Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells

Autores
Zhang, Shan-Lin; Wang, Hongqian; Lu, Matthew Y.; Zhang, Ai-Ping; Mogni, Liliana Verónica; Liu, Qinyuan; Li, Cheng-Xin; Li, Chang-Jiu; Barnett, Scott A.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A key need in the development of solid oxide cells (SOCs) is for electrodes that promote fast oxygen reduction and oxygen evolution reactions at reduced operating temperature (≤700 °C), with sufficient durability to allow operation over desired 40 000 h lifetimes. A wide range of electrode materials have been investigated, with some providing resistance low enough for cell operation below 700 °C, but it is generally found that the electrode performance degrades over time. Here we demonstrate an oxygen electrode material, Sr(Ti0.3Fe0.7-xCox)O3-δ (STFC), that provides a unique combination of excellent oxygen electrode performance and long-term stability. The addition of a relatively small amount of Co to Sr(Ti0.3Fe0.7)O3-δ, e.g., x = 0.07, reduces the electrode polarization resistance by >2 times. The STFC electrode yields stable performance in both fuel cell and electrolysis modes at 1 A cm-2. The fundamental oxygen diffusion and surface exchange coefficients of STFC are determined, and shown to be substantially better than those of La0.6Sr0.4Co0.2Fe0.8O3-δ, the most widely used SOC oxygen electrode material. While other electrode materials have been shown to exhibit better oxygen transport coefficients than STFC, they do not match its stability.
Fil: Zhang, Shan-Lin. Northwestern University; Estados Unidos. Xi'an Jiaotong University; República de China
Fil: Wang, Hongqian. Northwestern University; Estados Unidos
Fil: Lu, Matthew Y.. Northwestern University; Estados Unidos
Fil: Zhang, Ai-Ping. Xi'an Jiaotong University; República de China
Fil: Mogni, Liliana Verónica. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Liu, Qinyuan. Northwestern University; Estados Unidos
Fil: Li, Cheng-Xin. Xi'an Jiaotong University; República de China
Fil: Li, Chang-Jiu. Xi'an Jiaotong University; República de China
Fil: Barnett, Scott A.. Northwestern University; Estados Unidos
Materia
Oxygen reduction reaction
SOFC
cathode
titanates
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:11336/99985
Acceder
id CONICETDig_48ac28de1587655e4ff308398ecf08dd
oai_identifier_str oai:ri.conicet.gov.ar:11336/99985
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cellsZhang, Shan-LinWang, HongqianLu, Matthew Y.Zhang, Ai-PingMogni, Liliana VerónicaLiu, QinyuanLi, Cheng-XinLi, Chang-JiuBarnett, Scott A.Oxygen reduction reactionSOFCcathodetitanateshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2A key need in the development of solid oxide cells (SOCs) is for electrodes that promote fast oxygen reduction and oxygen evolution reactions at reduced operating temperature (≤700 °C), with sufficient durability to allow operation over desired 40 000 h lifetimes. A wide range of electrode materials have been investigated, with some providing resistance low enough for cell operation below 700 °C, but it is generally found that the electrode performance degrades over time. Here we demonstrate an oxygen electrode material, Sr(Ti0.3Fe0.7-xCox)O3-δ (STFC), that provides a unique combination of excellent oxygen electrode performance and long-term stability. The addition of a relatively small amount of Co to Sr(Ti0.3Fe0.7)O3-δ, e.g., x = 0.07, reduces the electrode polarization resistance by >2 times. The STFC electrode yields stable performance in both fuel cell and electrolysis modes at 1 A cm-2. The fundamental oxygen diffusion and surface exchange coefficients of STFC are determined, and shown to be substantially better than those of La0.6Sr0.4Co0.2Fe0.8O3-δ, the most widely used SOC oxygen electrode material. While other electrode materials have been shown to exhibit better oxygen transport coefficients than STFC, they do not match its stability.Fil: Zhang, Shan-Lin. Northwestern University; Estados Unidos. Xi'an Jiaotong University; República de ChinaFil: Wang, Hongqian. Northwestern University; Estados UnidosFil: Lu, Matthew Y.. Northwestern University; Estados UnidosFil: Zhang, Ai-Ping. Xi'an Jiaotong University; República de ChinaFil: Mogni, Liliana Verónica. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Liu, Qinyuan. Northwestern University; Estados UnidosFil: Li, Cheng-Xin. Xi'an Jiaotong University; República de ChinaFil: Li, Chang-Jiu. Xi'an Jiaotong University; República de ChinaFil: Barnett, Scott A.. Northwestern University; Estados UnidosRoyal Society of Chemistry2018-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99985Zhang, Shan-Lin; Wang, Hongqian; Lu, Matthew Y.; Zhang, Ai-Ping; Mogni, Liliana Verónica; et al.; Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells; Royal Society of Chemistry; Energy & Environmental Science; 11; 7; 7-2018; 1870-18791754-5692CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C8EE00449Hinfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/EE/C8EE00449Hinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:15:39Zoai:ri.conicet.gov.ar:11336/99985instacron: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:34982025-10-15 15:15:39.997CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
title Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
spellingShingle Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
Zhang, Shan-Lin
Oxygen reduction reaction
SOFC
cathode
titanates
title_short Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
title_full Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
title_fullStr Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
title_full_unstemmed Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
title_sort Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells
dc.creator.none.fl_str_mv Zhang, Shan-Lin
Wang, Hongqian
Lu, Matthew Y.
Zhang, Ai-Ping
Mogni, Liliana Verónica
Liu, Qinyuan
Li, Cheng-Xin
Li, Chang-Jiu
Barnett, Scott A.
author Zhang, Shan-Lin
author_facet Zhang, Shan-Lin
Wang, Hongqian
Lu, Matthew Y.
Zhang, Ai-Ping
Mogni, Liliana Verónica
Liu, Qinyuan
Li, Cheng-Xin
Li, Chang-Jiu
Barnett, Scott A.
author_role author
author2 Wang, Hongqian
Lu, Matthew Y.
Zhang, Ai-Ping
Mogni, Liliana Verónica
Liu, Qinyuan
Li, Cheng-Xin
Li, Chang-Jiu
Barnett, Scott A.
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Oxygen reduction reaction
SOFC
cathode
titanates
topic Oxygen reduction reaction
SOFC
cathode
titanates
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv A key need in the development of solid oxide cells (SOCs) is for electrodes that promote fast oxygen reduction and oxygen evolution reactions at reduced operating temperature (≤700 °C), with sufficient durability to allow operation over desired 40 000 h lifetimes. A wide range of electrode materials have been investigated, with some providing resistance low enough for cell operation below 700 °C, but it is generally found that the electrode performance degrades over time. Here we demonstrate an oxygen electrode material, Sr(Ti0.3Fe0.7-xCox)O3-δ (STFC), that provides a unique combination of excellent oxygen electrode performance and long-term stability. The addition of a relatively small amount of Co to Sr(Ti0.3Fe0.7)O3-δ, e.g., x = 0.07, reduces the electrode polarization resistance by >2 times. The STFC electrode yields stable performance in both fuel cell and electrolysis modes at 1 A cm-2. The fundamental oxygen diffusion and surface exchange coefficients of STFC are determined, and shown to be substantially better than those of La0.6Sr0.4Co0.2Fe0.8O3-δ, the most widely used SOC oxygen electrode material. While other electrode materials have been shown to exhibit better oxygen transport coefficients than STFC, they do not match its stability.
Fil: Zhang, Shan-Lin. Northwestern University; Estados Unidos. Xi'an Jiaotong University; República de China
Fil: Wang, Hongqian. Northwestern University; Estados Unidos
Fil: Lu, Matthew Y.. Northwestern University; Estados Unidos
Fil: Zhang, Ai-Ping. Xi'an Jiaotong University; República de China
Fil: Mogni, Liliana Verónica. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Liu, Qinyuan. Northwestern University; Estados Unidos
Fil: Li, Cheng-Xin. Xi'an Jiaotong University; República de China
Fil: Li, Chang-Jiu. Xi'an Jiaotong University; República de China
Fil: Barnett, Scott A.. Northwestern University; Estados Unidos
description A key need in the development of solid oxide cells (SOCs) is for electrodes that promote fast oxygen reduction and oxygen evolution reactions at reduced operating temperature (≤700 °C), with sufficient durability to allow operation over desired 40 000 h lifetimes. A wide range of electrode materials have been investigated, with some providing resistance low enough for cell operation below 700 °C, but it is generally found that the electrode performance degrades over time. Here we demonstrate an oxygen electrode material, Sr(Ti0.3Fe0.7-xCox)O3-δ (STFC), that provides a unique combination of excellent oxygen electrode performance and long-term stability. The addition of a relatively small amount of Co to Sr(Ti0.3Fe0.7)O3-δ, e.g., x = 0.07, reduces the electrode polarization resistance by >2 times. The STFC electrode yields stable performance in both fuel cell and electrolysis modes at 1 A cm-2. The fundamental oxygen diffusion and surface exchange coefficients of STFC are determined, and shown to be substantially better than those of La0.6Sr0.4Co0.2Fe0.8O3-δ, the most widely used SOC oxygen electrode material. While other electrode materials have been shown to exhibit better oxygen transport coefficients than STFC, they do not match its stability.
publishDate 2018
dc.date.none.fl_str_mv 2018-07
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/11336/99985
Zhang, Shan-Lin; Wang, Hongqian; Lu, Matthew Y.; Zhang, Ai-Ping; Mogni, Liliana Verónica; et al.; Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells; Royal Society of Chemistry; Energy & Environmental Science; 11; 7; 7-2018; 1870-1879
1754-5692
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99985
identifier_str_mv Zhang, Shan-Lin; Wang, Hongqian; Lu, Matthew Y.; Zhang, Ai-Ping; Mogni, Liliana Verónica; et al.; Cobalt-substituted SrTi0.3Fe0.7O3-: δ a stable high-performance oxygen electrode material for intermediate-temperature solid oxide electrochemical cells; Royal Society of Chemistry; Energy & Environmental Science; 11; 7; 7-2018; 1870-1879
1754-5692
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C8EE00449H
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/EE/C8EE00449H
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
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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 12.891075

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