高等学校化学学报2018，Vol.39Issue(6)：1242-1248,7.DOI:10.7503/cjcu20170763
沥青改性稻壳基活性炭的制备及电化学性能
Preparation and Electrochemical Properties of Rice Husk Based Activated Carbon Modified by Pitch
摘要
Abstract
Coal tar pitch with high carbon content and good conductivity were used as surface coating agents to modify rice husk-based activated carbon ( RHAC ) by low temperature mixing and medium temperature curing. The experimental results show that the optimum mixing mass ratio of pitch to RHAC is 1:5, in the organic electrolyte 1 mol/L of Et4NBF4/PC system, the volumetric capacitance from the original 67. 54 F/mL to 84. 34 F/mL. The volumetric capacitance was significantly increased. In addition, in the cyclic stability test, the capacitance retention rate of pitch-coated activated carbon was 91. 52％, which was higher than that of unmodified activated carbon(84. 11％) after 10000 cycles at the current density of 1 A/g. This method has greatly improved the electrochemical performance of rice husk-based activated carbon, which is simple and easy, green and pollution-free, provides a feasible method for the industrial production.关键词
改性/稻壳基活性炭/超级电容器/沥青Key words
Modification/Rice husk-based activated carbon/Volumetric capacitance/Pitch分类
化学化工引用本文复制引用
刘艳华,金璐,薛北辰,郭玉鹏..沥青改性稻壳基活性炭的制备及电化学性能[J].高等学校化学学报,2018,39(6):1242-1248,7.基金项目
吉林省科技发展计划项目(批准号:20150204063GX)资助. Supported by the Scientific and Technological Planning Project of Jilin Province, China( No.20150204063GX) . （批准号:20150204063GX）
