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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Imprimir: 1093-3611
ISSN En Línea: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.v3.i2-3.120
pages 269-278

Reactivity in molten oxonitrates of lanthanum and maganese salts. Synthesis of La1-xMnO3

SINOPSIS

The reactivity of each lanthanum and manganese nitrate and chloride is studied in four molten media, NaN03, NaN02, KN03 and KNO2 at 500 °C. The lanthanum salts produce mainly hydroxide and oxychloride. The manganese salts give a variety of compounds, mainly oxides and also oxychloride and sodium manganate. The reaction of the mixed metal salts leads to the perovskite non-stoichiometric La1-xMnO3. The results can be interpreted in terms of acido-basicity of the lanthanum ion and of oxidation pathway of the manganese species. The simultaneous presence of both metal ions in the media forces La1-xMn03 to precipitate. The obtained crystallites are nanosized with a large surface area.


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