synthesis of pr0.70sr0.30mno3δ and nd0.70sr0.30mno3δ powders by solution-combustion technique
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ID: 177116
2011
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Abstract
Powders of Pr0.70Sr0.30MnO3δ (PSM) and Nd0.70Sr0.30MnO3δ (NSM) compositions are being investigated as alternative cathode materials for Intermediate Temperature Solid Oxide Fuel Cells. The compositions were synthesized by a solution-combustion method using metal nitrates and urea as fuel. Combustion synthesis is a highly suitable synthesis route for achieving fine and homogeneous powders at low temperatures. Single phase pseudo-perovskite was obtained by X-ray diffraction after heat treatment of PSM and NSM powders at 900 ºC. The synthesized and milling powders had an average particle size between 0.27 to 0.07 μm. Chemical analyses of the powders calcined was performed by X-ray fluorescence and morphological analysis by scanning electron microscopy. The results were compared with literature values, indicating characteristics adjusted for preparation of ceramic suspensions.
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vargas2011materialssynthesis
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| Authors | ;Reinaldo Azevedo Vargas;Everton Bonturim;Rubens Chiba;Marco Andreoli;Emília Satoshi Miymaru Seo |
| Journal | Majalah Ilmiah Teknologi Elektro |
| Year | 2011 |
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