AMIRA, Sabah; FERKHI, Mosbah; KHALED, A.; MAUVY, Fabrice; BASSAT, Jean-Marc.; CASSIR, Michel; GRENIER, Jean-Claude

doi:10.1016/j.materresbull.2023.112400

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AMIRA, Sabah
Université Mohammed Seddik Benyahia [Jijel] | University of Jijel [UMSBJ]

FERKHI, Mosbah
Université Mohammed Seddik Benyahia [Jijel] | University of Jijel [UMSBJ]

KHALED, A.
Université Mohammed Seddik Benyahia [Jijel] | University of Jijel [UMSBJ]

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Materials Research Bulletin. 2023, vol. 167, p. 112400

Elsevier

Résumé en anglais

An architectured interlayer composed of 50% YSZ ((ZrO2)0.92(Y2O3)0.08) and 50% GDC (Ce0.90Gd0.10O1.95) (so-called YSZ+GDC) was successfully layered between the YSZ electrolyte and the La2BO4 ± δ (B: Ni, Mn, Co) oxygen electrode materials with the aim to improve the electrochemical performance of the corresponding Intermediate Temperature-Solid Oxide Cells (IT-SOCs). Various physical and chemical characterizations were carried out to assess the purity of the materials and the chemical reactivity between the different constituents of the electrochemical cell. The oxygen electrode performance was carried out by Electrochemical Impedance Spectroscopy (EIS) measurements. La2NiO4±δ material in the presence of this interfacial layer (YSZ+GDC) and YSZ as electrolyte shows the lower ASRs values: 0.43 and 0.18 Ω.cm² at 600 and 700 °C, respectively. Moreover, this architectured electrode shows a quite low activation energy value of the ASR, that is of the order of 0.72 eV. This remarkable behavior enables us to propose this design as an alternative oxygen electrode for IT-SOC with a specific (YSZ+GDC) composite film as interfacial layer between cathode and YSZ electrolyte.< Réduire

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Interfacial Layer

Ruddlesden-Popper oxides

Solid Oxide Fuel Cells (SOFC)

Mixed Ionic and Electronic Conductors (MIEC)

Area Specific Resistances (ASR)

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Development of an innovative interfacial layer adapted to La2BO4±δ (B: Ni, Mn, Co) IT-SOC oxygen electrodes

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