乳液聚合法制备聚苯胺及其电容性能研究  

Research on capacitive performance of doped PANI prepared by emulsion polymerization

作　　者：张磊[1,2] 王红强[1] 钟新仙[1] 卢青容[1] 卢胜彬[1] 

机构地区：[1]广西师范大学化学化工学院,桂林541004 [2]广西师范大学资产管理处,桂林541004

出　　处：《化工新型材料》2013年第3期113-115,共3页New Chemical Materials

摘　　要：以过氧化氢(H2O2)为氧化剂,采用乳液聚合法,添加不同表面活性剂,在室温下制备得到聚苯胺(PANI)电极材料。采用扫描电子显微镜(SEM)、傅立叶变换红外光谱(FT-IR)及X-射线衍射(XRD)方法对其进行结构、形貌表征。用掺杂的PANI为活性物质制作电极,以lmol·L-1 H2SO4为电解液,组装成超级电容器。用恒电流充放电技术测试了其电化学性能。结果表明,添加表面活性剂十二烷基苯磺酸钠(SDBS)制备的PANI材料在电流密度为1mA·cm-2下的单电极比容量达497F·g-1,比掺杂十二烷基磺酸钠(SDS)的PANI材料具有更高的比容量。Polyaniline（PANI）was prepared by using hydrogen peroxide as the oxidant,adding different surfactant and using emulsion polymerization method at ambient temperature. The morphology and structure of polyaniline were characterized by scanning electron mieroscopy（SEM）, Fourier transform infrared spectroscopy（FTIR）and X-ray diffraction （XRD）. Symmetric redox supercapacitor was assembled with the PANI as active electrode material and 1mol · L^-1 H2 SO4 aqueous solution as electrolyte. The electrochemical properties of the supercapacitor were tested with galvanostatic chargedischarge. These results showed that the specific capacitance of the composite material of PANI/SDBS electrode was about 497F·g^-1 at the charge-discharge current density of 1mA ·cm^-2. It had higher capacity than the composite material of PANI/SDS electrode.

关 键 词：聚苯胺 表面活性剂 乳液聚合法 超级电容器 

分 类 号：TQ320.1[化学工程—合成树脂塑料工业]