Facilely prepared polypyrrole-graphene oxide-sodium dodecylbenzene sulfonate nanocomposites by in situ emulsion polymerization for high-performance supercapacitor electrodes
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- 作者：Yunqiang Zhang (1)
Mei Li (1) (2) (3)
Lanlan Yang (1)
Kaihua Yi (1)
Zhen Li (1)
Jinshui Yao (1) (2) (3) - 关键词：PPyGO ; SDBS nanocomposites ; Supercapacitors ; Specific capacitance ; Rate capacity ; Cycling stability
- 刊名：Journal of Solid State Electrochemistry
- 出版年：2014
- 出版时间：August 2014
- 年：2014
- 卷：18
- 期：8
- 页码：2139-2147
- 全文大小：1,677 KB
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Mei Li (1) (2) (3)
Lanlan Yang (1)
Kaihua Yi (1)
Zhen Li (1)
Jinshui Yao (1) (2) (3)
1. School of Materials Science and Engineering, Qilu University of Technology, Daxue Road, Western University Science Park, 250353, Jinan, Shandong, People’s Republic of China
2. Shandong Provincial Key Laboratory of Processing and Testing Technology of Glass and Functional Ceramics, Jinan, 250353, People’s Republic of China
3. Key Laboratory of Amorphous and Polycrystalline Materials, Qilu University of Technology, Jinan, 250353, People’s Republic of China - ISSN：1433-0768
文摘
The layered polypyrrole-graphene oxide-sodium dodecylbenzene sulfonate (PPyGO-SDBS) nanocomposites were facilely fabricated via an in situ emulsion polymerization method with the assistance of SDBS as dopant and stabilizer. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and electrochemical performance were employed to analyze the structure and the characteristics of the composites. The results showed that SDBS played an important role in improving the electrochemical performance of the PPyGO-SDBS, by dispersing the PPy between the layers of the GO. The obtained PPyGO-SDBS exhibited remarkable performance as an electrode material for supercapacitors, with a specific capacitance as high as 483?F?g? at a current density of 0.2?A?g? when the mass ratio of pyrrole to GO was 80:20. The attenuation of the specific capacitance was less than 20?% after 1,000 charge–discharge processes, supporting the idea that PPy inserted successfully into the GO interlayers. The excellent electrochemical performance seemed to arise from the synergistic effect between the PPy and the GO and the dispersion of the PPy induced by SDBS.