以氧化石墨为基质制备石墨烯/聚苯胺复合材料及其电化学性能  

Preparation and electrochemical property of graphene/polyaniline composite based on graphite oxide

作　　者：姚军[1] 孙丽美[1] 高飞[1] 

机构地区：[1]内蒙古民族大学化学化工学院,通辽028000

出　　处：《化工新型材料》2017年第1期47-49,52,共4页New Chemical Materials

基　　金：国家自然科学基金资助项目(21003070;21463017);内蒙古民族大学校级项目(NMDYB1456)

摘　　要：利用以苯胺与过硫酸铵制备的聚苯胺和改进的Hummers法制备的氧化石墨烯(GO)为原料,将聚苯胺分散于GO浊液中,再对GO进行还原,制备超级电容器电极材料石墨烯(RGO)/聚苯胺(PANI)复合材料(GRP),利用X射线衍射(XRD)对其结构进行了表征,并对复合材料电化学性能进行了测试。结果表明,复合材料展示良好比电容特性,同时又具有稳定电化学性能。GRP在0.1A/g的电流密度下比电容达到510F/g,1.0A/g电流密度下比电容为485F/g,经过2000次的充放电循环后比电容保持率为92%,即复合物比电容远大于石墨烯,在化学稳定性上远好于PANI。放电响应效率高,在电极中电解质离子容易扩散和迁移。Polyaniline which prepared by using aniline and ammonium persulfate,and graphite oxide which prepared by modified Hummers were as the raw materials,which were reduced to synthesis electrode material graphene/polyaniline composites（GRP）of supercapacitor.The structure was characterized by XRD,and electrochemical properties were tested.The results showed that the composite material exhibited good capacitance characteristic.The current density at 0.1A/g and 1.0A/g,the specific capacitances of composite were 510F/g and 485F/g,respectively.After 2000charge/discharge cycles,the capacitance retention of supercapacitor remained 92%.It demonstrated that the composites＇ specific capacitance was far greater than that of graphene,chemical stability was much better than polyaniline,high charge/discharge efficiency,and the electrolyte ions were easy to diffuse and migrate in the electrode.

关 键 词：聚苯胺 石墨烯 比电容 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]