CAJ | 학술논문

通过原位聚合在低温条件下(－10℃)制备具有片状微结构的聚吡咯(PPy)/氧化石墨烯(GO)复合材料,利用傅里叶红外光谱仪(FT-IR),扫描电子显微镜(SEM)对复合材料进行结构表征的基础上,利用循环伏安(CV)、恒流充放电(GC)、电化学阻抗技术(EIS)测试复合材料的电化学性能.FT-IR 结果表明复合材料中 GO 与 PPy 存在相互作用；SEM 结果表明复合材料显示为亚微米片状结构形貌；CV、GC、EIS 电化学分析表明,与纯聚吡咯及氧化石墨烯相比,复合材料显示出优越的电容特性.当电流密度保持在1 A/g时,复合材料的比电容可达319 F/g,比 GO(9 F/g)和PPy(167 F/g)的比电容都要高,该复合材料可用作潜在的超级电容器电极材料.
통과원위취합재저온조건하(－10℃)제비구유편상미결구적취필각(PPy)/양화석묵희(GO)복합재료,이용부리협홍외광보의(FT-IR),소묘전자현미경(SEM)대복합재료진행결구표정적기출상,이용순배복안(CV)、항류충방전(GC)、전화학조항기술(EIS)측시복합재료적전화학성능.FT-IR 결과표명복합재료중 GO 여 PPy 존재상호작용；SEM 결과표명복합재료현시위아미미편상결구형모；CV、GC、EIS 전화학분석표명,여순취필각급양화석묵희상비,복합재료현시출우월적전용특성.당전류밀도보지재1 A/g시,복합재료적비전용가체319 F/g,비 GO(9 F/g)화PPy(167 F/g)적비전용도요고,해복합재료가용작잠재적초급전용기전겁재료.
Micro-sheet polypyrrole (PPy)/ graphene oxide (GO)composites were prepared by in situ polymeri-zation at ultra-low temperature (-10 ℃).On the basis of the structural characterization of the composites by Fourier-transform infrared spectroscopy (FT-IR)and scanning electron microscopy (SEM)tests,the electro-chemical performances of the composites were investigated by cyclic voltammetry (CV),galvostatic charge-dis-charge (GC)and electrochemical impedance technology (EIS).The FT-IR analysis indicated the presence of in-teractions between GO and PPy in the composites.SEM results showed that the composites provided a submi-cron-sheet structure.The composites showed a better capacitive behavior than both GO and PPy.The compos-ites had a higher specific capacitance of 31 9 F/g (current density= 1 A/g)than either composite constituent (10 F/g for GO and 1 67 F/g for PPy).The composites could be used as potential electrode material for superca-pacitors.