中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (03): 297-301.DOI: 10.3724/SP.J.1095.2011.00288

• 研究论文 • 上一篇    下一篇

MnO2/PPy/PANI三元纳米管复合材料的合成及其电化学电容性能

李娟1,2,*,崔利1   

  1. (1.新疆大学化学化工学院 乌鲁木齐 830046;2.西安交通大学理学院 西安 710049)
  • 收稿日期:2010-05-17 修回日期:2010-06-30 出版日期:2011-03-10 发布日期:2011-03-10
  • 通讯作者: 李娟，副教授; E-mail:lj-panpan@163.com; Tel/Fax:0991-8582887; 研究方向：储能电极材料的制备和性能
  • 作者简介: 李娟，女，副教授；Ｅ-ｍａｉｌ：ｌｊｐａｎｐａｎ＠１６３．ｃｏｍ；研究方向：储能电极材料的制备和性能
  • 基金资助:
    国家自然科学基金（20663006）资助项目

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

LI Juan1,2*, CUI Li1   

  1. (1.College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830046;
    2.School of Science,Xi′an Jiaotong University,Xi′an 710049)
  • Received:2010-05-17 Revised:2010-06-30 Published:2011-03-10 Online:2011-03-10

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摘要：

在聚苯胺（PANI）和二氧化锰（MnO2）存在的条件下，以FeCl3/甲基橙为模板，通过化学氧化法聚合吡咯(Py)单体，制备MnO2/PPy/PANI纳米管复合材料。 利用X射线衍射、透射电子显微镜、红外光谱和电化学测试等多种测试技术对复合材料进行物性表征和电化学电容性能测试，并讨论了不同含量的PANI对复合物材料的结构和性能的影响。 结果表明，由于PANI、MnO2与PPy三者的相互协同作用，以及材料管状结构的大比表面积，使三元复合材料具有比二元复合材料要大的电化学活性。 所合成的三元复合材料最大比容量达到458.4 F/g。

关键词: MnO2/PPy/PANI, 纳米管复合材料, 电化学电容

Abstract:

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.

Key words: MnO2/PPy/PANI, nanotube composites materials, electrochemical capacitor

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