English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/103008
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Performance of La2–xSrxCo0.5Ni0.5O4±δ as an oxygen electrode for solid oxide reversible cells

AuthorsLaguna-Bercero, M. A. ; Kinadjan, N.; Sayers, R.; El-Shinawi, H.; Greaves, C.; Skinner, Stephen J.
KeywordsHydrogen production
K2NiF4 structure
Oxygen non-stoichiometry
Issue Date2011
CitationFuel Cells 11(1): 102-107 (2011)
AbstractLa2 –xSrxCo0.5Ni0.5O4 ± δ (LSCN) is presented as a novel electrode for both solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs). LSCN/10Sc1CeSZ (scandia and ceria stabilised zirconia)/LSCN symmetrical cells were fabricated and characterised by AC impedance spectroscopy under different oxygen partial pressures at temperatures of up to 900 °C. At 850 °C polarisation resistances of 5.15 and 5.74 Ω cm2 were found applying air and oxygen, respectively. Electrolysis and fuel cell j–V experiments were also performed at temperatures between 700 and 850 °C using a LSCN/10Sc1CeSZ/Ni-YSZ. Electrochemical results showed that the cell performs equally in both SOFC and SOEC modes. Detailed results in terms of performance are presented and discussed. LSCN is presented as a good candidate for both SOFC and SOEC. The similar performance obtained for j–V (current density–voltage) curves in electrolysis and fuel cell operation mode is thought to be related to the flexible oxygen non-stoichiometry of the LSCN (K2NiF4-type structure).
Publisher version (URL)http://dx.doi.org/10.1002/fuce.201000067
Identifiersdoi: 10.1002/fuce.201000067
issn: 1615-6846
e-issn: 1615-6854
Appears in Collections:(ICMA) Artículos
Files in This Item:
File Description SizeFormat 
Performance of La2.pdf462,79 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.