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.
Graphical Abstract
Keywords
Graphene Oxide, Chemically reduced graphene oxide, Polypyrrole, Composite, Supercapacitor
Publication Date
2012-08-28
Online Available Date
2012-01-29
Revised Date
2012-01-17
Received Date
2011-12-26
Recommended Citation
Si-Zhe XU, Xue-Jiao ZHOU, Kun WU, Yong-Qiang YANG, Hai-Xia WU.
Electrochemical Performances of Layered Polypyrrole/Chemically Reduced Graphene Oxide Nanocomposites as Supercapacitor Electrodes[J]. Journal of Electrochemistry,
2012
,
18(4): Article 13.
DOI: 10.61558/2993-074X.2930
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol18/iss4/13
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