Synthesis and characterization of magnetite dodecahedron nanostructure by hydrothermal method

被引：46

作者：

Chen, Fenghua ^{[1
,2
]}

Gao, Qian ^{[1
,2
]}

Hong, Guangyan ^{[1
,2
]}

Ni, Jiazuan ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resources & Appl, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2008年 / 320卷 / 11期

关键词：

magnetite; dodecahedral nanocrystal; EDTA; hydrothermal;

D O I：

10.1016/j.jmmm.2008.02.117

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetite dodecahedral nanocrystals were fabricated using ethlenediamine tetraacetic acid (EDTA)-mediated hydrothermal route. Scanning electron microscopy images displayed that the products were almost dodecahedrons. The length of two different ribs were about 300 and 200 nm, respectively. X-ray diffraction patterns showed that the products were the cubic inverse spinel structure. Fourier transform infrared spectrum directly provided evidence of the EDTA bound to a specific surface of the precipitated magnetic nanocrystal. Reaction medium, temperature and time played important roles in the formation of dodecahedral morphology. Based on the experimental results, the possible formation mechanism of such novel nanostructures was proposed. Also, the magnetic properties of the samples were characterized on a vibrating sample magnetometer (VSM). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1775 / 1780

页数：6

共 20 条

[1] Gold nanocages: Engineering their structure for biomedical applications [J].