Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing

The effects of replacing iron with cobalt and employing either Pechini or spray pyrolysis synthesis routes have been studied for the perovskite system SrFe0.9-xCoxSb0.1O3-δ (x = 0; 0.45; 0.9) to optimise sustainable air electrodes for intermediate-temperature solid oxide cells. The electrochemical p...

Full description

Bibliographic Details
Authors: Zapata-Ramírez, Víctor, Mather, Glenn C., Pérez-Coll, Domingo
Format: article
Publication Date:2024
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381470
Online Access:http://hdl.handle.net/10261/381470
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186531417&doi=10.1016%2fj.jpowsour.2024.234243&partnerID=40&md5=bce295896900f3ca173f3d0d7d22bbe7
Access Level:Open access
Keyword:Cobalt-free air electrode
Rare-earth-free air electrode
Solid oxide cells
Spray pyrolysis
Strontium ferrite
id ES_73d4f3ee47ab8a9eca3c8c813392aaaf
oai_identifier_str oai:digital.csic.es:10261/381470
network_acronym_str ES
network_name_str España
repository_id_str
spelling Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processingZapata-Ramírez, VíctorMather, Glenn C.Pérez-Coll, DomingoCobalt-free air electrodeRare-earth-free air electrodeSolid oxide cellsSpray pyrolysisStrontium ferriteThe effects of replacing iron with cobalt and employing either Pechini or spray pyrolysis synthesis routes have been studied for the perovskite system SrFe0.9-xCoxSb0.1O3-δ (x = 0; 0.45; 0.9) to optimise sustainable air electrodes for intermediate-temperature solid oxide cells. The electrochemical performance of Pechini-prepared compositions improves with increasing cobalt content, attributable to higher electronic conductivity and oxygen-vacancy concentration, and lower processing temperature from 1300 ᵒC, for SrFe0.9Sb0.1O3-δ, to 1200 and 1100 ᵒC, for SrFe0.45Co0.45Sb0.1O3−δ and SrCo0.9Sb0.1O3−δ, respectively, with SrCo0.9Sb0.1O3-δ exhibiting an area specific resistance (ASR) of 0.084 Ω cm2 at 700 °C. The electrochemical stability of Fe-containing Pechini-based compositions is impaired, most likely due to a higher processing temperature. However, the very low processing temperature of 800 °C for spray-pyrolysed electrodes produces similar electrochemical performances for Co-containing and Co-free compositions (ASR≈ 0.065 Ω cm2 at 700 °C for SrFe0.9Sb0.1O3-δ) and high electrochemical stability with practically unaltered electrode polarisation resistance on thermal cycling. © 2024 The AuthorsThe authors acknowledge the project PID2021-123308OB-I00, funded by MCIN/AEI/10.13039/501100011033 in Spain and "ERDF A way of making Europe", by the European Union.Data will be made available on requestPeer reviewedElsevier BVAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/381470https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186531417&doi=10.1016%2fj.jpowsour.2024.234243&partnerID=40&md5=bce295896900f3ca173f3d0d7d22bbe7reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123308OB-I00Journal of Power Sourceshttps://doi.org/10.1016/j.jpowsour.2024.234243Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3814702026-05-22T06:33:51Z
dc.title.none.fl_str_mv Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
title Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
spellingShingle Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
Zapata-Ramírez, Víctor
Cobalt-free air electrode
Rare-earth-free air electrode
Solid oxide cells
Spray pyrolysis
Strontium ferrite
title_short Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
title_full Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
title_fullStr Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
title_full_unstemmed Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
title_sort Optimisation of electrochemical performance of Sr(Fe,Sb)O3-δ air electrodes for intermediate-temperature solid oxide cells through spray-pyrolysis processing
dc.creator.none.fl_str_mv Zapata-Ramírez, Víctor
Mather, Glenn C.
Pérez-Coll, Domingo
author Zapata-Ramírez, Víctor
author_facet Zapata-Ramírez, Víctor
Mather, Glenn C.
Pérez-Coll, Domingo
author_role author
author2 Mather, Glenn C.
Pérez-Coll, Domingo
author2_role author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Cobalt-free air electrode
Rare-earth-free air electrode
Solid oxide cells
Spray pyrolysis
Strontium ferrite
topic Cobalt-free air electrode
Rare-earth-free air electrode
Solid oxide cells
Spray pyrolysis
Strontium ferrite
description The effects of replacing iron with cobalt and employing either Pechini or spray pyrolysis synthesis routes have been studied for the perovskite system SrFe0.9-xCoxSb0.1O3-δ (x = 0; 0.45; 0.9) to optimise sustainable air electrodes for intermediate-temperature solid oxide cells. The electrochemical performance of Pechini-prepared compositions improves with increasing cobalt content, attributable to higher electronic conductivity and oxygen-vacancy concentration, and lower processing temperature from 1300 ᵒC, for SrFe0.9Sb0.1O3-δ, to 1200 and 1100 ᵒC, for SrFe0.45Co0.45Sb0.1O3−δ and SrCo0.9Sb0.1O3−δ, respectively, with SrCo0.9Sb0.1O3-δ exhibiting an area specific resistance (ASR) of 0.084 Ω cm2 at 700 °C. The electrochemical stability of Fe-containing Pechini-based compositions is impaired, most likely due to a higher processing temperature. However, the very low processing temperature of 800 °C for spray-pyrolysed electrodes produces similar electrochemical performances for Co-containing and Co-free compositions (ASR≈ 0.065 Ω cm2 at 700 °C for SrFe0.9Sb0.1O3-δ) and high electrochemical stability with practically unaltered electrode polarisation resistance on thermal cycling. © 2024 The Authors
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/381470
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186531417&doi=10.1016%2fj.jpowsour.2024.234243&partnerID=40&md5=bce295896900f3ca173f3d0d7d22bbe7
url http://hdl.handle.net/10261/381470
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85186531417&doi=10.1016%2fj.jpowsour.2024.234243&partnerID=40&md5=bce295896900f3ca173f3d0d7d22bbe7
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123308OB-I00
Journal of Power Sources
https://doi.org/10.1016/j.jpowsour.2024.234243
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410838202286080
score 15.81155

Similar Items