Synthesis and stabilization of FeCo nanoparticles

被引：266

作者：

Chaubey, Girija S.

Barcena, Carlos

Poudyal, Narayan

Rong, Chuanbing

Gao, Jinming

Sun, Shouheng

Liu, J. Ping.

机构：

[1] Univ Texas, Dept Phys, Arlington, TX 76019 USA

[2] Univ Texas, SW Med Ctr, Simmons Comprehens Canc Ctr, Dallas, TX 75390 USA

[3] Brown Univ, Dept Chem, Providence, RI 02916 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 23期

关键词：

D O I：

10.1021/ja0708969

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Monodisperse spherical FeCo nanoparticles were synthesized by reduction decomposition of Fe(acac)(3) and Co(acac)(2) in the presence of surfactants and 1,2-hexadecanediol. The particle size can be controlled by varying the surfactants. The presence of surfactants on the surface of the nanocrystal protects them from surface oxidation. The saturation magnetization of as-synthesized particles is found to be size dependent. The as-synthesized FeCo nanoparticles can be made air-stable by annealing at 500 degrees C for 30 min without causing particles sintering.

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页码：7214 / +

页数：3

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