High Performance Solid Oxide Fuel Cell Cathode Fabricated by Electrochemical Vapor Deposition
| Autor: | H. Sasaki, Atsuko Kajimura, Sugiura Nozomi, Masamichi Ippommatsu, Shoji Otoshi, Minoru Suzuki |
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| Rok vydání: | 1994 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Inorganic chemistry Analytical chemistry Oxide Chemical vapor deposition Partial pressure Condensed Matter Physics Cathode Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Electrochemical cell chemistry.chemical_compound chemistry law Materials Chemistry Electrochemistry Solid oxide fuel cell Thin film Yttria-stabilized zirconia |
| Zdroj: | Journal of The Electrochemical Society. 141:1928-1931 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/1.2055028 |
| Popis: | La(Sr)MnO[sub 3] cathodes have been investigated as high temperature oxygen reduction electrodes in the solid oxide fuel cells (SOFCs). The cathodes consist of 10 mole percent of yttria stabilized zirconia (YSZ) thin film electrolyte layer deposited on a porous La[sub 0.81]Sr[sub 0.09]MnO[sub 3] tube using the electrochemical vapor deposition method. The La(Sr)MnO[sub 3]/YSZ cathodes have different electrochemical properties from those fabricated with the sintering method. The cathode polarization was about 1 mV at a current density of 1.5 A/cm[sup 2] in oxygen at 1,000 C. This type of cathode has an extremely large phase boundary and large interfacial capacitance (more than 1 F/cm[sup 2]) which is approximately proportional to the oxygen partial pressure. |
| Databáze: | OpenAIRE |
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