Performance of La0.5Sr1.5MnO4±δ Ruddlesden-Popper manganite as electrode material for symmetrical solid oxide fuel cells. Part A. The oxygen reduction reaction
| Autor: | Pascal Roussel, Caroline Pirovano, Carolina Cárdenas, Mónica V. Sandoval, Edouard Capoen, Gilles H. Gauthier |
|---|---|
| Přispěvatelé: | Universidad Nacional Experimental Politécnica Antonio José de Sucre (UNEXPO), Unité de Catalyse et Chimie du Solide - UMR 8181 (UCCS), Université d'Artois (UA)-Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Département de Biologie [Québec], Institut de Biologie Intégrative et des Systèmes [Québec] (IBIS)-Université Laval [Québec] (ULaval), ENSCL, CNRS, Centrale Lille, Univ. Artois, Université de Lille, Universidad Industrial de Santander [Bucaramanga] [UIS], Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS], Centrale Lille Institut (CLIL)-Université d'Artois (UA)-Centrale Lille-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Lille |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
General Chemical Engineering Oxide Sintering chemistry.chemical_element 02 engineering and technology [CHIM.INOR]Chemical Sciences/Inorganic chemistry 010402 general chemistry Electrochemistry 7. Clean energy 01 natural sciences Oxygen law.invention chemistry.chemical_compound law Yttria-stabilized zirconia ComputingMilieux_MISCELLANEOUS Symmetrical SOFC Ruddlesden-Popper Manganite Electrochemical impedance spectroscopy Oxygen reduction reaction 021001 nanoscience & nanotechnology Cathode 0104 chemical sciences Dielectric spectroscopy Chemical engineering chemistry Electrode 0210 nano-technology |
| Zdroj: | Electrochimica Acta Electrochimica Acta, 2019, 304, pp.415-427. ⟨10.1016/j.electacta.2019.03.037⟩ Electrochimica Acta, Elsevier, 2019, 304, pp.415-427. ⟨10.1016/j.electacta.2019.03.037⟩ |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2019.03.037⟩ |
| Popis: | The electrochemical performance of La0.5Sr1.5MnO4±δ (L5S15 M) as SOFC cathode was studied using Electrochemical Impedance Spectroscopy (EIS) measurements. The influence of the sintering temperature on the electrochemical performance was examined in air for Au/L5S15 M/GDC/YSZ/GDC/L5S15 M/Au symmetrical cell. For the oxygen reduction reaction, the electron transfer between the electrode and oxygen, and the incorporation of oxygen ions into the electrode are the main controlling processes of oxygen reduction reaction for electrodes sintered at 1150 and 1200 °C. Increasing the sintering temperature up to 1250 °C increases the Sr diffusion through GDC interlayer, which leads to Sr accumulation at the GDC/YSZ interface with SrZrO3 formation and subsequent cell performance degradation. The lowest area specific resistance (ASR) values was obtained for the L5S15 M electrode sintered at 1150 °C. |
| Databáze: | OpenAIRE |
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