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聚苯胺纳米线插层石墨烯复合材料的制备以及电化学性能

发表时间:2015-12-15  浏览量:1508  下载量:864
全部作者: 于平平,赵昕,张清华
作者单位: 东华大学材料科学与工程学院,纤维改性国家重点实验室
摘 要: 通过原位聚合法以苯胺和微波膨胀氧化石墨(graphite oxide,GO)的石墨烯(microwave assisted graphene,MEGO)为原料,按照质量比为98:2及90:10制备了聚苯胺(polyaniline,PANI)插层石墨烯的复合材料(polyaniline/microwave assisted graphene,PANI/MEGO),分别记为PANI/MEGO=2%和PANI/MEGO=10%。采用场发射扫描电镜(field emission scanning electron microscope,FESEM)和X射线衍射(X-ray diffraction,XRD)分析复合材料的形貌结构,证明PANI/MEGO=10%插层成功,其中苯胺阳离子先进入多层石墨烯层间,加入引发剂后聚合得到复合材料促使石墨烯剥离。作为超级电容器电极材料,PANI/MEGO=10%比PANI/MEGO=2%具有更高的比电容(660 F·g-1)和更小的电阻。PANI/MEGO复合材料表现出良好的电化学性能,从而能够应用于超级电容器器件。
关 键 词: 有机高分子材料;超级电容器;聚苯胺;石墨烯
Title: Fabrication and electrochemical properties of polyaniline nanowires intercalated graphene composites
Author: YU Pingping, ZHAO Xin, ZHANG Qinghua
Organization: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University
Abstract: Polyaniline/microwave assisted graphene (PANI/MEGO) composites were synthesized by in situ polymerization, and the mass ratios of PANI:MEGO were 98:2 (PANI/MEGO=2%) and 90:10 (PANI/MEGO=10%). The structural and morphological characterizations were performed by field emission scanning electron microscope (FESEM) and X-ray diffraction (XRD) analysis. The results show that aniline cation was formed in the acid solution and intercalated into the interlayer of multilayer graphene, and then in situ polymerization of PANI enhances the distance between the graphene sheets. PANI/MEGO=10% shows a higher specific capacitance (660 F·g-1) and smaller charge transfer resistance than PANI/MEGO=2% as a supercapacitor electrode. The attractive charcateristics showed in these composites make them potential candidates for supercapacitors.
Key words: organic macromolecule materials; supercapacitors; polyaniline; graphene
发表期数: 2015年12月第23期
引用格式: 于平平,赵昕,张清华. 聚苯胺纳米线插层石墨烯复合材料的制备以及电化学性能[J]. 中国科技论文在线精品论文,2015,8(23):2460-2465.
 
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