Title of article :
A novel method to prepare magnetic nanoparticles: precipitation
in bicontinuous microemulsions
Author/Authors :
Jesu´ s Esquivel، نويسنده , , Isabel A. Facundo، نويسنده , , M. Esther Trevin?o، نويسنده , ,
Rau´l G. Lo´pez، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2007
Abstract :
A novel method to prepare iron oxide nanoparticles
by precipitation in bicontinuous microemulsions
is reported. Precipitation reactions were carried out in
microemulsions stabilized with a mixture of dodecyltrimethylammonium
bromide/didodecyldimethylammonium
bromide (3/2, w/w). Nanoparticles were characterized by
X-ray diffraction, transmission electronic microscopy
(TEM) and vibrating sample magnetometry (VSM), and
consisted of magnetite or a mixture of magnetite and
maghemite. The particles have an average diameter of
8 nm with a relatively narrow particle size distribution and
show possible superparamagnetic behavior. Noticeably
higher yields of precipitate are observed for this new
approach in comparison with those typicall obtained using
reverse microemulsions.
Journal title :
Journal of Materials Science
Journal title :
Journal of Materials Science