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Please use this identifier to cite or link to this item: http://repositorio.ufba.br/ri/handle/ri/8640

Title: Magnetite formation on silica and alumina
Other Titles: Journal of Catalysis
Authors: Varela, Maria do Carmo Rangel Santos
Galembeck, Fernando
Issue Date: 1994
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.
Description: Texto completo: acesso restrito. p.364–371
URI: http://www.repositorio.ufba.br/ri/handle/ri/8640
ISSN: 0021-9517
Appears in Collections:Artigos Publicados em Periódicos (Quimica)

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