Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor

The effect of partial substitution of Ce by Pr ions in BaCe1−xPrxO3−δ (0 ≤ x ≤ 0.8) perovskite was studied to improve the proton conductor capability, including transport and mechanical properties, thermodynamic stability, CO2 tolerance and sintering. The stability under oxidizing and reducing (5% H...

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Detalles Bibliográficos
Autores: Basbus, Juan Felipe, Moreno Gomez, Mario Fredy, Caneiro, Alberto, Mogni, Liliana Verónica
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/180618
Acceso en línea:http://hdl.handle.net/11336/180618
Access Level:acceso abierto
Palabra clave:PC SOFC
XRD
SEM
TG
SPT
EIS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
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network_name_str Argentina
repository_id_str
spelling Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductorBasbus, Juan FelipeMoreno Gomez, Mario FredyCaneiro, AlbertoMogni, Liliana VerónicaPC SOFCXRDSEMTGSPTEIShttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The effect of partial substitution of Ce by Pr ions in BaCe1−xPrxO3−δ (0 ≤ x ≤ 0.8) perovskite was studied to improve the proton conductor capability, including transport and mechanical properties, thermodynamic stability, CO2 tolerance and sintering. The stability under oxidizing and reducing (5% H2/Ar and 10% CO2/Ar) atmospheres was evaluated by thermogravimetry. The conductivity was studied by Electrical Impedance Spectroscopy (EIS) under wet (2% H2O) flow of 20% O2/Ar and 10% H2/Ar as a function of temperature between 100 and 600◦C. The mechanical stiffness and fracture load were measured by a Small Punch Testing (SPT) method at room temperature. It was found that the Pr doping improves the sintering capacity, and increases the conductivity. However, the stability under reducing and carbon dioxide atmospheres decreases. A correlation between electrical conductivity, CO2 tolerance, thermodynamic stability under reducing atmospheres and mechanical properties was found. Dense BaCe0.8Pr0.2O3−δ obtained at 1350◦C presents low porosity (5 ± 1%), an improvement of 30% in stiffness and 56% in fracture load, good stability under oxidizing and reducing atmosphere, slightly higher CO2 tolerance range and an increase of electrical conductivity respect to that of the un-doped compound.Fil: Basbus, Juan Felipe. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Moreno Gomez, Mario Fredy. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Caneiro, Alberto. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mogni, Liliana Verónica. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElectrochemical Society2014-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/180618Basbus, Juan Felipe; Moreno Gomez, Mario Fredy; Caneiro, Alberto; Mogni, Liliana Verónica; Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor; Electrochemical Society; Journal of the Electrochemical Society; 161; 10; 7-2014; 969-9760013-4651CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1149/2.0181410jesinfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/2.0181410jesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:32:27Zoai:ri.conicet.gov.ar:11336/180618instacron: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:34982024-05-08 13:32:27.412CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
title Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
spellingShingle Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
Basbus, Juan Felipe
PC SOFC
XRD
SEM
TG
SPT
EIS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
title_short Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
title_full Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
title_fullStr Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
title_full_unstemmed Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
title_sort Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor
dc.creator.none.fl_str_mv Basbus, Juan Felipe
Moreno Gomez, Mario Fredy
Caneiro, Alberto
Mogni, Liliana Verónica
author Basbus, Juan Felipe
author_facet Basbus, Juan Felipe
Moreno Gomez, Mario Fredy
Caneiro, Alberto
Mogni, Liliana Verónica
author_role author
author2 Moreno Gomez, Mario Fredy
Caneiro, Alberto
Mogni, Liliana Verónica
author2_role author
author
author
dc.subject.none.fl_str_mv PC SOFC
XRD
SEM
TG
SPT
EIS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
topic PC SOFC
XRD
SEM
TG
SPT
EIS
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
description The effect of partial substitution of Ce by Pr ions in BaCe1−xPrxO3−δ (0 ≤ x ≤ 0.8) perovskite was studied to improve the proton conductor capability, including transport and mechanical properties, thermodynamic stability, CO2 tolerance and sintering. The stability under oxidizing and reducing (5% H2/Ar and 10% CO2/Ar) atmospheres was evaluated by thermogravimetry. The conductivity was studied by Electrical Impedance Spectroscopy (EIS) under wet (2% H2O) flow of 20% O2/Ar and 10% H2/Ar as a function of temperature between 100 and 600◦C. The mechanical stiffness and fracture load were measured by a Small Punch Testing (SPT) method at room temperature. It was found that the Pr doping improves the sintering capacity, and increases the conductivity. However, the stability under reducing and carbon dioxide atmospheres decreases. A correlation between electrical conductivity, CO2 tolerance, thermodynamic stability under reducing atmospheres and mechanical properties was found. Dense BaCe0.8Pr0.2O3−δ obtained at 1350◦C presents low porosity (5 ± 1%), an improvement of 30% in stiffness and 56% in fracture load, good stability under oxidizing and reducing atmosphere, slightly higher CO2 tolerance range and an increase of electrical conductivity respect to that of the un-doped compound.
publishDate 2014
dc.date.none.fl_str_mv 2014-07
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/11336/180618
Basbus, Juan Felipe; Moreno Gomez, Mario Fredy; Caneiro, Alberto; Mogni, Liliana Verónica; Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor; Electrochemical Society; Journal of the Electrochemical Society; 161; 10; 7-2014; 969-976
0013-4651
CONICET Digital
CONICET
url http://hdl.handle.net/11336/180618
identifier_str_mv Basbus, Juan Felipe; Moreno Gomez, Mario Fredy; Caneiro, Alberto; Mogni, Liliana Verónica; Effect of Pr-doping on structural, electrical, thermodynamic, and mechanical properties of BaCeO3-d as proton conductor; Electrochemical Society; Journal of the Electrochemical Society; 161; 10; 7-2014; 969-976
0013-4651
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1149/2.0181410jes
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/2.0181410jes
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
dc.publisher.none.fl_str_mv Electrochemical Society
publisher.none.fl_str_mv Electrochemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.81155

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