Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance
Aniline‐grafting graphene oxide/polyaniline composite prepared via interfacial polymerization with high capacitive performance
复制标题
界面聚合制备苯胺接枝氧化石墨烯/聚苯胺复合材料，具有高电容性能
DOI：
10.1002/er.4756
复制
发表时间：
2019
影响因子：
4.6
通讯作者：
Fengxing Jiang
中科院分区：
文献类型：
--
作者：
Zhaofen Xu;Tongzhou Wang;Liangying Wang;Jingkun Xu;Peipei Liu;Xiaoqi Lan;Xuejing Li;Meng Ni;Qinglin Jiang;Fengxing Jiang
聚苯胺(PANI)是一种低成本的导电聚合物，具有优异的比电容和高电导率，是一种很有前途的超级电容器有机材料。然而，在恒定充放电后，它往往会卷曲和膨胀，导致循环稳定性较差。在本工作中，我们采用界面聚合的方法构建了苯胺接枝氧化石墨烯/聚苯胺(GO-ANI/PANI)复合材料。制备的GO-ANI/PANI复合材料在160.5~1.0V的宽电位范围内，在0.5Ag-1下表现出很高的比电容(10Ag-1)。在高电流密度下(10Ag-1)，由于GO与PANI之间的相互作用增强，且导电网络良好，3000次循环后的比容仍保持86%。结果表明，与常规方法制备的GO/PANI相比，GO-ANI/PANI复合材料具有更高的比电容和更好的稳定性。本研究表明，复合电极有望成为高性能超级电容器的有力竞争者。
Polyaniline (PANI), a low‐cost conducting polymer with an excellent specific capacitance and a high conductivity, is a promising organic material served for supercapacitor. However, it tends to curl and swell after constant charge and discharge, resulting in poor cycle stability. In this work, we employed the interfacial polymerization route to construct an aniline‐grafting graphene oxide/PANI (GO‐ANI/PANI) composite. The as‐prepared GO‐ANI/PANI composite shows a high specific capacitance (160.5 F g‐1) at 0.5 A g‐1under the wide potential range from 0.0 to 1.0 V. Importantly, at a high current density (10 A g‐1), the capacitance retains 86% after 3000 cycles due to the enhanced interaction between GO and PANI and good conductive network. It has been demonstrated that the GO‐ANI/PANI composite has a higher specific capacitance and better stability compared with GO/PANI obtained by common method. This study implies that the composite electrode could be a competitive candidate for high‐performance supercapacitor.