【摘要】 选择廉价的煤沥青为原料,无水三氯化铝为催化剂,在不同的工艺条件下制备了双电层电容器电极用活性炭前驱体。分别考察了催化剂用量、炭化时间等工艺条件对活性炭孔结构的影响,并采用DSC、SEM、XRD对其进行表征。实验结果表明,催化剂用量为煤沥青质量的7.5%、反应时间为6 h时煤沥青的软化点最高;以煤沥青为原料,采用无水三氯化铝为催化剂,能够制备得到微晶结构良好的活性炭前驱体;在炭化温度为580℃、炭化时间为50 min的煤沥青是较好的活性炭前驱体。更多还原

【Abstract】 The activated carbon precursor for electric double layer capacitors was prepared,by the raw material of coal tar pitch and the anhydrous aluminum chloride catalyst. The influence of catalyst amount,carbonized time on pore structure of activated carbon was investigated. and characterized by DSC,SEM and XRD.The results showed that softening point of coal tar pitch was highest under the conditions of 7.5 % catalyst,6 h.The activated carbon precursor was prepared under the conditions of carbonized temperature 580 ℃,carbonized time 50 minutes.更多还原