聚苯胺
超级电容器
材料科学
电化学
电容
聚合
化学工程
导电聚合物
纳米技术
聚合物
苯胺
共轭体系
电极
化学
复合材料
有机化学
物理化学
工程类
作者
Chenglong Hu,Shaoyun Chen,Yuan Wang,Xianghong Peng,Weihong Zhang,Jian Chen
标识
DOI:10.1016/j.jpowsour.2016.04.113
摘要
In this article, we explore a novel route to fabricate cabbage-like polyaniline (PANI) by in situ polymerization of aniline using the hydroxylated poly (methyl methacrylate) nanospheres (i.e. PMMAOHNS) as a template. A maximum specific capacitance of 584 F/g (the current density is 0.1 A/g) is achieved at 10 mV s−1 as well as a high stability of over 3000 cycles (the decrease in the SC is ∼9.1%), which suggests the potential application of the cabbage-like polyaniline in supercapacitors. The predominant electrochemical performances of the cabbage-like polyaniline can be attributed to their large surface area and larger-scale π−π conjugated system present in the quinoid structure of the PANI molecular chain, which can drastically facilitate electron diffusion and improve the utilization of the electroactive PANI during the charge/discharge processes. Accordingly, the facility of charge transfer can decrease resistance along with the PANI molecular chain to improve the electrochemical stability and achieve high-capacitance response characteristics. The present study introduces a new synthesis method for the development of various morphology of other conducting polymer, which may find potential applications in a variety of high-performance electrochemical devices.
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