Sonochemical synthesis of magnetic properties of Fe3O4/CNT nanocomposites

Sonochemical synthesis of magnetic properties of Fe3O4/CNT nanocomposites
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Fe3O4/CNT纳米复合材料磁性能的声化学合成

DOI:
10.1080/10584587.2017.1330633
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发表时间:
2017-03
影响因子:
0.7
通讯作者:
Ran Maofei
Ran Maofei
中科院分区:
工程技术4区
文献类型:
--
作者:
Yu Rui;Jiang Chengfa;Chu Wei;Zhao Jianghao;Sun Wenjing;Ran Maofei

文献摘要

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摘要采用简单的一步法制备了Fe3O4/CNT杂化材料。通过透射电子显微镜、X射线衍射仪、傅立叶变换红外光谱、振动和样品磁强计等手段对所制备的复合材料进行了表征。结果表明,所制备的Fe3O4/CNT纳米复合材料具有超顺磁性。透射电子显微镜观察表明,生成的Fe3O4颗粒被修饰在碳纳米管的外壁上。随着超声次数的增加,Fe3O4颗粒的平均粒径发生变化。对于Fe3O4/CNT复合材料,颗粒尺寸越大,磁响应越大。
ABSTRACT Fe3O4/CNT hybrids have been successfully synthesized through simple one-step methods. The resulting composites were characterized via transmission electron microscopy (TEM), X-ray diffractometry (XRD), Fourier transform infrared (FTIR) and vibration and sample magnetometry (VSM) approaches. It was found that those Fe3O4/CNT nanocomposites were superparamagnetic. TEM observation indicated that the produced Fe3O4 particles were decorated the external walls of CNTs. The increasing of the ultrasonic times result in the changes in the average particle sizes of the Fe3O4 particles. For the Fe3O4/CNT composites, larger particle sizes lead to the greater magnetic responses.
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