Hydrothermal growth of octahedral Fe3O4 crystals

被引：43

作者：

Peng, Dengfeng ^{[1
]}

Beysen, Sadeh ^{[1
]}

Li, Qiang ^{[1
]}

Jian, Jikang ^{[1
]}

Sun, Yanfei ^{[1
]}

Jiwuer, Jilili ^{[1
]}

机构：

[1] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Xinjiang, Peoples R China

来源：

PARTICUOLOGY | 2009年 / 7卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fe3O4; octahedron; Hydrothermal method; Magnetite; HOLLOW SPHERES; NANOPARTICLES; MAGNETITE; FABRICATION; MICROCRYSTALS; MONODISPERSE; NANOWIRES; ROUTE;

D O I：

10.1016/j.partic.2008.11.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper reports the growth of octahedral magnetic Fe3O4 particles from iron powders via a simple alkaline hydrothermal process. The chemical compositions and morphologies of the as-grown Fe3O4 particles were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), and scanning electron microscopy (SEM). Structure characterization showed that the phase structure of the prepared particles evolved from alpha-Fe to pure Fe3O4 with increasing concentration of KOH, indicating the important role of KOH concentration on the formation of the magnetite octahedron. The magnetic properties of samples were also studied by means of a vibrating sample magnetometer (VSM). The pure magnetite Fe3O4 octahedrons exhibited a relatively high Saturation magnetization of 96.7 emu/g. (C) 2009 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

引用

页码：35 / 38

页数：4

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