聚3,4-乙烯二氧噻吩/活性炭扣式复合电极的制备及其性能研究

材料导报, 2015, 29(6): 1-5. doi: 10.11896/j.issn.1005-023X.2015.06.001

聚3,4-乙烯二氧噻吩/活性炭扣式复合电极的制备及其性能研究

杨文耀 ^1, , 邱永龙 ^2, , 夏双 ^3, , 赵月涛 ^4, , 陈燕 ^5, , 何鑫 ^6, , 徐建华 ^7, , 杨亚杰 ^8,

1.电子科技大学光电信息学院,成都,610054

2.中国兵器装备集团(成都)火控技术中心,成都,611731

3.中国人民解放军68129部队,兰州,730000

4.电子科技大学光电信息学院,成都,610054

5.电子科技大学光电信息学院,成都,610054

6.电子科技大学光电信息学院,成都,610054

7.电子科技大学光电信息学院,成都,610054

8.电子科技大学光电信息学院,成都,610054

基金项目: 国家自然科学基金(61101029,51477026,61204098) 教育部新世纪优秀人才计划(NCET-12-0091)

关键词：超级电容器 , 聚3,4-乙烯二氧噻吩 , 活性炭 , 复合材料 , 电化学

Preparation and Characterization of PEDOT/AC Button Electrodes

Keywords： supercapacitor , poly(3,4-ethylenedioxythiophene) , active carbon , composite material , electro-chemistry

采用原位聚合及物理球磨复合法制备了不同配比、具有多孔结构的聚3,4-乙烯二氧噻吩/活性炭扣式复合电极(PEDOT/AC).通过X射线衍射、扫描电子显微镜、氮气吸脱附等温曲线、BJH孔径分布等方法对样品进行了表征.采用交流阻抗、循环伏安和恒流充放电等方法研究了不同配比复合电极的电化学特性.结果表明AC作为PEDOT的支架,不仅可以提高电极的比容量,还能增强由于PEDOT力学性能低而造成的循环寿命低的问题.当PEDOT占PEDOT/AC质量的40％时(P40电极),电极的微孔孔径主要分布在2～10 nm之间,比表面积达1186.3m2/g.P40电极比容量可以达到157 F/g,经过2000次循环后仍保持有87.6％的比容量,具有优异的循环特性.

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