One-step synthesis of Mn3O4 nanoparticles : Structural and magnetic study

One-step room-temperature synthesis of nanocrystalline Mn3O4 hausmannite, without heating posttreatment, was carried out from a simple dissolution of manganese(II) acetate in a mixture of N,N'-dimethylformamide (DMF) and water. Homogeneous nanocrystals like rods were obtained, with an average w...

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Bibliographic Details
Published in:Journal of colloid and interface science 2005-11, Vol.291 (1), p.175-180
Main Authors: VAZQUEZ-OLMOS, América, REDON, Rocib, RODRIGUEZ-GATTORNO, Geonel, MATA-ZAMORA, M. Esther, MORALES-LEAL, Francisco, FERNANDEZ-OSORIO, Ana L, SANIGER, José M
Format: Article
Language:English
Subjects:
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Physical and chemical studies. Granulometry. Electrokinetic phenomena
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Summary:One-step room-temperature synthesis of nanocrystalline Mn3O4 hausmannite, without heating posttreatment, was carried out from a simple dissolution of manganese(II) acetate in a mixture of N,N'-dimethylformamide (DMF) and water. Homogeneous nanocrystals like rods were obtained, with an average width and length of 6.6+/-1.2 nm and 17.4+/-4.1 nm, respectively, and a preferential growth along the 001 direction. Magnetization measurements on a powdered sample showed ferrimagnetic behavior at low temperatures. Under zero-field cooling (ZFC) measurement at 100 Oe, the observed blocking temperature (T(B)) was 37 K.
ISSN:0021-9797
1095-7103
DOI:10.1016/j.jcis.2005.05.005