Self-propagating room temperature synthesis of nanopowders for solid oxide fuel cells (SOFC) |
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| Affiliation: | 1. Department of Material Sciences, Institute of Nuclear Sciences, 170 Vinca, 11001 Belgrade, Serbia and Montenegro;2. Institute of Phycis, 11080 Zemun, Serbia and Montenegro;3. Max-Planck Institute fuer Metallforschung, 70569 Stuttgart, Germany;1. Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, West Bengal, India;2. Institute of Mineralogy & Crystallography, University of Vienna, Geozentrum, Althanstr. 9, A-1090 Vienna, Austria;3. Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy;1. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center for Atmospheric Environment & Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, P. R. China;2. Institute of Chemical Materials, Chinese Academy of Engineering Physics, Mianyang 621999, Sichuan, P. R. China |
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| Abstract: | Ceria based solid solutions are promising ceramic electrolytes for SOFC which will be able to function at intermediate temperatures. In accordance with common trends to decrease the production and operating costs of new generation of SOFC materials the reaction based on metathetical pathway is described, whereby solid solution powders of rare earth doped ceria in the nanoscale range were obtained at room temperature. By simple hand mixing of reactants the reaction was enhanced, propagating afterwards by itself. Nanometric ceria powders doped with Y or Nd, as well as co doped with both cations were synthesized. Composition of Ce1 − xMexO2 − y ranged from x = 0–0.25. The reaction course is described in detail and the properties of the obtained powders are presented. |
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