摘要
利用两步原位聚合法制备聚苯胺/聚吡咯/氧化石墨烯(PANi/PPy/GO)复合材料,考察了苯胺/吡咯/GO原料比对复合材料结构、微观形貌及电化学性能的影响.结果表明,PPy和PANi分别以非晶态形式均匀地原位复合在GO和PPy/GO片的表面;PANi/PPy/GO复合材料主要是靠法拉第赝电容进行电荷存储,且比电容较大、电荷转移电阻较小、循环稳定性较高;当苯胺/吡咯/GO原料质量比为10:5:1时,所制备复合材料利用循环伏安法和恒电流充放电法计算的比电容分别达到最大值154.7和243.3 F·g^-1.PANi/PPy/GO复合材料可用于超级电容器的电极材料.
Polyaniline/polypyrrole/graphene oxide(PANi/PPy/GO)composites were prepared by two-step in situ polymerization.The effects of aniline/pyrrole/GO feed ratios on the structure,morphology and electrochemical performance of the composites were investigated.The results indicate that the surface of GO and PPy/GO is uniformly coated with amorphous PPy and PANi,respectively.The charge storage of PANi/PPy/GO composites mainly relies on Faraday pseudocapacitance,and the composites exhibit larger capacitance,smaller charge transfer resistance and higher cyclic stability.Especially,the composites with the ratio of 10∶5∶1(aniline/pyrrole/GO)exhibit the maximum capacitance values of 154.7 F·g^-1 and 243.3 F·g^-1,which are calculated by cyclic voltammetry and galvanostatic charge-discharge,respectively.The PANi/PPy/GO composites can be used as the electrode materials for supercapacitors.
作者
王攀
冯玥
孙鸣
WANG Pan;FENG Yue;SUN Ming(School of Materials and Chemical Engineering,Chuzhou University,Chuzhou 239000,Anhui Province,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2019年第8期13-19,共7页
Electronic Components And Materials
基金
安徽省高校优秀青年人才支持计划项目(gxyq2019095)
滁州学院大学生创新创业训练计划项目(2018CXXL054)
安徽省示范实验实训中心项目(2017sxzx33)
关键词
聚苯胺
聚吡咯
氧化石墨烯
复合材料
电化学性能
超级电容器
polyaniline
polypyrrole
graphene oxide
composite
electrochemical performance
supercapacitor
