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dc.contributor.author
Cademartori, Davide
dc.contributor.author
Maria Asensio, Antonio
dc.contributor.author
Clematis, Davide
dc.contributor.author
Basbus, Juan Felipe
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dc.contributor.author
Viviani, Massimo
dc.contributor.author
Presto, Sabrina
dc.contributor.author
Barbucci, Antonio
dc.contributor.author
Carpanese, M. Paola
dc.date.available
2023-11-28T19:30:18Z
dc.date.issued
2023-11
dc.identifier.citation
Cademartori, Davide; Maria Asensio, Antonio; Clematis, Davide; Basbus, Juan Felipe; Viviani, Massimo; et al.; A high-performance Co-free electrode for solid oxide cells: La0.7Sr0.3Cu0.15Fe0.85O3-δ synthesis and characterisation; Elsevier Science SA; Journal of Alloys and Compounds; 965; 11-2023; 1-10
dc.identifier.issn
0925-8388
dc.identifier.uri
http://hdl.handle.net/11336/218756
dc.description.abstract
A Co-free perovskite material, La0.7Sr0.3Cu0.15Fe0.85O3-δ, is synthesized and electrochemically characterized to evaluate its potential application as electrocatalyst in the air electrode of solid oxide cells. The powder was firstly synthesized by the sol-gel method and subsequently morphologically and structurally characterized by scanning electron microscope and X-ray diffraction. Symmetrical circular button cells featuring Sm-doped ceria (20% Sm) as supporting electrolyte and La0.7Sr0.3Cu0.15Fe0.85O3-δ as electrocatalyst were manufactured to carry out electrochemical investigations. Two different electrode morphologies are analyzed. In the first structure, the La0.7Sr0.3Cu0.15Fe0.85O3-δ calcined powders are directly deposited by slurry coating on a dense sintered supporting pellet of Sm-doped ceria. In the second electrode configuration, the precursor solution of La0.7Sr0.3Cu0.15Fe0.85O3-δ impregnates a porous scaffold of Sm-doped ceria, previously deposited and co-sintered with the supporting electrolyte. The performance of the samples was studied by means of electrochemical impedance spectroscopy, measuring polarization resistances of 0.0153 Ω∙cm2 at 700 °C and 0.052 Ω∙cm2 at 600 °C for the slurry coated and infiltrated electrodes, respectively. These values, according to the authors knowledge, are amongst the lowest ever obtained for Co-free solid oxides electrodes. However, the very high electrocatalytic activity obtained at intermediate temperatures is not accompanied by chemical stability over time.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science SA
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AIR ELECTRODE
dc.subject
BACKBONE
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COBALT-FREE
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INFILTRATION
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PEROVSKITE
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SOLID OXIDE CELLS
dc.subject.classification
Cerámicos
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
A high-performance Co-free electrode for solid oxide cells: La0.7Sr0.3Cu0.15Fe0.85O3-δ synthesis and characterisation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-11-28T14:37:17Z
dc.journal.volume
965
dc.journal.pagination
1-10
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Cademartori, Davide. Università degli Studi di Genova; Italia
dc.description.fil
Fil: Maria Asensio, Antonio. Università degli Studi di Genova; Italia
dc.description.fil
Fil: Clematis, Davide. Università degli Studi di Genova; Italia
dc.description.fil
Fil: Basbus, Juan Felipe. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche | Comisión Nacional de Energía Atómica. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología. Unidad Ejecutora Instituto de Nanociencia y Nanotecnología - Nodo Bariloche; Argentina. Consiglio Nazionale delle Ricerche; Italia
dc.description.fil
Fil: Viviani, Massimo. Consiglio Nazionale delle Ricerche; Italia
dc.description.fil
Fil: Presto, Sabrina. Consiglio Nazionale delle Ricerche; Italia
dc.description.fil
Fil: Barbucci, Antonio. Consiglio Nazionale delle Ricerche; Italia. Università degli Studi di Genova; Italia
dc.description.fil
Fil: Carpanese, M. Paola. Consiglio Nazionale delle Ricerche; Italia. Università degli Studi di Genova; Italia
dc.journal.title
Journal of Alloys and Compounds
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0925838823026373
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jallcom.2023.171334
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