| 聚吡咯/海藻酸钠纳米球的制备及其应用于高性能超级电容器 |
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| 引用本文： | 马国富,牟晶晶,张稚国,孙看军,彭辉,雷自强.聚吡咯/海藻酸钠纳米球的制备及其应用于高性能超级电容器[J].物理化学学报,2013,29(11):2385-2391. |
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| 作者姓名： | 马国富 牟晶晶 张稚国 孙看军 彭辉 雷自强 |
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| 作者单位： | 1.Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China;2.College of Chemistry and Environmental Science, Lanzhou City University, Lanzhou 730070, P. R. China |
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| 基金项目： | 国家自然科学基金(21164009,21174114)及教育部“长江学者和创新团队发展计划”(IRT1177)资助项目 |
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| 摘 要： | 用海藻酸钠作为结构导向剂,通过原位氧化聚合吡咯法制备了聚吡咯/海藻酸钠(PPy/SA)纳米球.聚吡咯/海藻酸钠纳米球的形貌和结构通过扫描电镜(SEM)、X射线衍射(XRD)和傅里叶变换红外(FTIR)光谱进行表征.材料的电化学性能通过循环伏安法和恒电流充放电方法进行测试.电化学测试表明,聚吡咯/海藻酸钠纳米球在1 mol L-1KCl电解液中,电流密度为1 A g-1时其比电容高达347 F g-1.与纯聚吡咯相比较,聚吡咯/海藻酸钠纳米球具有更优异的循环稳定性能.
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| 关 键 词： | 聚吡咯 海藻酸钠 纳米球 超级电容器 电极材料 |
| 收稿时间： | 2013-05-27 |
| 修稿时间： | 2013-09-05 |
Preparation of Polypyrrole/Sodium Alginate Nanospheres and Their Application for High-Performance Supercapacitors |
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| MA Guo-Fu,MU Jing-Jing,ZHANG Zhi-Guo,SUN Kan-Jun,PENG Hui,LEI Zi-Qiang.Preparation of Polypyrrole/Sodium Alginate Nanospheres and Their Application for High-Performance Supercapacitors[J].Acta Physico-Chimica Sinica,2013,29(11):2385-2391. |
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| Authors: | MA Guo-Fu MU Jing-Jing ZHANG Zhi-Guo SUN Kan-Jun PENG Hui LEI Zi-Qiang |
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| Affiliation: | 1.Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, P. R. China;2.College of Chemistry and Environmental Science, Lanzhou City University, Lanzhou 730070, P. R. China |
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| Abstract: | Polypyrrole/sodium alginate (PPy/SA) nanospheres are successfully synthesized by oxidative polymerization of pyrrole using sodium alginate as structural templating agent. The morphology and structure of the PPy/SAnanospheres were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Their electrochemical properties are investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge tests. The PPy/SAnanospheres exhibit a high specific capacitance of 347 F·g-1 at a charge-discharge current density of 1 A·g-1 in 1 mol·L-1 KCl electrolyte. Unlike pure PPy, there was little attenuation in the capacitance of the PPy/SAnanospheres over 500 continuous charging-discharging cycles demonstrating good electrochemical stability. This result indicates that PPy/SAnanospheres are a promising candidate for high-performance supercapacitors. |
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| Keywords: | Polypyrrole Sodium alginate Nanosphere Supercapacitor Electrode material |
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