物理化学学报Issue(2)：474-480,7.DOI:10.3866/PKU.WHXB201511104
不同磺酸掺杂聚苯胺的制备及在超级电容器中的应用
Preparation and Application of Polyaniline Doped with Different Sulfonic Acids for Supercapacitor
摘要
Abstract
Polyaniline (PANI) nanomaterials doped with three different sulfonic acid surfactants (perfluorinated sulfonic acid ion exchange resin (Nafion), sodium dodecyl sulfate (SDS), and sodium dodecyl benzene sulfonate (SDBS)) were prepared using an emulsion polymerization method with manganese dioxide (MnO2) as the oxidant. The structure and morphology of the products were studied by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD). Symmetric redox supercapacitor was assembled with doped PANI as the active electrode material. The electrochemical performances of the materials were evaluated by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge tests. These results suggest that the introduction of surfactant is beneficial for the formation of a fiber structure and increases the dispersion of PANI. A PANI-Nafion network with distributed porosity and average diameters of 30-40 nm is obtained. The specific capacitances of PANI-Nafion, PANI-SDS, and PANI-SDBS electrodes at 0.1 A∙g-1 are 385.3, 359.7, and 401.6 F∙g-1, respectively. Among these electrodes PANI-Nafion delivers the best cycle performance, maintaining 70.7%of its initial capacitance after 1000 cycles.关键词
聚苯胺/有机磺酸/乳液聚合/纳米纤维/超级电容器Key words
Polyaniline/Organic sulfonic acid/Emulsion polymerization/Nanofiber/Supercapacitor分类
化学化工引用本文复制引用
林有铖,钟新仙,黄寒星,王红强,冯崎鹏,李庆余..不同磺酸掺杂聚苯胺的制备及在超级电容器中的应用[J].物理化学学报,2016,(2):474-480,7.基金项目
The project was supported by the China Postdoctoral Science Foundation (2014M562499XB) and National Natural Science Foundation of China (U1401246,51474110).中国博士后科学基金(2014M562499XB)及国家自然科学基金(U1401246,51474110)资助项目 （2014M562499XB）
