High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials

Autores
Soldati, Analía Leticia; Baque, Laura Cecilia; Troiani, Horacio Esteban; Cotaro, Carlos; Schreiber, Anja; Caneiro, Alberto; Serquis, Adriana Cristina
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A Focused Ion Beam (FIB)/lift-out technique was used to prepare site-specific thin samplesof the cathode/electrolyte interface of Intermediate Temperature Solid Oxide Fuel Cells (ITSOFC)materials. The cathode under study was a nanostructured perovskite of compositionLa0.4Sr0.6Co0.8Fe0.2O3-d (LSCF) deposited by spin coating on a Ce0.9Gd0.1O2-d (CGO) supportingsubstrate. We compared the results for a 15 mm and a 5 mmthickness cathode layers, beforeand after a thermal treatment of 1000 h at 500 C, with the aim of simulating operationconditions. Both, Transmission (TEM) and Scanning (SEM) Electron Microscopy, coupledwith Energy Dispersive Spectroscopy (EDS) systems, were used to characterize thecomposition and nanostructure at both sides of the cathode/electrolyte interface. To ourknowledge, this is the first time that a semi-coherent interface between LSCF and CGO wasobserved by Electron Diffraction as well as by High Resolution TEM in many points at theinterfacial boundary. A large difference in total contact area was observed between thethickest and the thinnest cathode layers, despite they present the same composition andnano sized structure. The real contact area in the 5 mm cathode sample is around 50% lessthan in the 15 mm sample due to the presence of pores at the interface. This observationmay partially explain the difference in resistivity observed for these two half cellsassemblies. On the other side, no differences were found comparing composition andnanostructure at the interface before and after the thermal treatment. Thus, this studybecomes fundamental to understand the role played by the interface for improving theperformance of IT-SOFC under long time operation conditions: a necessary premise for itsreal application.
Fil: Soldati, Analía Leticia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Baque, Laura Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Troiani, Horacio Esteban. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Cotaro, Carlos. Centre National de la Recherche Scientifique; Francia
Fil: Schreiber, Anja. No especifíca;
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Serquis, Adriana Cristina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
Materia
FIB
TEM
INTERFACE
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:11336/281034
Acceder
id CONICETDig_8e7a4b3b0e6e0e8e8dcb73c30d0a319c
oai_identifier_str oai:ri.conicet.gov.ar:11336/281034
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materialsSoldati, Analía LeticiaBaque, Laura CeciliaTroiani, Horacio EstebanCotaro, CarlosSchreiber, AnjaCaneiro, AlbertoSerquis, Adriana CristinaFIBTEMINTERFACESOFChttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2A Focused Ion Beam (FIB)/lift-out technique was used to prepare site-specific thin samplesof the cathode/electrolyte interface of Intermediate Temperature Solid Oxide Fuel Cells (ITSOFC)materials. The cathode under study was a nanostructured perovskite of compositionLa0.4Sr0.6Co0.8Fe0.2O3-d (LSCF) deposited by spin coating on a Ce0.9Gd0.1O2-d (CGO) supportingsubstrate. We compared the results for a 15 mm and a 5 mmthickness cathode layers, beforeand after a thermal treatment of 1000 h at 500 C, with the aim of simulating operationconditions. Both, Transmission (TEM) and Scanning (SEM) Electron Microscopy, coupledwith Energy Dispersive Spectroscopy (EDS) systems, were used to characterize thecomposition and nanostructure at both sides of the cathode/electrolyte interface. To ourknowledge, this is the first time that a semi-coherent interface between LSCF and CGO wasobserved by Electron Diffraction as well as by High Resolution TEM in many points at theinterfacial boundary. A large difference in total contact area was observed between thethickest and the thinnest cathode layers, despite they present the same composition andnano sized structure. The real contact area in the 5 mm cathode sample is around 50% lessthan in the 15 mm sample due to the presence of pores at the interface. This observationmay partially explain the difference in resistivity observed for these two half cellsassemblies. On the other side, no differences were found comparing composition andnanostructure at the interface before and after the thermal treatment. Thus, this studybecomes fundamental to understand the role played by the interface for improving theperformance of IT-SOFC under long time operation conditions: a necessary premise for itsreal application.Fil: Soldati, Analía Leticia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Baque, Laura Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Troiani, Horacio Esteban. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Cotaro, Carlos. Centre National de la Recherche Scientifique; FranciaFil: Schreiber, Anja. No especifíca;Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Serquis, Adriana Cristina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; ArgentinaPergamon-Elsevier Science Ltd2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/281034Soldati, Analía Leticia; Baque, Laura Cecilia; Troiani, Horacio Esteban; Cotaro, Carlos; Schreiber, Anja; et al.; High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 4-2011; 9180-91880360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319911009864info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.04.121info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-02-26T10:08:08Zoai:ri.conicet.gov.ar:11336/281034instacron: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:34982026-02-26 10:08:08.244CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
title High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
spellingShingle High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
Soldati, Analía Leticia
FIB
TEM
INTERFACE
SOFC
title_short High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
title_full High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
title_fullStr High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
title_full_unstemmed High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
title_sort High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials
dc.creator.none.fl_str_mv Soldati, Analía Leticia
Baque, Laura Cecilia
Troiani, Horacio Esteban
Cotaro, Carlos
Schreiber, Anja
Caneiro, Alberto
Serquis, Adriana Cristina
author Soldati, Analía Leticia
author_facet Soldati, Analía Leticia
Baque, Laura Cecilia
Troiani, Horacio Esteban
Cotaro, Carlos
Schreiber, Anja
Caneiro, Alberto
Serquis, Adriana Cristina
author_role author
author2 Baque, Laura Cecilia
Troiani, Horacio Esteban
Cotaro, Carlos
Schreiber, Anja
Caneiro, Alberto
Serquis, Adriana Cristina
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv FIB
TEM
INTERFACE
SOFC
topic FIB
TEM
INTERFACE
SOFC
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A Focused Ion Beam (FIB)/lift-out technique was used to prepare site-specific thin samplesof the cathode/electrolyte interface of Intermediate Temperature Solid Oxide Fuel Cells (ITSOFC)materials. The cathode under study was a nanostructured perovskite of compositionLa0.4Sr0.6Co0.8Fe0.2O3-d (LSCF) deposited by spin coating on a Ce0.9Gd0.1O2-d (CGO) supportingsubstrate. We compared the results for a 15 mm and a 5 mmthickness cathode layers, beforeand after a thermal treatment of 1000 h at 500 C, with the aim of simulating operationconditions. Both, Transmission (TEM) and Scanning (SEM) Electron Microscopy, coupledwith Energy Dispersive Spectroscopy (EDS) systems, were used to characterize thecomposition and nanostructure at both sides of the cathode/electrolyte interface. To ourknowledge, this is the first time that a semi-coherent interface between LSCF and CGO wasobserved by Electron Diffraction as well as by High Resolution TEM in many points at theinterfacial boundary. A large difference in total contact area was observed between thethickest and the thinnest cathode layers, despite they present the same composition andnano sized structure. The real contact area in the 5 mm cathode sample is around 50% lessthan in the 15 mm sample due to the presence of pores at the interface. This observationmay partially explain the difference in resistivity observed for these two half cellsassemblies. On the other side, no differences were found comparing composition andnanostructure at the interface before and after the thermal treatment. Thus, this studybecomes fundamental to understand the role played by the interface for improving theperformance of IT-SOFC under long time operation conditions: a necessary premise for itsreal application.
Fil: Soldati, Analía Leticia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Baque, Laura Cecilia. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Troiani, Horacio Esteban. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Cotaro, Carlos. Centre National de la Recherche Scientifique; Francia
Fil: Schreiber, Anja. No especifíca;
Fil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina
Fil: Serquis, Adriana Cristina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
description A Focused Ion Beam (FIB)/lift-out technique was used to prepare site-specific thin samplesof the cathode/electrolyte interface of Intermediate Temperature Solid Oxide Fuel Cells (ITSOFC)materials. The cathode under study was a nanostructured perovskite of compositionLa0.4Sr0.6Co0.8Fe0.2O3-d (LSCF) deposited by spin coating on a Ce0.9Gd0.1O2-d (CGO) supportingsubstrate. We compared the results for a 15 mm and a 5 mmthickness cathode layers, beforeand after a thermal treatment of 1000 h at 500 C, with the aim of simulating operationconditions. Both, Transmission (TEM) and Scanning (SEM) Electron Microscopy, coupledwith Energy Dispersive Spectroscopy (EDS) systems, were used to characterize thecomposition and nanostructure at both sides of the cathode/electrolyte interface. To ourknowledge, this is the first time that a semi-coherent interface between LSCF and CGO wasobserved by Electron Diffraction as well as by High Resolution TEM in many points at theinterfacial boundary. A large difference in total contact area was observed between thethickest and the thinnest cathode layers, despite they present the same composition andnano sized structure. The real contact area in the 5 mm cathode sample is around 50% lessthan in the 15 mm sample due to the presence of pores at the interface. This observationmay partially explain the difference in resistivity observed for these two half cellsassemblies. On the other side, no differences were found comparing composition andnanostructure at the interface before and after the thermal treatment. Thus, this studybecomes fundamental to understand the role played by the interface for improving theperformance of IT-SOFC under long time operation conditions: a necessary premise for itsreal application.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
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/11336/281034
Soldati, Analía Leticia; Baque, Laura Cecilia; Troiani, Horacio Esteban; Cotaro, Carlos; Schreiber, Anja; et al.; High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 4-2011; 9180-9188
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/281034
identifier_str_mv Soldati, Analía Leticia; Baque, Laura Cecilia; Troiani, Horacio Esteban; Cotaro, Carlos; Schreiber, Anja; et al.; High resolution FIB-TEM and FIB-SEM characterization of electrode/electrolyte interfaces in solid oxide fuel cells materials; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 36; 15; 4-2011; 9180-9188
0360-3199
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0360319911009864
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2011.04.121
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
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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
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score 13.176822

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