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Acta Phys. Chim. Sin.  2012, Vol. 28 Issue (03): 609-614    DOI: 10.3866/PKU.WHXB201201162
Carbon Nanotube/Polyaniline/Graphene Composite Paper and Its Electrochemical Capacitance Behaviors
JIN Yu1,2, CHEN Hong-Yuan2,3, CHEN Ming-Hai2, LIU Ning1, LI Qing-Wen2
1. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, P. R. China;
2. Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, Jiangsu Province, P. R. China;
3. Graduate University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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Abstract  Flexible carbon nanotube/polyaniline/graphene (CNT/PANI/GR) composite papers were prepared by electrochemical polymerization of PANI on cyclic voltammetry electrochemical oxidized CNT (CV-CNT) papers and the successive adsorption of GR. CNT, PANI, and GR provided a flexible conducting network skeleton, faradaic pseudocapacitive material, and surface conductivity modification properties, respectively. The composite papers exhibited a sandwich structure with an outer layer of GR and an inner layer composite network of CV-CNT/PANI, taking full advantage of the superior properties of the three components. The structure and morphology were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The chemical capacitance characteristics were studied thoroughly. It was shown that PANI nanowhiskers wrapped around the CV-CNT surface evenly. The composite paper exhibited enhanced capacitance and high current charge/discharge characteristics as a supercapacitor electrode. The specific capacitance level could reach 415 F·g-1 at a current density of 0.5 A·g-1 and maintain a level of 106 F·g-1 at the higher current density of 20 A·g-1. In the protection of GR, the composite maintained a higher capacitance than CV-CNT/PANI after 1000 cycles, suggesting that the CV-CNT/PANI/GR composite would be an ideal flexible electrode material for a supercapacitor.

Key wordsCarbon nanotube      Polyaniline      Graphene      Electrochemical polymerization      Capacitance     
Received: 09 October 2011      Published: 16 January 2012
MSC2000:  O646  

The project was supported by the Science and Technology Project of Suzhou, China (SYG201018) and Production and Research Collaborative Innovation Project of Jiangsu Province, China (BY2011178).

Corresponding Authors: CHEN Ming-Hai, LIU Ning     E-mail:;
Cite this article:

JIN Yu, CHEN Hong-Yuan, CHEN Ming-Hai, LIU Ning, LI Qing-Wen. Carbon Nanotube/Polyaniline/Graphene Composite Paper and Its Electrochemical Capacitance Behaviors. Acta Phys. Chim. Sin., 2012, 28(03): 609-614.

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