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https://repositorio.ufba.br/handle/ri/8640
metadata.dc.type: | Artigo de Periódico |
Título : | Magnetite formation on silica and alumina |
Otros títulos : | Journal of Catalysis |
Autor : | Varela, Maria do Carmo Rangel Santos Galembeck, Fernando |
metadata.dc.creator: | Varela, Maria do Carmo Rangel Santos Galembeck, Fernando |
Resumen : | Iron(III)hydroxoacetate (IHA) was precipitated on (i) silica and (ii) alumina and heated, under conditions at which IHA yields magnetite, according to a new, recently published route for magnetite preparation. In the presence of silica, magnetite formation is prevented. Magnetite obtained by beating IHA deposited on alumina is less crystalline and has a lower Fe(II)/Fe(III) ratio than the unsupported material. Magnetite coatings on alumina are uneven, a feature which is related to the heterogeneity in the morphology of alumina particle surfaces: rougher surfaces are more Intensely coated than smoother ones. |
URI : | http://www.repositorio.ufba.br/ri/handle/ri/8640 |
Fecha de publicación : | 1994 |
Aparece en las colecciones: | Artigo Publicado em Periódico (Química) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Rangel.pdf Restricted Access | 889,58 kB | Adobe PDF | Visualizar/Abrir Request a copy |
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