纳米聚苯胺的微乳液法制备及电容性能研究  

The Capacitance Performance of Nano-polyaniline Prepared by Microemulsion Method

作　　者：葛洪仑[1] 姚文红[2] 贺本林[1] 刘威[1] 张勤杰[1] 孙苗[1] 王玮[1] 

机构地区：[1]中国海洋大学材料科学与工程研究院,山东青岛266100 [2]青岛农业大学化学与药学院,山东青岛266109

出　　处：《山东化工》2012年第5期4-7,共4页Shandong Chemical Industry

基　　金：国家自然科学资金(50642011);山东省自然科学资金(ZR2011BQ017);中央高校基本科研业务费青年教师科研专项基金项目(841013045)

摘　　要：用微乳液法制备了纳米聚苯胺,并将其与活性炭混合制备聚苯胺/活性炭电极。用透射电镜对聚苯胺的形貌进行了表征,用循环伏安法及恒流充放电法对所制电极的电化学性能进行了研究。结果表明:纳米球形聚苯胺的粒径在30～40 nm之间,所制得的电极比容为610.3 F.g-1(0.5 mol/L H2SO4),显著高于纯活性炭电极的比容171.2 F.g-1;在5 mA.cm-2的充放电电流密度下,充放电1000次后比容为首次放电比容的71.3%;这表明纳米聚苯胺的加入能显著提高电极的电化学性能。用此组装的非对称型超级电容器的性能也优于用纯活性炭组装的对称型超级电容器,表明纳米聚苯胺是一种性能优异的超级电容器电极材料。The nano -polyaniline was synthesized by the way of microemulsion method and used to prepare PANI/AC electrode. The morphology of PANI was characterized by TEM. The electrochemical performances of the PANI/AC electrode were carried out by means of cyclic voltammograms and galvanostatic charge - discharge experiments. The results showed that the prepared PANI was hollow spherical and the diameter was ca. 30 -40 nm. The specific capacitance of the PANI/AC electrode measured in O. 5mol/L H2SO4 was 610.3 F · g-1, which was much higher than that of AC electrode （ 171.2 F· g-1 ）. Its capacity could retain 71.3% of the initial specific capacitance 1000 cycles later at 5 mA · cm-2 These indicated that the performances of the PANI/AC electrode were much improved by nano - polyaniline. The performances of the asymmetric capacitor assembled by PANI/AC electrode were also better than that of symmetric capacitor containing two pure AC electrodes. These indicate that the nano -polyaniline was a promising material for the application of the supercapacitors.

关 键 词：纳米聚苯胺 微乳液法 电容性能 超级电容器 聚苯胺/活性炭电极 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]