文献类型：期刊文献

中文题名：碳布负载的MnO_(2)-PANI复合材料的控制合成及其不对称超级电容器

英文题名：Controllable Synthesis of MnO_(2)-PANI Composite on Carbon Cloth and Its Asymmetric Supercapacitor

作者：杜双双[1];何颖[1];徐晨辉[1];李怀龙[1];程起林[1]

机构：[1]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

年份：2015

卷号：28

期号：4

起止页码：353

中文期刊名：功能高分子学报

外文期刊名：Journal of Functional Polymers

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：上海市基础研究重点项目(13NM1400801)

语种：中文

中文关键词：碳布;聚苯胺;二氧化锰;不对称超级电容器;电化学性能

外文关键词：carbon cloth;polyaniline;manganese dioxide;asymmetric supercapacitor;electrochemical properties

摘要：采用两步法实现了MnO_(2)-PANI复合物在碳布表面的生长。以二氧化锰-聚苯胺-碳布(MnO_(2)-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5mV/s时,不对称电容器的电势窗口可增至1.6V,其比容量为1.42F/cm^2;当功率密度为5000 W/kg时,能量密度可达到31.2W·h/kg,高于其他不对称电容器。
A facile two-step strategy was developed for synthesis of manganese dioxide(MnO_(2))-polyaniline(PANI)hybrid nanostructures on carbon cloth(CC).Asymmetric supercapacitor was assembled with MnO_(2)-PANI-CC ternary composite and carbon nanowires(CNWs)-CC as positive and negative electrodes,respectively.Structural characterizations and electrochemical performance of composites were evaluated 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 MnO_(2)-PANI-CC//CNWs-CC asymmetric supercapacitor increased up to 1.6 Vand the specific capacitance was 1.42F/cm^2 at the scanning speed 5 mV/s.The energy density of MnO_(2)-PANICC//CNWs-CC can reach 31.2 W·h/kg at the power density 5000 W/kg.