A10 超音波を用いた導電性高分子/カーボンファイバーナノ複合体の構造制御型合成と電気化学キャパシタへの応用

概要

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Recently, electroconductive polymer/carbon composites have been received much attention since they are promising materials for electrochemical capacitor with high capacitance. The capacitance of the composites depends greatly on their structures, and therefore the synthesis of composites having highly-regulated structure is important subject in this research field. Meanwhile, it is well known that ultrasound provides the extreme conditions, such as high temperature (over 5000 K), high pressure (over 2000 atm) and high-speed mass transfer, by the collapse of the cavities within a liquid. It can be expected that these extreme conditions introduce the novel synthesis of composites having highly-regulated structure. In this study, we prepared the polypyrrole (PPy)/vapor grown carbon fiber (VGCF) hybrid composites and investigated their structural and electrochemical properties. The nanocomposites were prepared by chemical deposition of PPy on VGCF with and without ultrasonication. As the result, the morphology of PPy film deposited on VGCF with ultrasonication was highly uniform. In addition, the electric capacity of the composite prepared with ultrasonication was higher than that without ultrasonication. Thus, the composites prepared with ultrasonication may be applied to high-performance electrochemical capacitor.
日本ソノケミストリー学会の論文
2005-10-14