二氧化锰为氧化剂制备多孔石墨烯@聚苯胺超级电容器材料的研究

Preparation of porous graphene@ PANI supercapacitor materials by MnO_2

以聚苯乙烯微球为模板制备蜂窝状多孔石墨烯为载体,分别以过硫酸铵和β-MnO_2为氧化剂,采用化学原位聚合的方法制备合成多孔石墨烯/聚苯胺超级电容器材料。并利用X射线衍射(XRD)、比表面积分析仪(BET),扫描电子显微镜(SEM)、傅里叶红外光谱仪(FT-IR)和电化学工作站等对其微观形态、结构组成和电化学性质进行检测分析。结果表明:制备的载体材料具有蜂窝状结构,且以β-MnO_2为氧化剂的电容器材料具有良好的电化学性能。

Firstly,porous honeycomb graphene is prepared by using polystyrene microspheres as template.Then the porous graphene/PANI supercapacitor materials are synthesized by in-situ polymerization in the dispersion system of porous honeycomb graphene and using ammonium persulfate and β-MnO_2 respectively as oxidant.The micromorphologym structure,composition and electrochemical performance of the materials are characterized by X-ray diffraction spectroscopy（ XRD）,Brunauer-Emmett-Teller（ BET）,scanning electron microscopy（ SEM）,Fourier transform infrared spectroscopy（ FT-IR） and electrochemical workstation. The results show that the prepared carrier material has a honeycomb structure and the porous graphene/PANI materials using β-MnO_2 as oxidant have better electrochemical properties.