Preparation and electrochemistry of one-dimensional nanostructured MnO2/PPy composite for electrochemical capacitor

✍ Scribed by Juan Li; Li Cui; Xiaogang Zhang

• Book ID: 104001904
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 830 KB
• Volume: 256
• Category: Article
• ISSN: 0169-4332
• DOI: 10.1016/j.apsusc.2010.02.028

✦ Synopsis

One-dimensional nanostructured manganese dioxide/polypyrrole (MnO 2 /PPy) composite was prepared by in situ chemical oxidation polymerization of pyrrole in the host of inorganic matrix of MnO 2 , using complex of methyl orange (MO)/FeCl 3 as a reactive self-degraded soft-template. The morphology and structure of the composite were characterized by infrared spectroscopy (IR) X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show that the MnO 2 /PPy composite consists of ␣-MnO 2 and PPy with nanotube-like structure. Electrochemical properties of the composite demonstrated the material showed good electrochemical reversibility after 500 charge-discharge cycles in the potential range of -0.4 to 0.6 V, the tube-like nanocomposite has the potential application in electrochemical capacitor.