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Title: Preparation of size-controlled nanoparticles of magnetite.
Authors: Andrade, Ângela Leão
Valente, Manuel Almeida
Ferreira, José Maria da Fonte
Fabris, José Domingos
Keywords: Surface conditioning
Magnetic nanoparticle
Iron oxide
Issue Date: 2012
Citation: ANDRADE, A. L. et al. Preparation of size-controlled nanoparticles of magnetite. Journal of Magnetism and Magnetic Materials, v. 324, n. 10, p. 1753–1757, maio 2012. Disponível em: <>. Acesso em: 10 dez. 2012.
Abstract: Samples of ferrofluids containing chemically stabilized nanoparticles of magnetite (Fe3O4) with tetramethylammonium hydroxide (TMAOH) were prepared by a direct reduction–precipitation method. The influences of aging time and temperature on the size and monodispersion characteristics of the produced nanoparticles were investigated. Transmission electron microscopy, powder X-ray diffraction, Fourier-transform infrared, and magnetization measurements with applied magnetic field up to 2 T were used to characterize the synthesized iron oxides. Raising the temperature of the synthesized material in autoclave affects positively the monodispersion of the nanoparticles, but it was not found to significantly influence the size itself of individual particles.
ISSN: 03048853
metadata.dc.rights.license: O periódico Journal of Magnetism and Magnetic Materials concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3313090498469.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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