摘要
为扩展石墨烯的宏观应用,制备性能优异的三维聚苯乙烯/聚苯胺/石墨烯(PS/PANI/graphene)复合微粒具有重要意义.以聚苯乙烯微粒为模板,通过2种浓度苯胺单体的原位生长得到2种聚苯乙烯/聚苯胺复合微粒,再利用氧化石墨烯与苯乙烯/聚苯胺微粒间的静电、共轭相互作用制备三维PS/PANI/graphene复合微粒.利用红外光谱(FTIR)、扫描电镜(SEM)、X射线衍射(XRD)、热重分析(TG)对其微观形貌、结构进行表征,利用电化学测试对三维复合微粒电化学性能进行测试.结果表明,复合材料保持了聚合物微粒的基本形貌,具有三维结构,并有优异的比电容(578 F/g)和循环稳定性(循环900次,容量保持81.5%),其电性能远优于单纯石墨烯和聚苯胺.
In order to expand the macro application of graphene, the synthesis of 3D PS/PANI/graphene composite particles with excellent properties is significant. First, different PS/PANI were synthesized by in-situ growth of two kinds of aniline monomers. Then, 3D PS/PANI/graphene was synthesized by the electrostatic and conjugate effects between grapheme and PS/PANI. The surface morphology and structure were investigated using FFIR, SEM, XRD and TG. The electrochemical properties were measured by electrochemical measurements. The results indicate that the composite exhibits the basic morphology of polymer microsphere, excellent specific capacitance （578 F/g） and cycle stability （after 900 cycles, 81.5 % initial capacitance were kept）. Moreover, its supercapacitive performance is much better than that of pure RGO and PANI.
出处
《材料科学与工艺》
EI
CAS
CSCD
北大核心
2015年第6期29-33,共5页
Materials Science and Technology
基金
国家自然科学基金(21401001)
中国博士后基金(2015M571913)
关键词
三维
复合材料
性能
石墨烯
制备
3D
composite
performance
graphene
fabricate
