肝素钠掺杂球状聚吡咯的合成及其电化学电容  

Preparation and Electrochemical Capacitance of Spherical-Like Polypyrrole Doped with Heparin Sodium

作　　者：米红宇[1] 张校刚[2] 杨苏东[1] 叶向果[1] 

机构地区：[1]新疆大学应用化学研究所 [2]南京航空航天大学材料科学与技术学院,江苏南京210016

出　　处：《电化学》2008年第2期166-169,共4页Journal of Electrochemistry

基　　金：国家自然科学基金(20403014);江苏省自然科学基金(BK2006196)资助

摘　　要：以生物制剂肝素钠为掺杂剂,由自组装方法合成出平均粒径为100 nm的球状聚吡咯(PPy),用作超级电容器电极材料.透射电镜(TEM)、循环伏安、恒流充放电和电化学交流阻抗测试表明,肝素钠掺杂聚吡咯呈现较好的形貌和电容性质,在电流密度3 mA/cm2下充放电,单电极比电容达到338 F/g.Spherical-like polypyrrole with an average diameter of 100 nm as the electrode material for supercapacitor was prepared by a self-assembly process with heparin sodium salt as the dopant at - 10 ℃. The morphology and electrochemical properties were characterized by transmission electron microscopy （TEM）, cyclic vohammetry （CV）, galvanostatic charge/discharge and electrochemical impedance spectroscopy （EIS） measurements. The results showed that the polypyrrole doped with heparin sodium salt exhibited good capacitive behavior. The specific capacitance of single electrode was up to 338 F/g at 3 mA/cm^2.

关 键 词：肝素钠 球状聚吡咯 电化学电容器 

分 类 号：O633.5[理学—高分子化学] TM53[理学—化学]