Graphene‐based Oxygen Reduction Electrodes for Low Temperature Solid Oxide Fuel Cells
| Autor: | Yong Li, Y. Jee, Alireza Karimaghaloo, S. Ji, Suk Won Cha, Vincent Tung, J.-W. Han, H. Moon, Pei-Chen Su, Hidetaka Ishihara, Min Hwan Lee, A. Macedo Andrade |
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| Rok vydání: | 2017 |
| Předmět: |
Working electrode
Materials science Renewable Energy Sustainability and the Environment Graphene Graphene foam Inorganic chemistry Oxide Energy Engineering and Power Technology 02 engineering and technology Atmospheric temperature range 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Palladium-hydrogen electrode Electrode 0210 nano-technology Graphene oxide paper |
| Zdroj: | Fuel Cells. 17:344-352 |
| ISSN: | 1615-6854 1615-6846 |
| DOI: | 10.1002/fuce.201600169 |
| Popis: | In this report, we present a study of using nitrogen-doped graphene as the air electrode of low temperature solid oxide fuel cells (LT-SOFCs) operating at 350 °C or lower. Three graphene derivatives were prepared through hydrothermal reactions and their electrochemical performance and material properties were characterized in the temperature range of 225–350 °C in atmospheric air. Nitrogen-doped graphene was found to exhibit a decent air electrode performance comparable to a porous Pt electrode aged for 8 h at 350 °C, but only for a limited time. After ∼10 h of operation at 350 °C, the electrode performance degraded significantly due to carbon oxidation. However, alternative routes of synthesizing/doping graphene derivatives are expected to improve the viability of using these materials as a practical high temperature air electrode. |
| Databáze: | OpenAIRE |
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