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Oxides supported carbon air-electrodes for alkaline solution power devices |
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| Affiliation: | 1. Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, China;2. South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou, China;3. College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing, China |
| Abstract: | Porous carbon oxygen-reducing electrodes incorporated with perovskite oxide catalysts are reported. It has been possible to fabricate high-performance oxygen-reducing electrodes by introducing La0.5Sr0.5CoO3 and La0.99Sr0.01NiO3 with the activated coconut-shell charcoal; these electrodes could sustain load currents as high as 1 A cm−2 without serious degradation. A model to explain oxygen-reducing activity of these oxides has been proposed. |
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