prado, Fernando Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Materia
Cobaltites
Electrode Reaction
Impedance Spectroscopy
Mixed Conductors
Sofc
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/72539
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/72539
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °CGrunbaum, NicolasDessemond, L.Fouletier, J.Prado, Fernando DanielCaneiro, AlbertoCobaltitesElectrode ReactionImpedance SpectroscopyMixed ConductorsSofchttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The electrode reaction of the perovskite phases Sr1-xLaxCo0.8Fe0.2O 3-δ (x = 0.1 and 0.6) on Ce0.9Gd0.1O1.95 has been investigated by impedance spectroscopy in the temperature range 600 ≤ T ≤ 800 °C. Thick porous electrodes (t ∼ 20 μm) were sprayed on Ce0.9Gd0.1O1.95 and ac impedance spectra were recorded on symmetrical cells at the equilibrium. The analysis of the complex impedance diagrams clearly indicates the presence of two contributions. The low frequency one was assigned to the gas phase oxygen diffusion through the porous electrode and a finite length diffusion (Warburg) impedance was used to describe the high frequency (HF) data. The polarization resistance of the HF impedance contribution (Rw) is higher for x = 0.1 while the activation energy of Rw is higher for x = 0.6. The variations of Rw versus the La content, temperature and thickness indicate that the Warburg-type impedance contains information of both bulk oxygen diffusion and surface processes. © 2006 Elsevier B.V. All rights reserved.Fil: Grunbaum, Nicolas. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Dessemond, L.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; FranciaFil: Fouletier, J.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; FranciaFil: Prado, Fernando Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaElsevier Science2006-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72539Grunbaum, Nicolas; Dessemond, L.; Fouletier, J.; Prado, Fernando Daniel; Caneiro, Alberto; Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C; Elsevier Science; Solid State Ionics; 177; 9-10; 3-2006; 907-9130167-2738CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssi.2006.02.009info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0167273806000920info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:07:42Zoai:ri.conicet.gov.ar:11336/72539instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:07:43.135CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
title Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
spellingShingle Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
Grunbaum, Nicolas
Cobaltites
Electrode Reaction
Impedance Spectroscopy
Mixed Conductors
Sofc
title_short Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
title_full Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
title_fullStr Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
title_full_unstemmed Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
title_sort Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C
dc.creator.none.fl_str_mv Grunbaum, Nicolas
Dessemond, L.
Fouletier, J.
Prado, Fernando Daniel
Caneiro, Alberto
author Grunbaum, Nicolas
author_facet Grunbaum, Nicolas
Dessemond, L.
Fouletier, J.
Prado, Fernando Daniel
Caneiro, Alberto
author_role author
author2 Dessemond, L.
Fouletier, J.
Prado, Fernando Daniel
Caneiro, Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv Cobaltites
Electrode Reaction
Impedance Spectroscopy
Mixed Conductors
Sofc
topic Cobaltites
Electrode Reaction
Impedance Spectroscopy
Mixed Conductors
Sofc
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The electrode reaction of the perovskite phases Sr1-xLaxCo0.8Fe0.2O 3-δ (x = 0.1 and 0.6) on Ce0.9Gd0.1O1.95 has been investigated by impedance spectroscopy in the temperature range 600 ≤ T ≤ 800 °C. Thick porous electrodes (t ∼ 20 μm) were sprayed on Ce0.9Gd0.1O1.95 and ac impedance spectra were recorded on symmetrical cells at the equilibrium. The analysis of the complex impedance diagrams clearly indicates the presence of two contributions. The low frequency one was assigned to the gas phase oxygen diffusion through the porous electrode and a finite length diffusion (Warburg) impedance was used to describe the high frequency (HF) data. The polarization resistance of the HF impedance contribution (Rw) is higher for x = 0.1 while the activation energy of Rw is higher for x = 0.6. The variations of Rw versus the La content, temperature and thickness indicate that the Warburg-type impedance contains information of both bulk oxygen diffusion and surface processes. © 2006 Elsevier B.V. All rights reserved.
Fil: Grunbaum, Nicolas. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Dessemond, L.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; Francia
Fil: Fouletier, J.. Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces; Francia
Fil: Prado, Fernando Daniel. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
description The electrode reaction of the perovskite phases Sr1-xLaxCo0.8Fe0.2O 3-δ (x = 0.1 and 0.6) on Ce0.9Gd0.1O1.95 has been investigated by impedance spectroscopy in the temperature range 600 ≤ T ≤ 800 °C. Thick porous electrodes (t ∼ 20 μm) were sprayed on Ce0.9Gd0.1O1.95 and ac impedance spectra were recorded on symmetrical cells at the equilibrium. The analysis of the complex impedance diagrams clearly indicates the presence of two contributions. The low frequency one was assigned to the gas phase oxygen diffusion through the porous electrode and a finite length diffusion (Warburg) impedance was used to describe the high frequency (HF) data. The polarization resistance of the HF impedance contribution (Rw) is higher for x = 0.1 while the activation energy of Rw is higher for x = 0.6. The variations of Rw versus the La content, temperature and thickness indicate that the Warburg-type impedance contains information of both bulk oxygen diffusion and surface processes. © 2006 Elsevier B.V. All rights reserved.
publishDate 2006
dc.date.none.fl_str_mv 2006-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/72539
Grunbaum, Nicolas; Dessemond, L.; Fouletier, J.; Prado, Fernando Daniel; Caneiro, Alberto; Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C; Elsevier Science; Solid State Ionics; 177; 9-10; 3-2006; 907-913
0167-2738
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72539
identifier_str_mv Grunbaum, Nicolas; Dessemond, L.; Fouletier, J.; Prado, Fernando Daniel; Caneiro, Alberto; Electrode reaction of Sr1-xLaxCo0.8Fe0.2 O3-δ with x = 0.1 and 0.6 on Ce0.9Gd0.1O1.95 at 600 ≤ T ≤ 800 °C; Elsevier Science; Solid State Ionics; 177; 9-10; 3-2006; 907-913
0167-2738
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ssi.2006.02.009
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0167273806000920
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846781396625915904
score 12.982451

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