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电化学  2011 

酚醛基活性碳纤维双电层电化学电容器的研究

, PP. 57-62

Keywords: 酚醛,活性碳纤维,超级电容器

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Abstract:

利用KOH活化制得了酚醛基活性碳纤维(ACF).研磨后形成细颗粒酚醛基活性碳纤维材料(P-ACF).对比研究P-ACF与ACF在6mol·L-1KOH溶液中的电化学性能,结果表明:P-ACF电极表现出更佳的电容性质,比电容达200F·g-1,大电流放电比电容衰减速率较慢,其微孔离子迁移电阻(Rp,2.96Ω)较ACF的(4.65Ω)小.研磨可增加ACF的断面暴露量,降低纤维间接触电阻和微孔内离子迁移电阻.

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