Fe3C/Fe nanoparticles with urea: Synthesis, structure and magnetic properties

被引：11

作者：

Wang, Xiaobai ^{[1
,3
]}

Zhang, Daguang ^{[2
]}

Ren, Xiaozhen ^{[1
]}

Gao, Jiajia ^{[1
]}

Han, Yu ^{[5
]}

Chen, Xiaodong ^{[1
]}

Shi, Zhan ^{[4
]}

Yang, Hua ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

[2] Jilin Univ, Hosp 1, Dept Orthopaed Surg, Changchun 130021, Peoples R China

[3] Jilin Inst Chem Technol, Sch Chem & Pharmaceut Engn, Jilin 132022, Peoples R China

[4] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China

[5] Yanbian Univ, Coll Sci, Dept Chem, Yanji 133002, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 420卷

基金：

中国国家自然科学基金;

关键词：

Fe3C/Fe; Nanocomposites; Sol-gel method; Urea; Magnetic properties; IRON CARBIDE; CARBON; PERFORMANCE;

D O I：

10.1016/j.jmmm.2016.07.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fe3C/Fe nanocomposites were synthesized by a sol-gel method. Using urea as carbon source and reduce agent in the reaction process. The CTAB works as the surfactant and the bromine contained in CTAB plays a catalytic role. Appropriate choices of the amount of urea and CTAB, reaction temperature and time are very important to obtain high-quality of products. Above 650 degrees C, the precursor gel turned into the nanocomposites composed of iron carbide and iron. Their structures and magnetic properties are characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM). The possible formation mechanism of as-prepared nanostructures is discussed. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：241 / 244

页数：4

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