Electrical-magnetic Properties of Nanocomposites of Conducting Polyaniline and γ-Fe2O3Nanoparticles

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (12): 2290.

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Electrical-magnetic Properties of Nanocomposites of Conducting Polyaniline and γ-Fe₂O₃Nanoparticles

YANG Qing-Lin^1,2, ZHAI Jin¹, SONG Yan-Lin¹, WAN Mei-Xiang¹, JIANG Lei¹, XU Wen-Guo², LI Qian-Shu²

1. Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China;
2. School of Chemical Engineering and Materials Sciences, Beijing Institute of Technology, Beijing 100081, China

Received:2003-01-04 Online:2003-12-24 Published:2003-12-24

Abstract

Abstract: Nanocomposites of PAn-DBSA/γ-Fe₂O₃with electrical and ferromagnetic behavior(σ= 2.18×10^-3-5.00×10^-5S/cm, M_s=3.7-16.6m²·A/kg, H_c=8805.2-9133.1A/m) were prepared by a chemical modification-redoping method in a neutral medium. The products were characterized by TEM, XRD, UV-Vis, four-probe method, and magnetometer. The results indicate that the electrical and magnetic properties of the nanocomposites strongly depend on γ-Fe₂O₃content. With the increase of γ-Fe₂O₃content, the electrical conductivity is decreased and saturation magnetization is increased.

Key words: Polyaniline(PAn-DBSA), γ-Fe₂O₃nanoparticles, Nanocomposites, Property

CLC Number:

O614

TrendMD:

YANG Qing-Lin, ZHAI Jin, SONG Yan-Lin, WAN Mei-Xiang, JIANG Lei, XU Wen-Guo, LI Qian-Shu . Electrical-magnetic Properties of Nanocomposites of Conducting Polyaniline and γ-Fe₂O₃Nanoparticles[J]. Chem. J. Chinese Universities, 2003, 24(12): 2290.

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Electrical-magnetic Properties of Nanocomposites of Conducting Polyaniline and γ-Fe₂O₃Nanoparticles

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