详细信息
文献类型:期刊文献
中文题名:超级电容器用PbO2电极的电沉积工艺
英文题名:Electrodeposition Technique of PbO_2 Electrode Applied in Supercapacitor
作者:张波[1,1,2];钟菊花[1];程振民[2]
机构:[1]华东理工大学物理系,上海200237;[2]华东理工大学化学工程联合国家重点实验室,上海200237
年份:2011
卷号:37
期号:2
起止页码:193
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:电化学电容器;电沉积PbO2;活性炭;充放电性能
外文关键词:electrochemical capacitor; electro-deposited PbO_2; active carbon; charge-discharge performance
摘要:以钛板为基底,采用电沉积方法制备了Ti-PbO2电极,与活性炭(AC)组成超级电容器。研究了铅盐种类对电沉积PbO2电极放电性能的影响,发现用Pb(CH3COO)2做溶质的氢氧化钠溶液制备的PbO2电极容量最大。利用不同浓度的氢氧化钠溶液配置饱和醋酸铅电解液,制备PbO2电极进行了放电测试,研究了氢氧化钠浓度对电沉积PbO2放电性能的影响。采用最优电沉积PbO2作正极,活性炭、涂膏铅电极作负极,分别组装成超级电容器和铅酸电池进行大电流充放电,结果表明,超级电容器性能远高于铅酸电池。
Ti/PbO_2 electrode was prepared by means of electrochemical deposition.PbO_2-AC super-capacitor was assembled by PbO_2 and active carbon(AC).Effects of different lead salts on the discharge capacity of electrodeposited PbO_2 electrode were studied.The PbO_2 electrode prepared using sodium hydroxide solution containing Pb(CH_3COO)_2 had the largest capacity.Different samples of PbO_2 electrode were prepared in sodium hydroxide solutions with different concentration containing saturated lead acetate,and then were assembled with AC to conduct discharge test of PbO_2-AC super-capacitor.Two PbO_2 electrodes prepared by the optimized method were employed as anode,while AC and pasted lead electrode were employed as cathode,constructing the PbO_2-AC super-capacitor and lead acid battery respectively.Then,the charge-discharge tests with large current were conducted,and results indicated that the performance of super-capacitor was far above the performance of lead acid battery.
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