物理化学学报2009，Vol.25Issue(4)：757-761,5.
活性炭二次活化对其电化学容量的影响
Effect of the Activated Carbon Reactivation on Its Electrochemical Capacitance
摘要
Abstract
To enhante the electrochemical capacitance of activated carbon(AC),which is used as the electrode material for electrochemical super capacitors(ESC),the AC material was reactivated using chemical activation method and KOH as reactivation agent.The obtained material was designated as reactivated AC.Pristine AC and reactivated AC were both Used as ESC electrode materials and simulated ESCs were assembled to test their electrochemical performance.Results showed that the electrochemical capacitance of the reactivated AC was enhanced up to 145.O F·g-1 in organic electrolyte,while the pristine AC only obtained a value of 45.0 F·g-1.To determine the reason for the enhancement of the samples electrochemical capacitance,the specific surface area,N2 adsorption-desorption isotherms, and pore diameter distributions were investigated.Results showed that reactivation treatment enhanced the pore distribution content of 2 to 3 nm(pore diameter).Pores with diameters from 2 to 3 nin(pore diameter)are thus important in the carb on material's electrochemical capacitance using organic electrolyte.关键词
活性炭/二次活化/电化学超级电容器/电化学容量Key words
Activated carbon/Reactivation/Electrochemical super capacitor/Electrochemical capacitance分类
化学化工引用本文复制引用
江奇,赵晓峰,黄彬,杜冰,赵勇..活性炭二次活化对其电化学容量的影响[J].物理化学学报,2009,25(4):757-761,5.基金项目
国家杰出青年科学基金(50588201).四川省科技攻关计划(05GG009-003,2006Z02-006-1),四川省应用基础研究基金(2008JY0061)及西南交通大学基础科学研究基金(2007B20)资助 （50588201）
