| 碳布负载的MnO2-PANI复合材料的控制合成及其不对称超级电容器 |
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| 引用本文： | 杜双双,何颖,徐晨辉,李怀龙,程起林. 碳布负载的MnO2-PANI复合材料的控制合成及其不对称超级电容器[J]. 医学教育探索, 2015, 28(4): 353-359 |
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| 作者姓名： | 杜双双 何颖 徐晨辉 李怀龙 程起林 |
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| 作者单位： | 华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海 200237;华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海 200237;华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海 200237;华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海 200237;华东理工大学材料科学与工程学院, 超细材料制备与应用教育部重点实验室, 上海 200237 |
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| 基金项目： | 上海市基础研究重点项目(13NM1400801) |
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| 摘 要： | 采用两步法实现了MnO2-PANI复合物在碳布表面的生长。以二氧化锰-聚苯胺-碳布(MnO2-PANI-CC)为正极,碳纳米线-碳布(CNWs-CC)为负极,构建不对称超级电容器。采用场发射扫描电镜、X射线能谱仪、傅里叶红外光谱、X射线光电子能谱、循环伏安及恒流充放电对三元复合物的结构和电化学性能进行表征。研究表明:当扫描速率为5 mV/s时,不对称电容器的电势窗口可增至1.6 V,其比容量为1.42 F/cm2;当功率密度为5 000 W/kg时,能量密度可达到31.2 W·h/kg,高于其他不对称电容器。
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| 关 键 词： | 碳布 聚苯胺 二氧化锰 不对称超级电容器 电化学性能 |
| 收稿时间： | 2015-09-29 |
Controllable Synthesis of MnO2-PANI Composite on Carbon Cloth and Its Asymmetric Supercapacitor |
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| DU Shuang-shuang,HE Ying,XU Chen-hui,LI Huai-long and CHENG Qi-lin. Controllable Synthesis of MnO2-PANI Composite on Carbon Cloth and Its Asymmetric Supercapacitor[J]. Researches in Medical Education, 2015, 28(4): 353-359 |
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| Authors: | DU Shuang-shuang HE Ying XU Chen-hui LI Huai-long CHENG Qi-lin |
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| Affiliation: | Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China |
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| Abstract: | A facile two-step strategy was developed for synthesis of manganese dioxide (MnO2)-poly-aniline (PANI) hybrid nanostructures on carbon cloth (CC). Asymmetric supercapacitor was assembled with MnO2-PANI-CC ternary composite and carbon nanowires(CNWs)-CC as positive and negative electrodes, respectively. Structural characterizations and electrochemical performance of composites were eva-luated by Scanning Electron Microscope (SEM), Energy Disperse Spectroscopy (EDS), Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Photoelectron Spectroscopy (XPS), Cyclic Voltammetry (CV), and galvanostatic Charge-Discharge (CD) techniques. Electrochemical performance results showed that the voltage range of MnO2-PANI-CC//CNWs-CC asymmetric supercapacitor increased up to 1.6 V and the specific capacitance was 1.42 F/cm2 at the scanning speed 5 mV/s. The energy density of MnO2-PANI-CC//CNWs-CC can reach 31.2 W·h/kg at the power density 5 000 W/kg. |
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| Keywords: | carbon cloth polyaniline manganese dioxide asymmetric supercapacitor electrochemical properties |
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