Obtaining and characterization of Mixed Oxides of 1-xSrxMnO3+-8
DOI:
https://doi.org/10.21754/tecnia.v11i2.525Abstract
Mixed oxides of the La, Sr MnO, ± (x=0.0-0.5) series were prepared by the citrate method. The characterization was carried out structurally by X-ray diffraction (XRD) and elementally by inductive plasma coupling.
(ICP). The Mn/Mn" ratio of the oxide was determined by iodometry. The specific area of the powder sample was
determined by BET. The electronic transport properties for different levels of La substitution were done at different temperatures between 300-700 K. The characterization results show us that our manufacturing technique produces oxides of the La, Sr MnOs type with favorable properties to be used as cathodes in fuel cells.
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