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https://repositorio.ufba.br/handle/ri/8640
metadata.dc.type: | Artigo de Periódico |
Title: | Magnetite formation on silica and alumina |
Other Titles: | Journal of Catalysis |
Authors: | Varela, Maria do Carmo Rangel Santos Galembeck, Fernando |
metadata.dc.creator: | Varela, Maria do Carmo Rangel Santos Galembeck, Fernando |
Abstract: | 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 |
Issue Date: | 1994 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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Rangel.pdf Restricted Access | 889,58 kB | Adobe PDF | View/Open Request a copy |
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