Nitrogen-doped activated carbons with porous structure for supercapacitor are prepared under different process conditions using perilla as carbon source,tofu as nitrogen source and KCl/KOH as activated agent.The effects of activation temperature,activation time and the N doping amount on the electrochemical performances of activated carbon are investigated.The results show that the high quality activated carbon as electrode material could be prepared under the conditions of activation temperature 800℃,adding 2.0 g of tofu,and activation time 1.0 h.Under these conditions,its specific surface area of the sample is 1187.55 m2/g and specific capacitance is 277 F/g.
perilla activated carbondopingsupercapacitorelectrode material
NETL
NSTL
万方数据
