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Acta Phys. Chim. Sin.  2013, Vol. 29 Issue (11): 2385-2391    DOI: 10.3866/PKU.WHXB201309051
Preparation of Polypyrrole/Sodium Alginate Nanospheres and Their Application for High-Performance Supercapacitors
MA Guo-Fu1, MU Jing-Jing1, ZHANG Zhi-Guo1, SUN Kan-Jun2, PENG Hui1, LEI Zi-Qiang1
1 Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China;
2 College of Chemistry and Environmental Science, Lanzhou City University, Lanzhou 730070, P. R. China
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Polypyrrole/sodium alginate (PPy/SA) nanospheres are successfully synthesized by oxidative polymerization of pyrrole using sodium alginate as structural templating agent. The morphology and structure of the PPy/SAnanospheres were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Their electrochemical properties are investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge tests. The PPy/SAnanospheres exhibit a high specific capacitance of 347 F·g-1 at a charge-discharge current density of 1 A·g-1 in 1 mol·L-1 KCl electrolyte. Unlike pure PPy, there was little attenuation in the capacitance of the PPy/SAnanospheres over 500 continuous charging-discharging cycles demonstrating good electrochemical stability. This result indicates that PPy/SAnanospheres are a promising candidate for high-performance supercapacitors.

Key wordsPolypyrrole      Sodium alginate      Nanosphere      Supercapacitor      Electrode material     
Received: 27 May 2013      Published: 05 September 2013
MSC2000:  O646  

The project was supported by the National Natural Science Foundation of China (21164009, 21174114) and Program for Changjiang Scholars and Innovative Research Team in University, China (IRT1177).

Corresponding Authors: MA Guo-Fu     E-mail:
Cite this article:

MA Guo-Fu, MU Jing-Jing, ZHANG Zhi-Guo, SUN Kan-Jun, PENG Hui, LEI Zi-Qiang. Preparation of Polypyrrole/Sodium Alginate Nanospheres and Their Application for High-Performance Supercapacitors. Acta Phys. Chim. Sin., 2013, 29(11): 2385-2391.

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