无机材料学报2017，Vol.32Issue(11)：1181-1187,7.DOI:10.15541/jim20170049
聚酰亚胺基高比表面活性炭及其电化学性能研究
Preparation and Electrochemical Performance of Polyimide-based Activated Carbons with High Surface Area
摘要
Abstract
Polyimide-based activated carbon (PIAC) was prepared by CO2 activation using polyimide (PI) film offcut as precursor. The influences of activation conditions on the pore structure of PI-based activated carbons and the activa-tion mechanism were investigated. Effects of pore structure on electrochemical properties of PIAC were also investi-gated. Results show that the PI film offcuts can be used to prepare the PI-based activated carbon with high surface area, abundant porosity and amorphous carbon structure at relatively low temperature via CO2 activation, in which the highest specific surface area was 2809 m2/g with pore volume of 1.423 cm3/g. Pore size and distribution of activated carbon can effectively be concentrated at 0.7-2 nm with proper mesopores by controlling CO2 activation time. As an electrode material, PIAC shows an excellent electrochemical performance with specific capacitance of up to 237 F/g at current density of 100 mA/g and capacitance retention of 86%.关键词
聚酰亚胺薄膜/活性炭/CO2活化/高比表面积/电化学性能Key words
polyimide film/activated carbon/CO2 activation/high specific surface/electrochemical performance分类
化学化工引用本文复制引用
王浩,李琳,王春雷,王倩,梁长海,王同华..聚酰亚胺基高比表面活性炭及其电化学性能研究[J].无机材料学报,2017,32(11):1181-1187,7.基金项目
国家自然科学基金(21436009, 21376037) （21436009, 21376037）
中央高校基本科研业务费(DUT14RC(3)049) National Natural Science Foundation of China (21436009, 21376037) （DUT14RC(3）
Fundamental Research Funds for the Central Universities (DUT14RC(3)049) （DUT14RC(3）
