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Citation: LI Juan, CUI Lia. Synthesis of MnO₂/PPy/PANI Nanotubular Ternary Composites for Electrochemical Capacitors[J]. Chinese Journal of Applied Chemistry, ;2011, 28(3): 297-301. doi: 10.3724/SP.J.1095.2011.00288 shu

Synthesis of MnO₂/PPy/PANI Nanotubular Ternary Composites for Electrochemical Capacitors

LI Juan ^a,b,, ,
CUI Lia ^a

1.
a College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046;
2.
b School of Science, Xi’an Jiaotong University, Xi’an 710049

Corresponding author: LI Juan,
Received Date: 17 May 2010
Available Online: 10 July 2010
Fund Project: 国家自然科学基金(20663006)资助项目 (20663006)

One-dimensional nanotubular MnO₂/PPy/PANI ternary composites were prepared by in-situ chemical oxidative polymerization of pyrrole in the host of MnO₂ and PANI, using methyl orange/FeCl₃ as a reactive self-degraded soft-template. Their morphologies and microstructures were characterized by X-ray diffraction(XRD) analysis, infrared analysis, transmission electron microscopy(TEM). The electrochemical properties of the ternary composites for electrochemical capacitors were investigated by cyclic voltammogram (CV), galvanostatic charge/discharge tests. The results indicated that the ternary composites were characterized with greater specific capacitance than the binary composite of MnO₂/PPy due to the synergy effect of PPy, PANI, and MnO₂. Hollow tube-like structure of PPy with high surface area might enhance the specific capacitance. The materials had also given a good charge-discharge cycle performance and a maximum specific capacitance of 458.4 F/g was obtained.
- MnO₂/PPy/PANI,
- nanotube composites materials,
- electrochemical capacitor
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Synthesis of MnO₂/PPy/PANI Nanotubular Ternary Composites for Electrochemical Capacitors