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Título: | Reversible operation of microtubular solid oxide cells using La0.6Sr0.4Co0.2Fe0.8O3-δ-Ce0.9Gd0.1O2-δ oxygen electrodes |
Autor: | López-Robledo, M. J. CSIC ORCID; Laguna-Bercero, M. A. CSIC ORCID ; Larrea, A. CSIC ORCID ; Orera, V. M. CSIC ORCID | Palabras clave: | Electrochemical properties Extrusion Microtubular SOFC SOEC |
Fecha de publicación: | 2018 | Editor: | Elsevier | Citación: | Journal of Power Sources 378: 184-189 (2018) | Resumen: | Yttria stabilized zirconia (YSZ) based microtubular solid oxide fuel cells (mT-SOFCs) using La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) and Ce0.9Gd0.1O2-δ (GDC) as the oxygen electrode, along with a porous GDC electrolyte-electrode barrier layer, were fabricated and characterized in both fuel cell (SOFC) and electrolysis (SOEC) operation modes. The cells were anode-supported, the NiO-YSZ microtubular supports being made by Powder Extrusion Moulding (PEM). The cells showed power densities of 695 mW cm−2 at 800 °C and 0.7 V in SOFC mode, and of 845 mA cm−2 at 800 °C and 1.3 V in SOEC mode. AC impedance experiments performed under different potential loads demonstrated the reversibility of the cells. These results showed that these cells, prepared with a method suitable for using on an industrial scale, are highly reproducible and reliable, as well as very competitive as reversible SOFC-SOEC devices operating at intermediate temperatures. | Versión del editor: | https://doi.org/10.1016/j.jpowsour.2017.12.035 | URI: | http://hdl.handle.net/10261/181284 | DOI: | 10.1016/j.jpowsour.2017.12.035 | ISSN: | 0378-7753 |
Aparece en las colecciones: | (ICMA) Artículos |
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