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首页> 外文期刊>International Journal of Electrochemical Science >Porous Multilayered Films Based on poly(3,4- ethylenedioxythiophene) and poly(indole-5-carboxylic acid) and Their Capacitance Performance
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Porous Multilayered Films Based on poly(3,4- ethylenedioxythiophene) and poly(indole-5-carboxylic acid) and Their Capacitance Performance

机译：基于聚（3,4-乙撑二氧噻吩）和聚（吲哚-5-羧酸）的多孔多层膜及其电容性能

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摘要

Layer-by-layer (LBL) technique is a prevalent way to construct multilayered films. Herein, using high conducting poly(3,4-ethylenedioxythiophene) (PEDOT) and good stable redox-active poly(indole-5- carboxylic acid) (5-PICA), an alternately multilayered porous films has been prepared by the electrochemical LBL method. The alternately multilayered films were characterized by scanning electron microscope (SEM), cyclic voltammetry (CV), galvanostatic charge-discharge (CD) and electrochemical impedance spectroscope (EIS) techniques. Compared with monolayered PEDOT (147.8 F g-1) and 5-PICA(198.3 F g-1), the PEDOT/5-PICA/PEDOT/5-PICA 4-layered film exhibited a -1 -1 higher specific capacitance which reached 281.7 F g at 20 A g in 1.0 M H2SO4 solution. Furthermore, the specific capacitance of 4-layered film still had good stability, viz., 73% retention after 1000 cycles at the range of potential -0.15 to 1.0 V and even reached 95% if the potential range was from -0.15 to 0.8 V. Therefore, these results indicated that the PEDOT/5-PICA/PEDOT/5-PICA was a potential electrode material for supercapacitors.
机译：逐层（LBL）技术是构造多层膜的普遍方法。在此，使用高导电性聚（3,4-亚乙二氧基噻吩）（PEDOT）和良好的稳定氧化还原活性聚（吲哚-5-羧酸）（5-PICA），通过电化学LBL方法制备了交替多层多孔膜。通过扫描电子显微镜（SEM），循环伏安法（CV），恒电流充放电（CD）和电化学阻抗谱仪（EIS）技术对交替多层膜进行了表征。与单层PEDOT（147.8 F g-1）和5-PICA（198.3 F g-1）相比，PEDOT / 5-PICA / PEDOT / 5-PICA 4层膜的比电容高-1 -1，达到在1.0 M H2SO4溶液中，在20 A g下为281.7 F g。此外，四层膜的比电容仍具有良好的稳定性，即在电位为-0.15至1.0 V的范围内经过1000次循环后仍保留了73％，如果电位范围为-0.15至0.8 V，则甚至达到了95％。因此，这些结果表明，PEDOT / 5-PICA / PEDOT / 5-PICA是用于超级电容器的潜在电极材料。

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