Low-temperature synthesis and growth of superparamagnetic Zn0.5Ni0.5Fe2O4 nanosized particles

被引：65

作者：

Li, Xia ^{[1
]}

Wang, Guisu ^{[1
]}

机构：

[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 09期

关键词：

Mono-disperse particle; Hydrothermal method; Activation energy; Crystal growth; Superparamagnetic; SURFACE SPIN DISORDER; ZN FERRITE POWDERS; MAGNETIC-PROPERTIES; NANOPARTICLES; COBALT; CRYSTALLINE; COFE2O4; STATE; CO;

D O I：

10.1016/j.jmmm.2008.11.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mono-disperse spinel Ni0.5Zn0.5Fe2O4 nanosized particles have been synthesized via a hydrothermal method at low temperature. X-ray diffraction (XRD), transmission electron microscope (TEM) and high-resolution transmission electron microscope (HRTEM) analysis indicated that the synthesized nanocrystals were of pure cubic spinel structure with the size about 6-20 nm. The activation energy of grain growth is 35.06 kJ/mol experimented by the Arrhenius equation. A primary experimental model was put forward to shed light on the growth mechanism of crystallined spinel Ni-Zn ferrite nanosized particles under hydrothermal conditions. The magnetic measurements shows that the prepared Ni0.5Zn0.5Fe2O4 nanoparticle possess good superparamagnetic behavior. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1276 / 1279

页数：4

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