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以磁性离子液体1-丁基-3-甲基咪唑四氯化铁盐([bmim]FeCl4)为介质,将多壁碳纳米管(MWCNTs)机械球磨分散在其中形成[bmim]FeCl4/MWCNTs凝胶后,加入乙撑二氧噻吩(EDOT)单体,利用阴离子FeCl-4的氧化性进行原位聚合,球磨法制备了均匀包覆不同含量MWCNTs的聚乙撑二氧噻吩/多壁碳纳米管(PEDOT/MWCNTs)纳米复合材料.并以傅里叶红外光谱(FT-IR)、扫描电镜(SEM)和透射电镜(TEM)对PEDOT/MWCNTs的结构与形貌进行了表征;在0.5 mol/L硫酸溶液中,用循环伏安测试(CV)研究了PEDOT/MWCNTs的电化学行为;采用四探针仪测定了PEDOT/MWCNTs的电导率;热重分析(TGA)研究了PEDOT/MWCNTs的热稳定性.结果表明,PEDOT纳米颗粒均匀包覆于MWCNTs表面,形成了核壳结构;PEDOT与MWCNTs之间的共轭作用随着MWCNTs含量的增加而增强.MWCNTs的质量分数为30%的PEDOT/MWCNTs的电导率出现峰值,达到7.46 S/cm,且电化学活性最好.MWCNTs的质量分数为10%时,PEDOT/MWCNTs的热稳定性相对于PEDOT显著提高.
Multiwalled carbon nanotubes (MWCNTs) were mechanically ball-milled in a solution of [bmim] FeCl4 / MWCNTs with magnetic ionic liquid 1-butyl-3-methylimidazolium chloride ([bmim] FeCl4) After ethylene glycol dioxythiophene (EDOT) monomer was added into the adhesive, the in situ polymerization was performed by the oxidation of anionic FeCl-4. Polyethylenedioxythiophene / multi-walled carbon nano-particles The structure and morphology of PEDOT / MWCNTs were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) / L sulfuric acid solution, the electrochemical behavior of PEDOT / MWCNTs was investigated by cyclic voltammetry (CV); the conductivity of PEDOT / MWCNTs was measured by a four-probe apparatus; the thermal conductivity of PEDOT / MWCNTs was measured by TGA; Thermal stability.The results showed that the PEDOT nanoparticles uniformly coated on the surface of MWCNTs and formed a core-shell structure.The conjugation between PEDOT and MWCNTs increased with the increase of MWCNTs content.The mass fraction of MWCNTs was 30% PEDOT / MWCNTs showed a peak value of 7.46 S / cm, and the electrochemical activity was the best.When the mass fraction of MWCNTs was 10%, PE Thermal stability of DOT / MWCNTs is significantly increased relative to PEDOT.