林产化学与工业2017，Vol.37Issue(1)：87-93,7.DOI:10.3969/j.issn.0253-2417.2017.01.011
二次水蒸气活化制备离子液体超级电容器活性炭的研究
Preparation of Activated Carbon by Steam Re-activation forIonic Liquid Electrolyte Supercapacitors
摘要
Abstract
In order to improve the pore structure and electrochemical performance of commcercially available activated carbons, the coal-based activated carbon(CAC), coconut shell-based activated carbon(CSAC) and bamboo-based activated carbons(BAC) were chosen for the steam re-activated.The pore structure and electrochemical performance of the activated carbons were characterized by using nitrogen adsorption, galvanostatic charge/discharge, cyclic voltammetry curve and electrochemical impedance spectroscopy(EIS).The effects of the re-activation parameters of the activation temperature and dosage of steam on the pore structure and electrochemical properties of activated carbons were investigated.The results showed that the steam re-activation could significantly improve the development of pore structure, especially the mesopores, and the adsorption capacity of iodine and methylene blue as well as the electrochemical performance.The properties of coconut shell-based activated carbon was significantly improved by the re-activation compared with other activated carbons.After re-activation, the specific capacitance of the coconut shell-based activated carbon could reach 106 F/g, which was 2.5 times of the pristine activated carbon.关键词
活性炭/水蒸气二次活化/孔隙结构/离子液体超级电容器Key words
activated carbon/steam re-activation/pore structure/ionic liquid supercapacitor分类
化学化工引用本文复制引用
陈莉晶,左宋林,张秋红,陈继锡,王永芳..二次水蒸气活化制备离子液体超级电容器活性炭的研究[J].林产化学与工业,2017,37(1):87-93,7.基金项目
国家林业局948技术引进项目(2012-4-08) （2012-4-08）
