【摘要】 以衰老树叶为碳源，采用先预碳化后活化的方法合成生物质多孔碳，采用XRD、SEM、TEM、N2吸附-脱附，FT-IR等测试手段对其结构表征。结果显示，当碳碱比为3,400℃预碳化3 h,600℃高温活化1 h后样品以无定型碳形式存在，透光性好，呈现多孔结构，比表面积为1 065 m2·g-1，孔容为0.91 cm3·g-1，且孔径分布在5～15 nm之间，属于介孔孔径分布范围，电化学性能分析表明，在0.5 A·g-1电流密度下其比电容最高可达203 F·g-1。更多还原

【Abstract】 Biomass porous carbon materials was synthesized by pre-carbonization followed by activation using aging leaves as carbon source. The structures of the resultant materials were characterized by XRD, TEM, SEM, N₂adsorption–desorption and FT-IR. The results indicated when carbon alkali ratio of 3, carbonized for 3 h at 400 ℃,high temperature activation for 1 h at 600 ℃, that sample in the form of amorphous carbon and good pervious to light,porous structure, specific surface area of 1 065m2·g^-1, entrance is 0.91 cm3·g^-1, and pore size distribution between 5-15 nm, belongs to the mesoporous pore size distribution range. The electrochemical analysis showed that electrode specific capacitance of the material is 203 F·g^-1when the current density is 0.5 A·g^-1.更多还原