以吡咯为单体，多壁碳纳米管和氧化石墨烯为模板，过硫酸铵为氧化剂，采用原位化学聚合法制备了聚吡咯／多壁碳纳米管／氧化石墨烯（ PPy／MWNTs／GO）复合材料。利用傅里叶变换红外光谱（ FTIR）、X射线衍射谱（ XRD）、扫描电镜（ SEM）、循环伏安法（ CV）和电化学交流阻抗谱（ EIS）对制备复合材料的结构、微观形貌和电化学性能进行了研究，探讨了多壁碳纳米管／氧化石墨烯比例、吡咯用量对复合材料电容性能的影响。研究结果显示，PPy／MWNTs／GO复合材料具有较大的比电容和良好的循环稳定性，且具有较小的电荷转移电阻，接近于理想的超级电容器用电极材料。
Polypyrrole/multi?walled carbon nanotubes/graphene oxide ( PPy/MWNTs/GO ) composites are prepared by in situ chemical polymerization using pyrrole (Py) as monomer, MWNTs and GO as templates, and ammonium persulfate as an oxidant. The structure, morphology and electrochemical performance of the resulting composites are investigated by Fourier transform infrared ( FTIR ) spectroscopy, X?ray diffraction ( XRD ) , scanning electron microscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy ( EIS) techniques, respectively. Furthermore, the relationship between capacitance properties of the composites and effect of the ratio of MWNTs and GO, and the dosage of pyrrole are also discussed in detail. The results indicate that the PPy/MWNTs/GO composites have higher specific capacitance and good cycle stability, while have low charge transfer resistance, which are close to the ideal electrode materials for supercapacitors.
参考文献
| [1] | Zhi Chen;Dingshan Yu;Wei Xiong;Peipei Liu;Yong Liu;Liming Dai.Graphene-Based Nanowire Supercapacitors[J].Langmuir: The ACS Journal of Surfaces and Colloids,201412(12):3567-3571. |
| [2] | Chemical Reviews Group.What Are Batteries,Fuel Cells,and Supercapacitors?[J].Chemical Reviews,200410(10):4245-4269. |
| [3] | Hao Jiang;Pooi See Lee;Chunzhong Li.3D carbon based nanostructures for advanced supercapacitors[J].Energy & environmental science: EES,20131(1):41-53. |
| [4] | ChunHui Wu;SiXu Deng;Hao Wang.Preparation of Novel Three-Dimensional NiO/Ultrathin Derived Graphene Hybrid for Supercapacitor Applications[J].ACS applied materials & interfaces,20142(2):1106-1112. |
| [5] | 冯辉霞;王滨;谭琳;雒和明;张德懿.导电聚合物基超级电容器电极材料研究进展[J].化工进展,2014(3):689-695. |
| [6] | Gui-Jing Liu;Le-Qing Fan;Fu-Da Yu;Ji-Huai Wu;Lu Liu;Zhao-Yuan Qiu;Qin Liu.Facile one-step hydrothermal synthesis of reduced graphene oxide/Co_3O_4 composites for supercapacitors[J].Journal of Materials Science,201324(24):8463-8470. |
| [7] | Weikun Li;Yu Jun Yang.The reduction of graphene oxide by elemental copper and its application in the fabrication of graphene supercapacitor[J].Journal of solid state electrochemistry,20146(6):1621-1626. |
| [8] | Hao-Hsiang Chang;Chih-Kai Chang;Yu-Chen Tsai.Electrochemically synthesized graphene/polypyrrole composites and their use in supercapacitor[J].Carbon: An International Journal Sponsored by the American Carbon Society,20126(6):2331-2336. |
| [9] | Pan Wang;Yuying Zheng;Baoming Li.Preparation and electrochemical performance of poly(3-acetylpyrrole)/ multi-walled carbon nanotubes composites[J].Materials Letters,2013Feb.1(Feb.1):147-150. |
| [10] | Pan Wang;YuyingZheng;BaomingLi.Preparation and electrochemical properties of polypyrrole/graphite oxide composites with various feed ratios of pyrrole to graphite oxide[J].Synthetic Metals,2013:33-39. |
| [11] | Nanda Gopal Sahoo;Yong Chae Jung;Hyang Hwa So.Polypyrrole coated carbon nanotubes: Synthesis, characterization, and enhanced electrical properties[J].Synthetic Metals,20078/9(8/9):374-379. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%