Synthesis of monodispersed magnetite particles from different organometallic precursors

被引：67

作者：

Roca, A. G. ^{[1
]}

Morales, M. P. ^{[1
]}

Serna, C. J. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2006年 / 42卷 / 10期

关键词：

capping ligands; iron oxide; magnetic liquids; magnetic nanoparticles; magnetite; organometallic decomposition;

D O I：

10.1109/TMAG.2006.880111

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Magnetite (Fe3O4) nanoparticles with very narrow particle size distribution can be obtained by decomposition of an organometallic compound in the presence of oleic acid. It has been shown that the carboxylic acid catalyzes the reaction leading to decreased decomposition temperatures and, consequently, as the surfactant concentration increases, smaller particles are formed. Precursors such as Fe(CO)(5), iron acetylaoetonate, and iron-oleate complexes, previously formed from an iron salt, have been used for the preparation of magnetite particles. Al though the particles are magnetite in all cases, the size, shape, and distribution of nanoparticles differ depending on the precursor and consequently the samples show different magnetic behavior. Besides, a different mechanism of formation of the nanoparticles is expected and related to the decomposition rate of the precursor.

引用

页码：3025 / 3029

页数：5

共 31 条

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