过渡金属离子掺杂聚苯胺的合成及其储能机制的研究  

Synthesis and energy-storage mechanism of polyaniline doped with transition metal ion

作　　者：谭子仪 叶蕾蕾[1] 周雪[1] 李宝铭[1] 

机构地区：[1]福州大学材料科学与工程学院,福州350108

出　　处：《化工新型材料》2017年第6期110-112,共3页New Chemical Materials

基　　金：国家自然科学基金项目(61205182);国家大学生创新创业训练计划项目(201410386032)

摘　　要：采用化学氧化法制备了H^+分别与Co^(2+)、Fe^(3+)和Zn^(2+)共掺杂聚苯胺(PANI),即PHCo、PHFe和PHZn。结果表明:过渡金属离子可以促进PANI生成须状"触角"并伴有疏松的空隙结构。在0.2A/g下,PHCo、PHFe和PHZn的比电容分别可以达到354、355和333F/g,经1000次循环后,仍分别保留81.9%、83.5%和78.9%的初始比电容。3种过渡金属离子均可有效促进PANI体相发生苯式-醌式结构的交替转变,利用体相转变产生的氧化还原反应储存能量,其中,Co^(2+)的促进作用最显著。H^＋,Co^2＋codoped polyaniline,H^＋,Fe^3＋codoped polyaniline and H^＋,Zn^2＋codoped polyaniline,marked as PHCo,PHFe and PHZn were successfully synthesized via chemical oxidative polymerization.The results showed that the transition metal ions could promote polyaniline to generate antennae with porous structure.PHCo,PHFe and PHZn had improved specific capacitance of 354,355 and 333F/g compared with H＋doped polyaniline of 327F/g at a constant current density of 0.2A/g,and presented good durability of 81.9%,83.5%and 78.9% specific capacitance retention after 1000 cycles.Three kinds of transition metal ions could effectively promote the benzene-quinone structural transformation of polyaniline,and the energy was stored by using a redox reaction during the course of structural transformation.Among them,the promotion effect of Co^2＋ion was the most significant.

关 键 词：聚苯胺 过渡金属离子 电化学性能 储能机制 

分 类 号：O633.21[理学—高分子化学]