Characteristics of polypyrrole chemically synthesized by various oxidizing reagents |
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Authors: | K. Nishio M. Fujimoto O. Ando H. Ono T. Murayama |
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Affiliation: | (1) New Materials Research Center, Sanyo Electric Co. Ltd, 573 1-18-13, Hashiridani, Hirakata, Osaka, Japan;(2) Yokohama Research Center, Mitsubishi Chemical Corporation, 227 1000 Kamoshidacho, Aobaku, Yokohama, Japan |
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Abstract: | Polypyrrole was chemically synthesized using various oxidizing reagents and examined as a positive electrode material. Physical properties, morphologies and electrochemical characteristics of polypyrrole were greatly influenced by the oxidizing reagent used for polymerization. In general, polypyrrole with a smaller particle size and a larger specific surface area showed better discharge performance than that with a larger particle size and a smaller specific surface area. Polypyrrole was also synthesized on various conducting and nonconducting substrates using Fe(C104)3 as an oxidizing reagent. By using PP nonwoven fabric as a substrate material, a high discharge capacity of 72 mA h g–1 was obtained. Polypyrrole synthesized on only one side of PP nonwoven fabric was able to be used as an electrode. |
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