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中文摘要：
利用水热法合成了一维的MnO2纳米棒,经十六烷基三甲基溴化铵（CTAB）表面改性后与苯胺单体在低温下混和,通过原位化学氧化聚合法制备了聚苯胺-二氧化锰（PANI-MnO2）纳米复合材料。采用FESEM、FT-IR、XRD、TG、循环伏安以及恒电流充放电等测试技术对复合材料进行了结构和性能的分析。结果表明：MnO2纳米棒穿插在聚苯胺纳米线网络中,通过两者之间的相互作用形成了新的网络结构,随着MnO2含量的增加,复合材料比容量呈现先增大后减小的趋势,当m（An）∶m（MnO2）=1∶3、电流密度为1 mA/cm2时,复合电极材料的比容量最大为104F/g,聚苯胺的引入明显改善了MnO2电极材料的电化学性能。
英文摘要：
Polyaniline-manganese dioxide nanocomposites（PANI-MnO2） were prepared by a chemical oxidative polymerization.MnO2 nanorods were synthesized by a hydrothermal reaction and then modified with cetyltrimethylammonium bromide（CTAB）before the polymerization.PANI-MnO2 nanocomposites were characterized by field emission scanning electron microscopy（FESEM）,Fourier transform infrared（FT-IR） spectra,X-ray diffraction（XRD）,thermogravimetric（TG） analysis,cyclic voltammetry（CV） and galvanostatic charge-discharge.Results show that MnO2 nanorods and polyaniline nanowires interpenetrate to form network structures.The specific capacitance of composite electrode varies with the amount of MnO2 and the maximum is 104 F/g when the mass ratio of An to MnO2 is 1∶3 at a current density of 1 mA/cm2.The electrochemical performance of MnO2 electrode is significantly improved by the introduction of polyaniline.
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