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Open Access Nano Express

Controllable synthesis of MnO2/polyaniline nanocomposite and its electrochemical capacitive property

Fanhui Meng12, Xiuling Yan13, Ye Zhu2 and Pengchao Si1*

Author Affiliations

1 Key Laboratory for Liquid–solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, People's Republic of China

2 School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, People's Republic of China

3 School of Chemistry and Bioscience, Ili Normal University, Xinjiang 835000, People's Republic of China

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Nanoscale Research Letters 2013, 8:179  doi:10.1186/1556-276X-8-179

Published: 17 April 2013

Abstract

Polyaniline (PANI) and MnO2/PANI composites are simply fabricated by one-step interfacial polymerization. The morphologies and components of MnO2/PANI composites are modulated by changing the pH of the solution. Formation procedure and capacitive property of the products are investigated by XRD, FTIR, TEM, and electrochemical techniques. We demonstrate that MnO2 as an intermedia material plays a key role in the formation of sample structures. The MnO2/PANI composites exhibit good cycling stability as well as a high capacitance close to 207 F g−1. Samples fabricated with the facile one-step method are also expected to be adopted in other field such as catalysis, lithium ion battery, and biosensor.

Keywords:
Interfacial synthesis; Polyaniline; MnO2; Composite; Electrochemical capacitor