Controlled monodisperse Fe nanoparticles synthesized by chemical method

Author

Pei, Wenli ; Kakibe, Saku ; Ohta, Ippei ; Takahashi, Migaku

Author_Institution

Dept. of Electron., Tohoku Univ., Sendai, Japan

Volume

41

Issue

10

fYear

2005

Firstpage

3391

Lastpage

3393

Abstract

Monodisperse 5 to 20 nm Fe nanoparticles have been directly synthesized by chemical method. Growth processes of Fe nanoparticles were studied by analyzing samples of different reaction stages. The growth process of particles is not simply proportional to the reaction time. In initial reaction, the precursors abruptly decompose to many nuclei and then the nuclei grow up to small particles. Subsequently, the particles trend to uniform in a reasonable reaction condition. It takes some time from nucleation to formation of the monodisperse nanoparticles. Composite addition of surfactants can more efficiently control particle growth. The Fe particles with diameter of 35 nm can be produced by seed mediate method.

Keywords

disperse systems; ferromagnetic materials; iron; materials preparation; nanoparticles; pyrolysis; 35 nm; 5 to 20 nm; Fe; chemical method; controlled monodisperse nanoparticle synthesis; size distribution; Chemical engineering; Chemical lasers; Ethanol; Iron; Magnetic materials; Nanoparticles; Size control; Solvents; Temperature; Thermal decomposition; Chemical method; control; monodisperse; nanoparticles; size distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2005.855207

Filename

1519316