种子模板法制备镍盐掺杂聚吡咯纳米纤维及其电化学电容性质  

Preparation and Electrochemical Capacitance of Polypyrrole Nanofibers Doped with Ni Salt by Seed Template Method

作　　者：米红宇[1] 张校刚[2] 吕新美[1] 王兴磊[1] 罗建明[1] 黄建书[1] 

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

出　　处：《高分子材料科学与工程》2008年第3期155-158,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20403014);中科院西部之光资助项目

摘　　要：在镍盐存在下,以氯化铁和甲基橙溶液形成的化合物为种子模板,制备了镍盐掺杂的聚吡咯纳米纤维(Ni-PPy)。用扫描电镜(SEM)对种子模板、聚吡咯及镍盐掺杂聚吡咯的形貌进行了表征。用循环伏安法、电化学阻抗谱和恒流充放电技术测试聚合物的电化学性能。结果表明,以镍盐掺杂聚吡咯为活性物质制成的电极材料在1 mol/L KCl溶液中的比容量高达474 F/g。Polypyrrole nanofibers doped with Ni salt （Ni-PPy） were synthesized by using the fibrillar complex as a seed template in the presence of Ni salt. Morphologies of the seed template, PPy and Ni-PPy were characterized by SEM. The supercapacitor was assembled with Ni-PPy as active electrode materials and 1 mol/L KCI aqueous solution as electrolyte. The electrochemical performances of the supercapacitor were investigated by cyclic voltammetry, electrochemical impedance speetroseopy and galvanostatic charge-discharge. At a current density of 2 mA/cm^2, the Ni-PPy exhibits high specific capadtance of 474 F/g.

关 键 词：种子模板 聚吡咯纳米纤维 电容性能 

分 类 号：TB383[一般工业技术—材料科学与工程]