The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes
The effect of the pore-former used in the Ni-YSZ fuel electrode on the electrochemical performance of solid oxide cells is studied. Three cells with the configuration of Ni-YSZ/YSZ/Nd2NiO4+δ-YSZ were fabricated with different pore-formers, such as graphite, PMMA (polymethyl methacrylate) or an equal...
| Autores: | , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/181407 |
| Acceso en línea: | http://hdl.handle.net/10261/181407 |
| Access Level: | acceso abierto |
| Palabra clave: | Tubular Nickel Zirconia Microstructure Pore-former SOFC SOEC |
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The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modesLaguna-Bercero, M. A.Hanifi, Amir R.Menand, LucileSandhu, Navjot K.Anderson, Neil E.Etsell, Thomas H.Sarkar, ParthaTubularNickelZirconiaMicrostructurePore-formerSOFCSOECThe effect of the pore-former used in the Ni-YSZ fuel electrode on the electrochemical performance of solid oxide cells is studied. Three cells with the configuration of Ni-YSZ/YSZ/Nd2NiO4+δ-YSZ were fabricated with different pore-formers, such as graphite, PMMA (polymethyl methacrylate) or an equal mixture of both, which were added to the Ni-YSZ support during the fabrication process. The results show that the Ni-YSZ support containing graphite leads to a more porous support and formation of coarser pores in the vicinity of the electrolyte. This leads to a reduction in the triple phase boundary (TPB) length with a corresponding increase of activation polarization and, as a consequence, the overall cell performance decreases in both fuel cell and electrolysis modes. The cell having PMMA delivered the highest performance under both operation modes (818 and −713 mAcm−2 were obtained in SOFC and SOEC modes at 800 °C), due to finer pores next to the electrolyte. The cell having the mixture of both pore-formers delivered intermediate results. All the cells show similar concentration polarization values meaning that even the least porous cell (PMMA) provided sufficient porosity for gas flow. In addition, long term reversible experiments were performed, showing no degradation for a period above 400 h.The authors would like to acknowledge the Natural Sciences and Engineering Research Council of Canada for funding part of this research. The work was also funded by the Fundación Domingo Martínez, the Spanish Government (Ministerio de Economía y Competitividad) and the Feder Program of the European Union (MAT2015-68078-R project). LM acknowledges the internship agreement between CSIC and University of Bordeaux for the research stay at ICMA.Peer reviewedElsevierNatural Sciences and Engineering Research Council of CanadaFundación Domingo MartínezMinisterio de Economía y Competitividad (España)European CommissionConsejo Superior de Investigaciones Científicas (España)Université de BordeauxCSIC-UZA - Instituto de Ciencia de Materiales de Aragón (ICMA)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/181407reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-68078-Rhttps://doi.org/10.1016/j.electacta.2018.02.055Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1814072026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| title |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| spellingShingle |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes Laguna-Bercero, M. A. Tubular Nickel Zirconia Microstructure Pore-former SOFC SOEC |
| title_short |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| title_full |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| title_fullStr |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| title_full_unstemmed |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| title_sort |
The effect of pore-former morphology on the electrochemical performance of solid oxide fuel cells under combined fuel cell and electrolysis modes |
| dc.creator.none.fl_str_mv |
Laguna-Bercero, M. A. Hanifi, Amir R. Menand, Lucile Sandhu, Navjot K. Anderson, Neil E. Etsell, Thomas H. Sarkar, Partha |
| author |
Laguna-Bercero, M. A. |
| author_facet |
Laguna-Bercero, M. A. Hanifi, Amir R. Menand, Lucile Sandhu, Navjot K. Anderson, Neil E. Etsell, Thomas H. Sarkar, Partha |
| author_role |
author |
| author2 |
Hanifi, Amir R. Menand, Lucile Sandhu, Navjot K. Anderson, Neil E. Etsell, Thomas H. Sarkar, Partha |
| author2_role |
author author author author author author |
| dc.contributor.none.fl_str_mv |
Natural Sciences and Engineering Research Council of Canada Fundación Domingo Martínez Ministerio de Economía y Competitividad (España) European Commission Consejo Superior de Investigaciones Científicas (España) Université de Bordeaux CSIC-UZA - Instituto de Ciencia de Materiales de Aragón (ICMA) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Tubular Nickel Zirconia Microstructure Pore-former SOFC SOEC |
| topic |
Tubular Nickel Zirconia Microstructure Pore-former SOFC SOEC |
| description |
The effect of the pore-former used in the Ni-YSZ fuel electrode on the electrochemical performance of solid oxide cells is studied. Three cells with the configuration of Ni-YSZ/YSZ/Nd2NiO4+δ-YSZ were fabricated with different pore-formers, such as graphite, PMMA (polymethyl methacrylate) or an equal mixture of both, which were added to the Ni-YSZ support during the fabrication process. The results show that the Ni-YSZ support containing graphite leads to a more porous support and formation of coarser pores in the vicinity of the electrolyte. This leads to a reduction in the triple phase boundary (TPB) length with a corresponding increase of activation polarization and, as a consequence, the overall cell performance decreases in both fuel cell and electrolysis modes. The cell having PMMA delivered the highest performance under both operation modes (818 and −713 mAcm−2 were obtained in SOFC and SOEC modes at 800 °C), due to finer pores next to the electrolyte. The cell having the mixture of both pore-formers delivered intermediate results. All the cells show similar concentration polarization values meaning that even the least porous cell (PMMA) provided sufficient porosity for gas flow. In addition, long term reversible experiments were performed, showing no degradation for a period above 400 h. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 2019 2019 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/181407 |
| url |
http://hdl.handle.net/10261/181407 |
| 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/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/MAT2015-68078-R https://doi.org/10.1016/j.electacta.2018.02.055 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
| 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 |
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| repository.mail.fl_str_mv |
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1869404347571372032 |
| score |
15,812429 |