氧化石墨烯/聚苯胺纳米线复合材料的制备及电化学电容性能研究  

Synthesis and Electrochemical Capacitive Performance of Graphene Oxide/Polyaniline Nanowire Composite

作　　者：陈玉华[1] 戴亚堂[1] 王伟[1] 张欢[1] 申振[1] 马丽[1] 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010

出　　处：《武汉理工大学学报》2013年第9期25-29,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金-青年科学基金(51107106);西南科技大学研究生创新基金(13ycjj06)

摘　　要：采用化学法在氧化石墨烯(GO)表面垂直生长出聚苯胺(PANI)纳米线阵列。利用SEM、FT-IR、Raman对所制备的GO/PANI复合材料的形貌及结构进行表征。该复合材料的电化学电容性能通过循环伏安(CV)、交流阻抗(EIS)和恒流充放电进行表征。研究结果表明:在0.2A/g的电流密度下,GO/PANI电极首次充放电比电容可高达469F/g,高于纯PANI电极的452F/g,复合材料的电荷传递电阻为1Ω·cm2。同时,GO/PANI的循环稳定性及倍率特性得到极大的增强。We introduced a facile chemical polymerization method to construct nanocomposites by combining conduc-ting polyaniline （PANI） nanowires arrays with graphene oxide （GO） nanosheets. The surface morphology and structure of nanocomposites are characterized by SEM, FT-IR, Raman measurements. Electrochemical properties were character-ized by cyclic voltammetry（CV）, electrochemical impedance spectroscopy （EIS） and gaivanostatic charge/discharge. The results indicated that the average specific capacitance of nanocomposites could be as high as 469 F/g in the potential range from 0 to 0. 7V at a current density of 0. 2 A/g, higher than pure PANI electrode （452 F/g）, showing a synergistic of PANI and GO. The charge transfer resistance （Rct） of GO/PANI was 1 Ω· cm^2. They also exhibited greatly to improve electrochemical stability and rate performances.

关 键 词：氧化石墨烯 氧化石墨烯 聚苯胺 纳米线阵列 比电容 超级电容器 

分 类 号：O646[理学—物理化学] TQ152[理学—化学]