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

被引:94
作者
Lin, XM [1 ]
Sorensen, CM
Klabunde, KJ
Hadjipanayis, GC
机构
[1] Kansas State Univ, Dept Phys, Condensed Matter Lab, Manhattan, KS 66506 USA
[2] Kansas State Univ, Dept Chem, Manhattan, KS 66506 USA
[3] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
关键词
D O I
10.1021/la980509w
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have fabricated cobalt nanoparticles using sodium borohydride reduction of cobalt chloride in a didodecyldimethylammonium bromide (DDAB)/toluene inverse micelle solution. The particle morphology changed from single particles to clusters as we increased the reaction temperature. Intracluster dipole-dipole interaction increased the blocking temperature and reduced the effective magnetic moment per cluster.
引用
收藏
页码:7140 / 7146
页数:7
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