Temperature dependence of morphology and magnetic properties of cobalt nanoparticles prepared by an inverse micelle technique

Citation
Xm. Lin et al., Temperature dependence of morphology and magnetic properties of cobalt nanoparticles prepared by an inverse micelle technique, LANGMUIR, 14(25), 1998, pp. 7140-7146
Citations number
31
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
07437463 → ACNP
Volume
14
Issue
25
Year of publication
1998
Pages
7140 - 7146
Database
ISI
SICI code
0743-7463(199812)14:25<7140:TDOMAM>2.0.ZU;2-U
Abstract
We have fabricated cobalt nanoparticles using sodium borohydride reduction of cobalt chloride in a didodecyldimethylammonium bromide (DDAB)/toluene in verse micelle solution. The particle morphology changed from single particl es to clusters as we increased the reaction temperature. Intracluster dipol e-dipole interaction increased the blocking temperature and reduced the eff ective magnetic moment per cluster.