中南大学学报（自然科学版）2011，Vol.42Issue(4)：865-870,6.
活化剂种类对活性炭结构及性能的影响
Effect of activated agents on structure and performance of activated carbon
摘要
Abstract
Using petroleum cokes as raw material, and KOH, NaOH, K2CO3 and Na2CO3 as activated agent respectively,activated carbons were prepared in the chemical activation process. The effects of activated agents on the structure of prepared carbon were investigated by tap density and N2 adsorption method, and the electrochemical properties of the activated carbons were determined using two-electrode capacitors in 1 mol/L Et4NBF4/PC electrolyte by LAND battery tester and electrochemical workstation. The results indicate that KOH is the most efficient activated agent, and a high specific surface area of 2 362 m2/g and a high micropore volume of 1.263 cm3/g are obtained in the activated carbon prepared by KOH. Used in supercapacitors, the activated carbon shows a well electrochemical performance, and the specific capacitance is 128.0 F/g. With the decrease of the alkalinity, the activated ability of the agent reduces; K2CO3 and Na2CO3 are not suitable for preparation of activated carbon from petroleum cokes.关键词
超级电容器/活性炭/石油焦/活化剂Key words
supercapacitor/ activated carbon/ petroleum coke/ activated agent分类
信息技术与安全科学引用本文复制引用
王新宇,孙晓峰,张治安,宋海申,赖延清,刘业翔..活化剂种类对活性炭结构及性能的影响[J].中南大学学报（自然科学版）,2011,42(4):865-870,6.基金项目
国家高技术研究发展计划("863"计划)项目(2008AA03Z207) （"863"计划）
