Synthesis of Pr0.70Sr0.30MnO3δ and Nd0.70Sr0.30MnO3δ powders by solution-combustion technique

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...

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Published in:Materials research (São Carlos, São Paulo, Brazil) São Paulo, Brazil), 2011, Vol.14 (2), p.161-165
Main Authors: Vargas, Reinaldo Azevedo, Bonturim, Everton, Chiba, Rubens, Andreoli, Marco, Seo, Emília Satoshi Miymaru
Format: Article
Language:English
Subjects:
cathode
combustion synthesis
ENGINEERING, CHEMICAL
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
powders
solid oxide fuel cell
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cited_by cdi_FETCH-LOGICAL-c341t-ec7572e539cb780c27576ca64e3ef56a27e3b64deb2d6606e9d03bc10c00969b3
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container_title Materials research (São Carlos, São Paulo, Brazil)
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creator Vargas, Reinaldo Azevedo
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description 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.
doi_str_mv 10.1590/S1516-14392011005000024
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source IngentaConnect Journals; SciELO
subjects cathode
combustion synthesis
ENGINEERING, CHEMICAL
MATERIALS SCIENCE, MULTIDISCIPLINARY
METALLURGY & METALLURGICAL ENGINEERING
powders
solid oxide fuel cell
title Synthesis of Pr0.70Sr0.30MnO3δ and Nd0.70Sr0.30MnO3δ powders by solution-combustion technique
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