Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

Bin Qiu; Jiang Guo; Yiran Wang; Xin Wei; Qiang Wang; Dezhi Sun; Mojammel A. Khan; David P. Young; Ryan O'Connor; Xiaohua Huang; Xin Zhang; Brandon L. Weeks; Suying Wei; Zhanhu Guo

doi:10.1039/c4tc02578d

Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

Bin Qiu, Jiang Guo, Yiran Wang, Xin Wei, Qiang Wang, Dezhi Sun, Mojammel A. Khan, David P. Young, Ryan O'Connor, Xiaohua Huang, Xin Zhang, Brandon L. Weeks, Suying Wei, Zhanhu Guo

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

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.

Original language	English
Pages (from-to)	3989-3998
Number of pages	10
Journal	Journal of Materials Chemistry C
Volume	3
Issue number	16
DOIs	https://doi.org/10.1039/c4tc02578d
State	Published - Apr 28 2015

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@article{67c18dfd2dd94609b2d37b9af6b4ac68,

title = "Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics",

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.",

author = "Bin Qiu and Jiang Guo and Yiran Wang and Xin Wei and Qiang Wang and Dezhi Sun and Khan, {Mojammel A.} and Young, {David P.} and Ryan O'Connor and Xiaohua Huang and Xin Zhang and Weeks, {Brandon L.} and Suying Wei and Zhanhu Guo",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2015.",

year = "2015",

month = apr,

day = "28",

doi = "10.1039/c4tc02578d",

language = "English",

volume = "3",

pages = "3989--3998",

journal = "Journal of Materials Chemistry C",

issn = "2050-7534",

number = "16",

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TY - JOUR

T1 - Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

AU - Qiu, Bin

AU - Guo, Jiang

AU - Wang, Yiran

AU - Wei, Xin

AU - Wang, Qiang

AU - Sun, Dezhi

AU - Khan, Mojammel A.

AU - Young, David P.

AU - O'Connor, Ryan

AU - Huang, Xiaohua

AU - Zhang, Xin

AU - Weeks, Brandon L.

AU - Wei, Suying

AU - Guo, Zhanhu

PY - 2015/4/28

Y1 - 2015/4/28

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84927729656&partnerID=8YFLogxK

U2 - 10.1039/c4tc02578d

DO - 10.1039/c4tc02578d

M3 - Article

AN - SCOPUS:84927729656

SN - 2050-7534

VL - 3

SP - 3989

EP - 3998

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

IS - 16

ER -

Dielectric properties and magnetoresistance behavior of polyaniline coated carbon fabrics

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