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电化学  2012 

聚吡咯/氧化石墨烯层状复合材料的制备及其在超级电容器中的应用(英文)

, PP. 348-358

Keywords: 氧化石墨烯,化学还原石墨烯,聚吡咯,复合物,超级电容

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Abstract:

论文通过将吡咯单体在低温下与氧化石墨烯进行原位聚合,获得聚吡咯/石墨烯(Ppy/CRGO)复合材料.采用场发射电子显微镜(FESEM)、红外(FT-IR)和热重(TGA)对复合物的表面形貌、结构进行表征.FESEM结果表明,通过控制氧化石墨烯(GO)和吡咯单体的质量比例,可以对复合物的层状和厚度进行调控.FT-IR和TGA结果表明聚吡咯(Ppy)是通过化学键合的方式与氧化石墨烯复合在一起。通过机械冷压法将粉末状Ppy/CRGO复合物压成圆片电极,并探讨了石墨烯和聚吡咯复合比例、反应时间、烘干温度、孔隙率等因素对Ppy/CRGO复合物电极的电学和电化学性能的影响.结果表明,Ppy与CRGO质量比为10:1所制得的Ppy/CRGO复合物的电容量为421F?g-1,通过在电极中引入孔隙,电容量能进一步提升为509F?g-1.

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