Caracterización de nanopartículas de magnetita sintetizadas por el método de coprecipitación
Morales, F. ; Sagredo, V. ; Torres, T. ; Marquez, G.
Resumen: Se sintetizaron dos nanocompuestos de magnetita mediante el método de coprecipitación, usando como agentes precipitantes los hidróxidos de sodio y amonio, para los compuestos Fe3O4-I y Fe3O4-II, respectivamente. Los nanomateriales sintetizados fueron caracterizados mediante espectroscopia infrarroja, difracción de rayos-x y magnetometría de muestra vibrante. En los dos materiales se obtuvo el óxido de hierro esperado, pero adicionalmente en el Fe3O4-I se formaron trazas de impurezas de compuestos de cloro. Ambos nanocompuestos cristalizaron en la estructura cúbica espinela. A temperatura ambiente, los dos compuestos nanoparticulados se encuentran en el régimen superparamagnético, aunque con interacciones magnéticas presentes entre las partículas.
Two nanocomposites of magnetite were synthesized by the coprecipitation method, using as precipitating agents sodium and ammonium hydroxides, for Fe3O4-I and Fe3O4-II, respectively. The synthesized nanomaterials were characterized by infrared spectroscopy, x-ray diffraction and vibrating sample magnetometry. In the two materials, the expected iron oxide was obtained, but traces of impurities of chlorine compounds were formed in Fe3O4-I. Both nanocompounds crystallized in the cubic-spinel structure. At room temperature, the two nanoparticulate compounds are in the superparamagnetic regime, although with magnetic interactions between the particles.
Idioma: Español
Año: 2019
Publicado en: Ciencia e Ingeniería 40, 1 (2019), 39-44
ISSN: 1316-7081
Originalmente disponible en: Texto completo de la revista
Tipo y forma: Article (Published version)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
Exportado de SIDERAL (2019-08-23-09:38:09)
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Two nanocomposites of magnetite were synthesized by the coprecipitation method, using as precipitating agents sodium and ammonium hydroxides, for Fe3O4-I and Fe3O4-II, respectively. The synthesized nanomaterials were characterized by infrared spectroscopy, x-ray diffraction and vibrating sample magnetometry. In the two materials, the expected iron oxide was obtained, but traces of impurities of chlorine compounds were formed in Fe3O4-I. Both nanocompounds crystallized in the cubic-spinel structure. At room temperature, the two nanoparticulate compounds are in the superparamagnetic regime, although with magnetic interactions between the particles.
Idioma: Español
Año: 2019
Publicado en: Ciencia e Ingeniería 40, 1 (2019), 39-44
ISSN: 1316-7081
Originalmente disponible en: Texto completo de la revista
Tipo y forma: Article (Published version)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. Exportado de SIDERAL (2019-08-23-09:38:09)
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Record created 2019-08-23, last modified 2019-08-23