CAJ | 학술논문

利用原位化学氧化聚合的方法制备了聚苯胺/氧化石墨烯(PANI/GO)复合材料.通过 X 射线衍射(XRD)、扫描电镜(SEM)及红外光谱(IR)等方法对其结构和形貌进行了表征.利用自制的 PANI/GO复合材料作为电极材料分别组装了超级电容器及锂离子电池,并对其电化学性能进行了测试.结果表明, GO在不同的电化学器件中均能够明显改善 PANI 的电化学性能.以 PANI/GO 作为超级电容器电极材料,放电时其比电容达413．28 F/g,高于纯 PANI 的322．56 F/g,1000次循环后,容量保持率为70％.以PANI/GO 作为锂离子电池正极材料,0．1 C 下首次放电比容量达104．4 mAh/g,50次循环后,容量未见衰减.
이용원위화학양화취합적방법제비료취분알/양화석묵희(PANI/GO)복합재료.통과 X 사선연사(XRD)、소묘전경(SEM)급홍외광보(IR)등방법대기결구화형모진행료표정.이용자제적 PANI/GO복합재료작위전겁재료분별조장료초급전용기급리리자전지,병대기전화학성능진행료측시.결과표명, GO재불동적전화학기건중균능구명현개선 PANI 적전화학성능.이 PANI/GO 작위초급전용기전겁재료,방전시기비전용체413．28 F/g,고우순 PANI 적322．56 F/g,1000차순배후,용량보지솔위70％.이PANI/GO 작위리리자전지정겁재료,0．1 C 하수차방전비용량체104．4 mAh/g,50차순배후,용량미견쇠감.
Polyaniline/Graphene oxide (PANI/GO)composite was synthesized via in situ polymerization in the presence of graphene oxide under acidic conditions.The PANI/GO was characterized using X-ray diffraction (XRD),FT-IR,scanning electron microscope (SEM).The electrochemical tests showed that GO could enhance the electrochemical performance of the PANI electrode material.In electrochemical supercapacitors,PANI/GO electrode showed a higher capacity of 413.28 F/g compared with 322.56 F/g of PANI electrode.After 1 000 cy-cles,the capacity of PANI/GO electrode still maintained 70% of the original capacity.The cathodes prepared u-sing PANI and PANI/GO delivered initial discharge capacities of 78 mAh/g and 104.4 mAh/g,respectively and stable reversible capacities of 50 mAh/g and 103.7 mAh/g after 50 charge-discharge cycles,respectively.PANI/GO is a good candidate as electrode material in lithium ion batteries and electrochemical supercapacitors.