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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 Íò·Ö¸Ðл£¡ |
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aimar_wu
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3Â¥2013-10-22 10:07:51
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aimar_wu: ½ð±Ò+5, ·Ç³£¸Ðл£¡ 2013-10-22 10:26:44
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ÒÑÊÕ¼~ 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) ÒýÓõIJο¼ÎÄÏ×: 23 [ ²é¿´ Related Records ] ÒýÖ¤¹ØÏµÍ¼ 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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