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Chinese Journal of Materials Research  2016, Vol. 30 Issue (3): 186-191    DOI: 10.11901/1005.3093.2015.361
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Preparation and Capacitance Properties of Polyaniline/Carbon Microcoil Composites
ZHU Shize, TANG Guoxia, WANG Jian, LU Juan, ZHU Yabo**()
(School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China)
Cite this article: 

ZHU Shize, TANG Guoxia, WANG Jian, LU Juan, ZHU Yabo. Preparation and Capacitance Properties of Polyaniline/Carbon Microcoil Composites. Chinese Journal of Materials Research, 2016, 30(3): 186-191.

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Abstract  

Composites of polyaniline/carbon microcoils (PANI/CMCs) were prepared by microemulsion-polymerization method. The observation by scanning electron microscopy (SEM) showed that the surface of the CMCs became rough due to the coverage of PANI on the surface after the synthesis process. The infrared spectroscopy measurement proved the presence of chemical bonding between PANI and CMCs. When the volume ratio of chloroform, as co-emulsifier, to the total reaction matters was 1: 24, the maximum amount of PANI coverage can be acquired, which well grafted on the surface of CMCs. Results of constant current charge-discharge and cyclic voltammetry tests show that in comparison with the single PANI or CMCs, the composites possess superior capacitive performance with a specific capacitance 134.8 F·g-1 and an excellent cycling stability with a remaining capacitance 63.3% after 750 cycles.

Key words:  composites      carbon microcoil      polyaniline      microemulsion polymerization      capacitive properties     
Received:  29 June 2015     
ZTFLH:  TB332  
Fund: *Supported by Students Innovation-University-Level Key Program No. XZD1029014188.
About author:  **To whom correspondence should be addressed, Tel: 13952267189, E-mail: zhuyabo@163.com

URL: 

https://www.cjmr.org/EN/10.11901/1005.3093.2015.361     OR     https://www.cjmr.org/EN/Y2016/V30/I3/186

Fig.1  SEM images of H-CMCs (a), PANI (b), PANI/H-CMCs-1 (c), PANI/H-CMCs-2 (d) and PANI/H-CMCs-3 (e)
Fig.2  FT-IR spectra of H-CMCs (a), PANI (b) and PANI/H-CMCs-2(c)
Fig.3  FT-IR spectra of PANI/H-CMCs-1 (a) and PANI/H-CMCs-3 (b)
Fig.4  Schematic of microemulsion synthetic PANI/H-CMCs composite
Fig.5  Charge-discharge curves of H-CMCs (a), PANI (b) and PANI/H-CMCs-2 (c) at 500 mAg-1
Fig.6  CV curves of PANI (a) and PANI/H-CMCs-2 (b)
Fig.7  Variation of specific capacitance of PANI/H-CMCs-2 and PANI with cycle numbers at a current density of 1 Ag-1
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