中山大学学报（自然科学版）Issue(3)：87-92,6.
炭气凝胶微球的物理活化与化学活化比较
Activation of Carbon Aerogel Spheres:Physical Activation and Chemical Activation
摘要
Abstract
Carbon aerogel spheres were activated by carbon dioxide (CO2 ) and potassium hydroxide (KOH), respectively.The electrodes of supercapacitor were made from the products before and after ac-tivation.To understand the activation mechanism , the pore structure and electrochemical performance of these products were investigated .The results showed that both CO 2 and KOH activation could improved the pore structure and electrochemical performance , the highest BET surface area of active products could reach 1 320 m 2/g and the capacitance were increased by three times , respectively.Furthermore the re-sults also showed that the activation mechanisms of CO 2 and KOH were different.The mesopores of car-bon aerogel spheres were kept after CO 2 activation.Such mesopores acted as the fast channel of electrons to enhance mass transfer rate.The micropores of carbon aerogel spheres were increased significantly after KOH activation, which enhanced the active surface area to improve the electrochemical performance .关键词
炭气凝胶微球/活化/电化学性能/结构/超级电容器Key words
carbon aerogel sphere/activation/electrochemical performance/structure/supercapacitor分类
化学化工引用本文复制引用
刘宁..炭气凝胶微球的物理活化与化学活化比较[J].中山大学学报（自然科学版）,2013,(3):87-92,6.基金项目
新型聚合物材料设计合成与应用广东省高校重点实验室资助项目（0110106）；广东省中医药局科研资助项目（2010416）． （）
