Magnetic and conducting Fe3O4-polypyrrole nanoparticles with core-shell structure
作者： Jianguo Deng , Yuxing Peng , Chuanlan He , Xingping Long , Pei Li
DOI: 10.1002/PI.1237
关键词:
摘要: Magnetic and conducting Fe3O4–polypyrrole nanoparticles with core-shell structure were prepared in the presence of Fe3O4 magnetic fluid aqueous solution containing sodium dodecylbenzenesulfonate (NaDS) as a surfactant dopant. Both conductivity magnetization composites depend strongly on content doping degree. With increase composite, at room temperature decreases, but saturated coercive force increase. Transmission electron microscopy (TEM) images particles show almost spherical diameters ranging from 20 to 30 40 nm, respectively. The thermal stability is higher than that pure polypyrrole. Studies IR, UV–visible X-ray photoelectron spectroscopy (XPS) spectra suggest increased may be due interactions between polypyrrole backbone. Copyright © 2003 Society Chemical Industry
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