Copper-doped lanthanum ferrites for symmetric SOFCs
| Autor: | Igor Luisetto, Cadia D'Ottavi, Francesca Zurlo, E. Di Bartolomeo, I. Natali Sora, Silvia Licoccia, Valeria Felice |
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| Přispěvatelé: | Zurlo, F., Natali Sora, I., Felice, V., Luisetto, Igor, D'Ottavi, C., Licoccia, S., Di Bartolomeo, E. |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Electrochemical impedance
Materials science Polymers and Plastics Hydrogen Settore ING-IND/22 - Scienza e Tecnologia dei Materiali Analytical chemistry Oxide chemistry.chemical_element Composite electrode 02 engineering and technology Electrolyte 010402 general chemistry 01 natural sciences Electrodes Electrolytes Fuel cells Gas fuel purification Lanthanum Oxides Cell polarization Electrical conductivity Lanthanum ferrites Maximum power density Structure stability Temperature range law.invention Oxides Electrochemical impedance Fuel cells materials chemistry.chemical_compound law Electronic Fuel cells materials Optical and Magnetic Materials Settore CHIM/07 - Fondamenti Chimici delle Tecnologie Metals and Alloys Electronic Optical and Magnetic Materials Ceramics and Composites Atmospheric temperature range 021001 nanoscience & nanotechnology Copper Cathode 0104 chemical sciences Anode chemistry 0210 nano-technology |
| Popis: | Structure stability and electrical conductivity of La 1-x Sr x Fe 0.8 Cu 0.2 O 3-δ with x = 0.2, 0.4 were investigated both in air and in hydrogen to explore their potential applications as symmetric electrodes for solid oxide fuel cells. La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ (LSGM) electrolyte supported symmetric fuel cells were fabricated and tested in air/hydrogen ambient in 650–800 °C temperature range achieving a maximum power density of 162 mW cm −2 . To improve the cell performance, a composite electrode (70 wt% La 1-x Sr x Fe 0.8 Cu 0.2 O 3-δ −30 wt% Gd 0.2 Ce 0.8 O 3-δ ) was successfully evaluated both at the anode and the cathode sides decreasing the cell polarization resistance to 0.454 Ω cm 2 at 800 °C and reaching a single cell maximum power density of 294 mW cm −2 . |
| Databáze: | OpenAIRE |
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