Journal
RSC ADVANCES
Volume 5, Issue 20, Pages 15096-15102Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra15258a
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Funding
- National Natural Science Foundation of China [51363005]
- Scientific Foundation of Colleges and Universities of Guangxi Province [2013YB115]
- Innovation Project of Guangxi Graduate Education [YCSZ2013076]
- Guangxi Funds for Specially-appointed Expert
- Guangxi Small Highland Innovation Team of Talents in Colleges and Universities
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The electrode composites composed of conductive polypyrrole and graphene for electrochemical capacitors have attracted extensive attention due to their potential application. Here a green synthesis method was used to fabricate hierarchical nanostructured polypyrrole/graphene composites by using vitamin C as a reducing agent. The as-prepared nanocomposites were characterized by FTIR, Raman, XRD, TGA, SEM and TEM techniques. The results showed that the polypyrrole chains in the PPy/rGO-CTAB composite successfully inserted into the two-dimensional space of graphene layers. In addition, the electrochemical performances of composites were measured with cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) experiments. The results indicated that PPy/rGO-CTAB composites possessed better thermal stability, higher specific capacitance, lower resistance, relatively better cyclic properties and faster response to oxidation/reduction than both PPy/rGO composites without addition of CTAB and rGO.
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