| PANI/AC复合材料电容器的交流阻抗分析 |
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| 引用本文： | 张曦,潘春跃,赵悠曼,王虹,李中延.PANI/AC复合材料电容器的交流阻抗分析[J].电源技术,2009,33(9). |
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| 作者姓名： | 张曦 潘春跃 赵悠曼 王虹 李中延 |
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| 作者单位： | 1. 中南大学化学化工学院,湖南,长沙,410083
2. 迈科科技有限公司,广东,东莞,523800 |
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| 摘 要： | 以活性炭和苯胺为原料,原位聚合法制备了聚苯胺/活性炭复合材料(PANI/AC).采用交流阻抗测试分析比较了PANI/AC复合材料和活性炭两电极体系电容器在6 mol/L KOH电解液中的电容性能.利用交流阻抗谱图计算电容器的比容量,PANI/AC低频区比容量为401.47 F/g,比AC比容量194.64 F/g提高了2.06倍.100 kHz～0.01 Hz频率范围内两类电容器的阻抗谱图均出现倾角为45°的直线段,其相位角均小于理想电容器的90°,分别为68.14°和80.55°,由于不同电压下PANI氧化态的转变,PANI/AC电极电荷转移阻抗随开路电压增大逐渐减小.
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| 关 键 词： | 聚苯胺 交流阻抗 复合材料 电容器 |
Electrochemical impendence study of polyaniline/activated carbon composite material capacitor |
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| ZHANG Xi,PAN Chun-yue,ZHAO You-man,WANG Hong,LI Zhong-yan.Electrochemical impendence study of polyaniline/activated carbon composite material capacitor[J].Chinese Journal of Power Sources,2009,33(9). |
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| Authors: | ZHANG Xi PAN Chun-yue ZHAO You-man WANG Hong LI Zhong-yan |
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| Affiliation: | ZHANG Xi1,PAN Chun-yue1,ZHAO You-man1,WANG Hong2,LI Zhong-yan2(1.Institute of Chemistry and Engineering,Central South University,Changsha Hunan 410083,China,2.McNair Technology Co.,Ltd.,Dongguan Guangdong 523800,China) |
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| Abstract: | PANI/AC composite material was synthesized by in-situ polymerization method using aniline and activated carbon as raw materials.Electrochemical impendence was used to measure the electrochemical performance of PANI/AC and AC materials in electrolyte of 6mol/L KOH aqueous solution.In two-electrode capacitor,the capacitance was estimated from impendence spectroscopy,the PANI/AC exhibits high specific capacitance of 401.47F/g,which is 2.06 times larger than that of the AC's specific capacitance of 194.64F/g.In... |
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| Keywords: | polyaniline electrochemical impendence composite material capacitor |
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