Fabrication of electromagnetic Fe3O4@polyaniline nanofibers with high aspect ratio

Yong Ma; Mingtao Qiao; Yanhui Chen; Chunping Hou; Baoliang Zhang; Qiuyu Zhang

doi:10.1039/C4RA14723E

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Fabrication of electromagnetic Fe₃O₄@polyaniline nanofibers with high aspect ratio†

Yong Ma,^a Mingtao Qiao,^a Yanhui Chen,^a Chunping Hou,^a Baoliang Zhang^a and Qiuyu Zhang*^a

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* Corresponding authors

^a Key Laboratory of Applied Physics and Chemistry in Space of Ministry of Education, School of Science, Northwestern Polytechnical University, Xi'an 710072, P. R. China
E-mail: qyzhang@nwpu.edu.cn

Abstract

Electromagnetic Fe₃O₄@polyaniline (PANI) nanofibers with high aspect ratio were realized by combining magnetic-field-induced (MFI) self-assembly and in situ surface polymerization of aniline. The key to fabrication is to induce chaining of the amino-Fe₃O₄ microspheres during the PANI coating process, which allows additional deposited PANI to warp entire chains into nanofibers. Hydrogen bonds are thought to be the driving force that makes aniline form a PANI coating shell instead of irregular sheets. Compared to the Fe₃O₄@PANI microspheres, higher magnetization saturation value and conductivity value were achieved in the Fe₃O₄@PANI nanofibers, which hold high promise for potential applications in microwave absorbents, electromagnetic shielding coatings, and other usage associated with conventional electromagnetic techniques.

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Article information

DOI: https://doi.org/10.1039/C4RA14723E
Article type: Paper
Submitted: 17 Nov 2014
Accepted: 06 Jan 2015
First published: 06 Jan 2015

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RSC Adv., 2015,5, 9986-9992

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Fabrication of electromagnetic Fe₃O₄@polyaniline nanofibers with high aspect ratio

Y. Ma, M. Qiao, Y. Chen, C. Hou, B. Zhang and Q. Zhang, RSC Adv., 2015, 5, 9986 DOI: 10.1039/C4RA14723E

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