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石墨烯/聚苯胺复合材料的制备及其电化学性能
引用本文:王宏智,高翠侠,张鹏,姚素薇,张卫国.石墨烯/聚苯胺复合材料的制备及其电化学性能[J].物理化学学报,2013,29(1):117-122.
作者姓名:王宏智  高翠侠  张鹏  姚素薇  张卫国
作者单位:Shan Shan Research Office of Surface Technology, College of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
基金项目:天津市自然科学基金(11JCYBJC01900)资助项目~~
摘    要:以苯胺和氧化石墨烯(GO)为原料, 采用电化学方法制备了石墨烯/聚苯胺(GP)复合材料. 利用X射线衍射(XRD)、扫描电镜(SEM)、拉曼(Raman)光谱、X射线光电子能谱分析(XPS)对其结构、微观形貌进行了表征,并对复合材料电化学性能进行了测试. 结果表明, 复合材料保持了石墨烯的基本形貌, 聚苯胺颗粒均匀地分散在石墨烯表面, 复合材料在500 mA·g-1的电流密度下比电容达到352 F·g-1, 1000 mA·g-1下比电容为315 F·g-1, 经过1000 次的充放电循环后容量保持率达到90%, 远大于石墨烯和聚苯胺单体的比电容. 复合材料放电效率高, 电解质离子易于在电极中扩散和迁移.

关 键 词:石墨烯  聚苯胺  复合  电化学制备  性能  
收稿时间:2012-08-24
修稿时间:2012-10-24

Synthesis and Electrochemical Performance of Graphene/Polyaniline
WANG Hong-Zhi GAO Cui-Xia ZHANG Peng,YAO Su-Wei ZHANG Wei-Guo.Synthesis and Electrochemical Performance of Graphene/Polyaniline[J].Acta Physico-Chimica Sinica,2013,29(1):117-122.
Authors:WANG Hong-Zhi GAO Cui-Xia ZHANG Peng  YAO Su-Wei ZHANG Wei-Guo
Institution:Shan Shan Research Office of Surface Technology, College of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China
Abstract:Graphene/polyaniline composites (GP) were prepared from aniline and graphite oxide using an electrochemical method. The structure characterization and surface morphology were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS), and its electrochemical properties were measured. The results show that the composite keeps the basic morphology of graphene and that the polyaniline particles are uniformly dispersed. The specific capacitances of the composite materials reach 352 and 315 F·g-1 at 500 and 1000 mA·g-1, respectively, higher than those of graphene and polyaniline. The majority (90%) of the capacitance remains after 1000 cycles of charge and recharge at 1000 mA·g-1. The composite shows potential for use in supercapacitors.
Keywords:Graphene  Polyaniline  Composite  Electrochemical preparation  Property
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