PANI/MWNTs复合材料的合成及电容性能

Synthesis and capacitive study of PANI/MWNTs composite material

以苯胺(PANI)和多壁碳管(MWNTs)为原料,采用原位聚合法合成聚苯胺,使聚苯胺均匀包覆在碳管表面,得到PANI/MWNTs复合材料.在1mol/L H2SO4电解液中,以甘汞电极为参比电极,通过循环伏安、恒流充放电测试其电化学特性.结果表明,当电流密度在1A/g时,复合材料的比电容达到241.6F/g,远大于纯碳管的11.2F/g.

The PANI/MWNTs composite material was synthesized by in-situ polymerization method using aniline and multiwall nanotubes （MWNTs） as raw materials. Polyaniline （PANI） was uniformly coated on the surface of the MWNTs. The electrochemical performances of the composite were tested by cyclic voltammetry and charge--discharge in lmol/L HzSO4 solution u- sing calomel as reference electrode. The results show that at the current density of 1A/g, the ca- pacitance of the composite is up to 241.6F/g which is much higher than that of pure MWNTs val- ue of Ii. 2F/g.