【摘 要】
:
以聚酰亚胺(PI)薄膜边角料为前驱体,采用CO_2物理活化法制备高比表面活性炭。研究了活化工艺对PI活性炭孔结构性能的影响及其活化机理,探讨了活性炭孔结构对其电化学性能的影响
【机 构】
:
大连理工大学石油与化学工程学院,大连理工大学化工学院
论文部分内容阅读
以聚酰亚胺(PI)薄膜边角料为前驱体,采用CO_2物理活化法制备高比表面活性炭。研究了活化工艺对PI活性炭孔结构性能的影响及其活化机理,探讨了活性炭孔结构对其电化学性能的影响。结果表明,PI薄膜可以在相对较低的温度下经CO_2活化制备出具有无定型微晶质炭结构、孔隙结构发达的活性炭,比表面积最高可达2809 m2/g,总孔容积达1.423 cm3/g;通过控制CO_2活化工艺,可实现对PI活性炭的孔道尺度与分布的调控。作为超级电容器电极材料,PI活性炭在100 m A/g条件下,比电容高达237 F/g,电
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