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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Structural stability study of cobalt ferrite-based nanoparticle using micro Raman spectroscopy

2004; Elsevier BV; Volume: 272-276; Linguagem: Inglês

10.1016/j.jmmm.2003.12.582

ISSN

1873-4766

Autores

M.A.G. Soler, T.F.O. Melo, S.W. da Silva, E.C.D. Lima, A.C.M. Pimenta, V. K. Garg, A. C. Oliveira, P.C. Morais,

Tópico(s)

X-ray Spectroscopy and Fluorescence Analysis

Resumo

Micro Raman scattering was used to study the structural stability of cobalt ferrite-based (CoFe2O4) nanoparticles, under illumination with the 514 nm line, at 7 mW laser power. Different samples were investigated after performing the steps of the magnetic fluid (MF) preparation. Raman spectra of samples peptized at 0.25 mol/l perchloric acid showed features similar to bulk maghemite. However, samples peptized at 0.75 mol/l perchloric acid showed features similar to the Fe3O4 phase.

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