Synthesis and characterization of La/Nd-doped barium-ferrite/polypyrrole nanocomposites

被引：49
|
作者：
Xie, Yu [1 ,2 ]
Hong, Xiaowei [1 ]
Gao, Yunhua [2 ]
Li, Mingjun [1 ]
Liu, Jinmei [1 ]
Wang, Juan [1 ]
Lu, Jing [1 ]
机构：
[1] Nanchang Hangkong Univ, Coll Environm & Chem Engn, Nanchang 330063, Peoples R China
[2] Chinese Acad Sci, TIPC, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
来源：
SYNTHETIC METALS | 2012年 / 162卷 / 7-8期
基金：
中国国家自然科学基金;
关键词：
Barium-ferrite; La/Nd-doped; Polypyrrole; In situ chemical polymerization; Electro-magnetic nanocomposites; IRON-OXIDE NANOPARTICLES; MAGNETIC-PROPERTIES; FERRITE; CONDUCTIVITY; POLYPYRROLE; SPECTROSCOPY;
D O I：
10.1016/j.synthmet.2012.02.023
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
La/Nd-doped barium-ferrite/polypyrrole nanocomposites were synthesized by in situ chemical polymerization of pyrrole in the presence of La/Nd-doped barium-ferrite particles. Structural, morphological and electro-magnetic properties of the nanocomposites were performed by Fourier transform infrared (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), four-probe conductivity tester and vibrating sample magnetometer (VSM). The results of XRD indicated that La3+ and Nd3+ had entered into the lattice of barium ferrite. FTIR spectra demonstrated that there were interactions between ferrite particles and PPy. The TEM and SEM studies showed that the composites presented the core-shell structure. Under applied magnetic field, nanocomposites exhibited the hysteresis loops of the ferromagnetic behavior. The saturation magnetization and coercivity of nanocomposites varied with the content of Ba(LaNd)(0.09)Fe11.82O19 particles. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：677 / 681
页数：5
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