分别以聚乙烯醇(PVA)/热同性酚醛树脂(PF)/碳酸钾(K2CO3)和PVA/PF的水溶液为纺丝原液,通过静电纺丝、固化和炭化处理制得多孔纳米炭纤维.利用扫描电子显微镜(SEM)、低温氮气吸脱附等对所制多孔炭纳米纤维进行表征,并将所制多孔炭纤维作为模拟电容器电极材料,利用循环伏安和恒电流充放电进行了电化学性能测试.结果表明:纺丝原液中加入K2CO3后所制多孔纳米炭纤维的比表面积增大(从564 m2·g-1提高到668 m2·g-1),电化学性能提高(在电流密度为0.2 A·g-1的情况下,比电容由165 F·g-1提高到178 F·g-1).
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