| 摘要: |
| 纳米导电聚苯胺(PANI),作为超级电容器的电极材料,有着广阔的应用前景.采用三电极体系下的恒定电流法,通过多步电化学聚合获得以导电玻璃(ITO)为基底的纳米结构导电聚苯胺薄膜.采用场发射扫描电子显微镜(FESEM)对薄膜进行形貌表征.由于电极材料的纳米结构,材料的比电容在电流密度为1 A/g及 10 A/g下分别为829 F/g及667 F/g.以20 A/g的电流密度对电极进行500次的恒定电流充放电测试,电极的比电容下降为95.1%,显示了较好的循环稳定性. |
| 关键词: 超级电容器 纳米聚苯胺 薄膜电极 |
| DOI： |
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| 基金项目:国家自然科学基金（61204102）；上海市自然科学基金（11ZR1426700）；教育部高等学校博士学科点专项基金(20124407120013);广东“育苗工程”项目(2012LYM0046) |
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| Leafy nanostructure PANI for material of supercapacitors |
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XI Dong1, CHEN Xinman2
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1.College of Mathematics and Sciences,Shanghai Normal University;2.Institute of Optoelectronic Materials and Technology,Sourth China Normal University
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| Abstract: |
| Nanostructure conducting polyaniline(PANI) has great potential applications in supercapacitor electrode materials.In this paper,we report a template-free approach to synthesize PANI by a galvanostatic current procedure with a three-electrode configuration directly on indium-doped tin-oxide substrates (ITO).The morphology of product was characterized by Hitachi S-4800 field emission scanning electron microscope (FE-SEM).Due to the nanostructure,the specific capacitance of PANI film with the thickness of 100nm were measured as high as 829 F/g and 667 F/g at a charge-discharge current density of 1 A/g and 10 A/g respectively.After 500 cycle charge-discharge test employed at the current density of 20 A/g the PANI film still had a 95.1% capacitance retention. |
| Key words: supercapacitor nano-polyaniline film electrode |
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