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Chemical One Step Method to Prepare Polyaniline Nanofibers with Electromagnetic Function

✍ Scribed by Zhiming Zhang; Junying Deng; Jiaoyan Shen; Meixiang Wan; Zhaojia Chen

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
249 KB
Volume
28
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

A “Chemical one step method” (COSM) is proposed to prepare electromagnetic functional composite nanofibers of polyaniline (PANI/γ‐Fe~2~O~3~) having a diameter of ≈20 nm. In this approach FeCl~3~ is acts as the oxidant either for polymerization of aniline or for preparation of γ‐Fe~2~O~3~ magnets. Besides, it also provides protons produced by the hydrolysis process for doping PANI. It is found that the composite nanofibers have a high conductivity (10^−1^ ∼ 10^0^ S · cm^−1^) and super‐paramagnetic properties (M~s~ = 0.46 ∼ 6.03 emu · g^−1^ and H~c~ = 0) at room temperature, where the conductivity is mainly affected by the molar ratio of FeCl~3~ to aniline monomer whereas the magnetic properties are dominated by the amount of FeCl~2~.

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