Template-free synthesis of hollow α-Fe2O3 microspheres

被引：10
|
作者：
Song, Hao-Jie [1 ]
Li, Na [1 ]
Shen, Xiang-Qian [1 ]
机构：
[1] Jiangsu Univ, Sch Mat Sci & Engn, Zhenjiang 212013, Jiangsu, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2011年 / 102卷 / 03期
基金：
中国博士后科学基金;
关键词：
MAGNETIC-PROPERTIES; FACILE ROUTE; NANORODS; SPHERES; FEOOH;
D O I：
10.1007/s00339-010-6072-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nearly monodisperse hollow alpha-Fe2O3 microspheres composed of nanoparticles have been successfully synthesized through a facile template-free hydrothermal method. The products were characterized by X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It is shown that the hollow alpha-Fe2O3 microspheres consist of well-aligned alpha-Fe2O3 nanoparticles with a mean diameter of about 15 nm. This facile reaction route presents an efficient method for mass production of monodisperse hollow magnetic nanomaterials. The final alpha-Fe2O3 microspheres exhibit special magnetic properties with a small remnant magnetization of 0.09 emu g(-1) and a high coercivity of 1121.67 Oe at room temperature.
引用
收藏
页码：559 / 563
页数：5
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