Study of la4bacu5-xmnxo13+delta materials ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Study of la4bacu5-xmnxo13+delta materials as potential electrode for symmetrical-sofc
Auteur(s) :
Duran, Silvia [Auteur]
Rangel, Nathaly [Auteur]
Silva, Camila [Auteur]
Macias, Mario A. [Auteur]
Capoen, Edouard [Auteur]
Pirovano, Caroline [Auteur]
Niemczyk, Anna [Auteur]
Suescun, Leopoldo [Auteur]
Roussel, Pascal [Auteur]
Gauthier, Gilles H. [Auteur]
Rangel, Nathaly [Auteur]
Silva, Camila [Auteur]
Macias, Mario A. [Auteur]
Capoen, Edouard [Auteur]
Pirovano, Caroline [Auteur]
Niemczyk, Anna [Auteur]
Suescun, Leopoldo [Auteur]
Roussel, Pascal [Auteur]
Gauthier, Gilles H. [Auteur]
Titre de la revue :
Solid State Ionics
Nom court de la revue :
Solid State Ion.
Numéro :
341
Date de publication :
2019-11-05
ISSN :
0167-2738
Mot(s)-clé(s) en anglais :
Electrical conductivity
Cuprate
Electrode
Perovskite
SOFC
Manganite
Cuprate
Electrode
Perovskite
SOFC
Manganite
Discipline(s) HAL :
Chimie/Chimie inorganique
Résumé en anglais : [en]
La4BaCu5-xMnxO13+δ materials have been synthesized by the sol-gel method in air and studied as possible electrode materials for symmetrical Solid Oxide Fuel Cells (S-SOFC). Within the series, La4BaMn5O13+δ (LBMn) exhibits ...
Lire la suite >La4BaCu5-xMnxO13+δ materials have been synthesized by the sol-gel method in air and studied as possible electrode materials for symmetrical Solid Oxide Fuel Cells (S-SOFC). Within the series, La4BaMn5O13+δ (LBMn) exhibits an excellent stability in reducing atmosphere and remarkable redox stability, although a structure transition from rhombohedral to cubic perovskite structure is found beyond 500 °C in air or wet diluted hydrogen. The thermal expansion coefficients (TEC), deduced from HT-XRD study during redox cycling, make the manganite compatible with classical SOFC electrolytes at low temperature; however, relatively high values of 15.8(5) and 18.1(2) K−1 are found in cathode and anode conditions for T > 500 °C. With high electrical conductivities of 178 and 33.3 S cm−1, in air and hydrogen at 800 °C, we demonstrate that the La0.8Ba0.2MnO3±δ manganite fulfils all the preliminary requirements of an electrode material for symmetrical SOFC.Lire moins >
Lire la suite >La4BaCu5-xMnxO13+δ materials have been synthesized by the sol-gel method in air and studied as possible electrode materials for symmetrical Solid Oxide Fuel Cells (S-SOFC). Within the series, La4BaMn5O13+δ (LBMn) exhibits an excellent stability in reducing atmosphere and remarkable redox stability, although a structure transition from rhombohedral to cubic perovskite structure is found beyond 500 °C in air or wet diluted hydrogen. The thermal expansion coefficients (TEC), deduced from HT-XRD study during redox cycling, make the manganite compatible with classical SOFC electrolytes at low temperature; however, relatively high values of 15.8(5) and 18.1(2) K−1 are found in cathode and anode conditions for T > 500 °C. With high electrical conductivities of 178 and 33.3 S cm−1, in air and hydrogen at 800 °C, we demonstrate that the La0.8Ba0.2MnO3±δ manganite fulfils all the preliminary requirements of an electrode material for symmetrical SOFC.Lire moins >
Langue :
Anglais
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)
Date de dépôt :
2022-03-02T07:14:10Z