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±êÌ⣺Electrical Conductivity of Polypyrrole/Expanded Graphite composites Prepared by Chemical Oxidation Polymerization
×÷ÕߣºXinming Wu
ÔÓÖ¾£ºSynthetic Metals    Volume 177, 1 August 2013, Pages 60¨C64
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Electrical conductivity of polypyrrole/expanded graphite composites prepared by chemical oxidation polymerization
×÷Õß: Wu, XM (Wu, Xinming)[ 1 ] ; Liu, MM (Liu, Manman)[ 1 ] ; Jia, M (Jia, Min)[ 1 ]
À´Ô´³ö°æÎï: SYNTHETIC METALS  ¾í: 177   Ò³: 60-64   DOI: 10.1016/j.synthmet.2013.06.005   ³ö°æÄê: AUG 1 2013
±»ÒýƵ´Î: 0 (À´×Ô Web of Science)
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ÕªÒª: With excellent electrical properties of polypyrrole (PPy)/expanded graphite (EG) composites have been synthesized by chemical oxidation polymerization. Morphology of the composites has been examined by scanning electron microscopy (SEM), the images reveal that the composites exhibit well dispersed "worms" graphite. The relationship between the morphology and electrical conductivity was studied by X-ray diffraction techniques (XRD), Fourier transform infrared (FT-IR) and four probes resistance tester, the results indicated that the percolation threshold of PPy/EG composites at room temperature was as low as 0.04wt% and the conductivity of 108 S/cm was achieved for 0.2 wt% of EG. The low percolation threshold and well electrical conductivity are attributed to the large surface area, worm pore structure and uniform dispersion of the EG forming conducting bridge in PPy matrix. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
Èë²ØºÅ: WOS:000323592600004
ÎÄÏ×ÀàÐÍ: Article
ÓïÖÖ: English
×÷Õ߹ؼü´Ê: Polypyrrole; Expanded graphite; Electrical conductivity; Composites
KeyWords Plus: CARBON-BLACK; BEHAVIOR
ͨѶ×÷ÕßµØÖ·: Wu, XM (ͨѶ×÷Õß)
        Xian Technol Univ, Sch Mat Sci & Chem Engn, Xian 710032, Peoples R China.
µØÖ·:
        [ 1 ] Xian Technol Univ, Sch Mat Sci & Chem Engn, Xian 710032, Peoples R China
µç×ÓÓʼþµØÖ·: Aimar_wu@yahoo.com.cn
³ö°æÉÌ: ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Web of Science Àà±ð: Materials Science, Multidisciplinary; Physics, Condensed Matter; Polymer Science
Ñо¿·½Ïò: Materials Science; Physics; Polymer Science
IDS ºÅ: 207IR
ISSN: 0379-6779
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