聚吡咯/氧化石墨烯层状复合材料的制备及其在超级电容器中的应用（英文）

doi:10.61558/2993-074X.2930

电化学（中英文） ›› 2012, Vol. 18 ›› Issue (4): 348-358. doi: 10.61558/2993-074X.2930

聚吡咯/氧化石墨烯层状复合材料的制备及其在超级电容器中的应用（英文）

许思哲, 周雪皎, 吴坤, 杨永强, 吴海霞*

上海交通大学微纳米科学与技术研究院，上海 200240

收稿日期:2011-12-26 修回日期:2012-01-17 出版日期:2012-08-28 发布日期:2012-01-29
通讯作者: 吴海霞 E-mail:haixiawu@sjtu.edu.cn
基金资助:
This work was supported by the National Natural Science Foundation of China (No. 20906055), National “973 Program” (No. 2010CB933900) and the State Key Laboratory of Bioreactor engineering (No. 2060204).

Electrochemical Performances of Layered Polypyrrole/Chemically Reduced Graphene Oxide Nanocomposites as Supercapacitor Electrodes

XU Si-Zhe, ZHOU Xue-Jiao, WU Kun, YANG Yong-Qiang, WU Hai-Xia*

National Key Laboratory of Micro/Nano Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240, China)

Received:2011-12-26 Revised:2012-01-17 Published:2012-08-28 Online:2012-01-29
Contact: WU Hai-Xia E-mail:haixiawu@sjtu.edu.cn

摘要/Abstract

摘要： 论文通过将吡咯单体在低温下与氧化石墨烯进行原位聚合，获得聚吡咯/石墨烯（Ppy/CRGO）复合材料. 采用场发射电子显微镜（FESEM）、红外 (FT-IR)和热重 (TGA)对复合物的表面形貌、结构进行表征. FESEM结果表明，通过控制氧化石墨烯（GO）和吡咯单体的质量比例，可以对复合物的层状和厚度进行调控. FT-IR和TGA结果表明聚吡咯（Ppy）是通过化学键合的方式与氧化石墨烯复合在一起。通过机械冷压法将粉末状Ppy/CRGO复合物压成圆片电极，并探讨了石墨烯和聚吡咯复合比例、反应时间、烘干温度、孔隙率等因素对Ppy/CRGO复合物电极的电学和电化学性能的影响. 结果表明，Ppy与CRGO质量比为10:1所制得的Ppy/CRGO复合物的电容量为421 F?g-1，通过在电极中引入孔隙，电容量能进一步提升为509 F?g-1.

关键词: 氧化石墨烯, 化学还原石墨烯, 聚吡咯, 复合物, 超级电容

Abstract: Nanocomposites of polypyrrole (Ppy) and chemically reduced graphene oxide (CRGO), Ppy/CRGO, have been fabricated through in-situ polymerization of pyrrole on graphene oxide (GO) sheets. The as-synthesized Ppy/CRGO composites were characterized complementarily using scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and Fourier transformed infrared spectroscopy (FT-IR). By controlling the initial ratio of the GO to pyrrole, the layered composites could be obtained and their thickness could be tuned properly. The Ppy/CRGO electrodes were prepared using a mechanical compressing technique and their electrical conductivity and electrochemical properties were characterized systematically. We demonstrated that as electrodes for supercapacitor, the Ppy/CRGO composites with Ppy to CRGO ratio of 10:1 showed a competitive capacitance of 421 F?g-1 that could be further increased to 509 F?g-1 by introducing pores in it, which is higher than that of Ppy alone. Given the manifest electrical and electrochemical properties, we envisage that the Ppy/CRGO composites should find applications in supercapacitors.

Key words: Graphene Oxide, Chemically reduced graphene oxide, Polypyrrole, Composite, Supercapacitor

中图分类号:

O631
TB332

许思哲, 周雪皎, 吴坤, 杨永强, 吴海霞. 聚吡咯/氧化石墨烯层状复合材料的制备及其在超级电容器中的应用（英文）[J]. 电化学（中英文）, 2012, 18(4): 348-358.

XU Si-Zhe, ZHOU Xue-Jiao, WU Kun, YANG Yong-Qiang, WU Hai-Xia. Electrochemical Performances of Layered Polypyrrole/Chemically Reduced Graphene Oxide Nanocomposites as Supercapacitor Electrodes[J]. Journal of Electrochemistry, 2012, 18(4): 348-358.

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https://electrochem.xmu.edu.cn/CN/Y2012/V18/I4/348

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聚吡咯/氧化石墨烯层状复合材料的制备及其在超级电容器中的应用（英文）

Electrochemical Performances of Layered Polypyrrole/Chemically Reduced Graphene Oxide Nanocomposites as Supercapacitor Electrodes

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