Preparation, Characterization and Properties of Polyaniline-barium Ferrite Nanocomposite

Chem. J. Chinese Universities

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Preparation, Characterization and Properties of Polyaniline-barium Ferrite Nanocomposite

LI Yuan-Xun¹*, LIU Ying-Li¹, ZHANG Huai-Wu¹, LING Wei-Wei¹, XIE Yun-Song¹, XIAO John-Qiang²

1. State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China;
2. Department of Physics and Astronomy, University of Delaware, Delaware 19716, USA

Received:2007-07-16 Revised:1900-01-01 Online:2008-03-10 Published:2008-03-10
Contact: LI Yuan-Xun

Abstract

Abstract: The polyaniline(PANI)-barium ferrite nanocomposite with magnetic behavior was synthesized by in situ polymerization of aniline in the presence of BaFe₁₂O₁₉ nanoparticles with 60—80 nm diameters. The structure, morphology and magnetic properties of the samples were characterized by powder X-ray diffraction(XRD), Fourier transform infrared(FTIR) spectrum, scanning electron microscopy(SEM), transmission electron microscopy(TEM) and vibrating sample magnetometer(VSM) technique. The results of spectroanalysis indicate that there was interaction between PANI chains and ferrite particles. The composite exhibited the hysteresis loops of the ferromagnetic nature. The saturation magnetization and coercivity of composite decreased greatly compared with barium ferrite. The absorbing bandwidth less than -20 dB is 15.07 GHz. And the polymerization mechanism and interactions in the nanocomposites were also discussed.

Key words: Polyaniline, Barium ferrite, Magnetic material

CLC Number:

O631.1

TrendMD:

LI Yuan-Xun¹*, LIU Ying-Li¹, ZHANG Huai-Wu¹, LING Wei-Wei¹, XIE Yun-Song¹, XIAO John-Qiang². Preparation, Characterization and Properties of Polyaniline-barium Ferrite Nanocomposite[J]. Chem. J. Chinese Universities, doi: .

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Preparation, Characterization and Properties of Polyaniline-barium Ferrite Nanocomposite

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