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Issue 16, 2015
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Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

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Abstract

Carbon fabrics (CFs) coated with 5.0, 15.0 and 30.0 wt% polyaniline (PANI) (PANI–CFs) have been synthesized by soaking CFs in a 1.0 wt% PANI formic acid solution. The real permittivity (ε′) of the PANI–CFs was increased with increasing PANI loading, while the imaginary permittivity (ε′′) was decreased. The resistivity of the PANI–CFs decreased with increasing temperature in both the vertical and diagonal directions. The conductivity increased more obviously with increasing PANI loading along the diagonal direction than the vertical direction, indicating that PANI has improved the conductivity more significantly in the diagonal direction. The maximum negative magnetoresistance of −7.5% and −3.5% was detected for the PANI–CFs with 30 wt% PANI loading in the vertical and diagonal directions, respectively.

Graphical abstract: Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

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Publication details

The article was received on 12 Nov 2014, accepted on 25 Feb 2015 and first published on 27 Feb 2015


Article type: Paper
DOI: 10.1039/C4TC02578D
Citation: J. Mater. Chem. C, 2015,3, 3989-3998
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    Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

    B. Qiu, J. Guo, Y. Wang, X. Wei, Q. Wang, D. Sun, M. A. Khan, D. P. Young, R. O'Connor, X. Huang, X. Zhang, B. L. Weeks, S. Wei and Z. Guo, J. Mater. Chem. C, 2015, 3, 3989
    DOI: 10.1039/C4TC02578D

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