English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/102962
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 12 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar otros formatos: Exportar EndNote (RIS)Exportar EndNote (RIS)Exportar EndNote (RIS)
Título

Effects of using (La0.8Sr0.2)0.95Fe0.6Mn0.3Co0.1O3 (LSFMC), LaNi0.6Fe0.4O3-δ (LNF) and LaNi0.6Co0.4O3-δ (LNC) as contact materials on solid oxide fuel cells

Autor Morán-Ruiz, Aroa; Vidal, Karmele; Laguna-Bercero, M. A.; Larrañaga, Aitor; Arriortua, María Isabel
Palabras clave Interconnect
Contact perovskite
Ohmic resistance losses
Electrical contact
SOFC
Fecha de publicación 2014
EditorElsevier
Citación Journal of Power Sources 248: 1067-1076 (2014)
ResumenThree lanthanum-based perovskite ceramic compounds were studied as contact materials, (La0.8Sr0.2)0.95Fe 0.6Mn0.3Co0.1O3 (LSFMC), LaNi 0.6Fe0.4O3-δ (LNF) and LaNi 0.6Co0.4O3-δ (LNC), between a Crofer22APU interconnect and a La0.6Sr0.4FeO3 (LSF) cathode. The layers were deposited using in all cases wet colloidal spray technique. Phase structures of materials were checked by X-ray Diffraction (XRD) measurements. Electrical conductivity and thermal expansion coefficient (TEC) for these selected compounds were also determined. The important properties of the resulting {interconnect/contact layer/cathode} systems; including area specific resistance (ASR), reactivity, and adhesion of contact materials to the interconnect and to the cathode were investigated. Moreover, the electrical resistance and reactivity of the system without a contact layer, {steel/LSF/LSF} system, was measured for comparison. The contact resistance is strongly influenced by the conductivity of selected contact materials, showing the lowest ASR values for {Crofer22APU/LNC/LSF} assembly. The point microanalysis on cross-section of the systems, after ASR measurements, reveals that there is chromium enrichment in the contact and cathode layers which allows the formation of phases like SrCrO4 and Cr-containing perovskite in short exposure times. An adequate integrity and low reactivity is achieved when LNF contact coating is applied between Crofer22APU and LSF cathode without compromising the contact resistance of the system. © 2013 Elsevier B.V. All rights reserved.
Versión del editorhttp://dx.doi.org/10.1016/j.jpowsour.2013.10.031
URI http://hdl.handle.net/10261/102962
DOI10.1016/j.jpowsour.2013.10.031
Identificadoresdoi: 10.1016/j.jpowsour.2013.10.031
issn: 0378-7753
Aparece en las colecciones: (ICMA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Effects of using.pdf1,73 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.