Journal article
Electrochemical characterization of La0.6Ca0.4Fe0.8Ni0.2O3-δ perovskite cathode for IT-SOFC
Universidad del Pais Vasco1
Department of Energy Conversion and Storage, Technical University of Denmark2
Applied Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark3
Fundamental Electrochemistry, Department of Energy Conversion and Storage, Technical University of Denmark4
CIC energigune5
Electrolyte supported symmetric cells featuring La0.6Ca 0.4Fe0.8Ni0.2O3 (LCFN) electrodes are studied by electrochemical impedance spectroscopy. The aim is to describe the polarization losses of this mixed ionic electronic conductor electrode at various cell operating conditions for cells sintered at different temperatures.
An equivalent circuit describing the cathode polarization resistances was constructed from analyzing impedance spectra recorded at different oxygen partial pressures and temperatures. Favorable oxygen reduction reaction properties are demonstrated for the LCFN cell sintered at 750 C with a polarization resistance of 0.05 Ω cm2 at an operating temperature of 800 C in pure oxygen. © 2013 Elsevier B.V.
All rights reserved.
| Language: | English |
|---|---|
| Year: | 2013 |
| Pages: | 196-200 |
| ISSN: | 18732755 and 03787753 |
| Types: | Journal article |
| DOI: | 10.1016/j.jpowsour.2013.03.121 |
| ORCIDs: | Hauch, Anne |
Calcium Cathodes Electrochemical impedance spectroscopy Electrolytic reduction Electrophoretic coatings Nickel Sintering Solid oxide fuel cells (SOFC) Spectroscopy
