以热固性酚醛树脂为炭前驱体,经过静电纺丝法得到纳米纤维,对纳米纤维毡固化完成后,以KOH为活化剂、熔盐作为介质在高温下对纳米炭纤维造孔。结果表明,在熔盐介质中加入少量KOH可以使孔体积和比表面积有很大的提高,孔结构得到改善。当活化温度为800℃时,样品的电化学性能最高(288 F/g,0.2 A/g)。 Using thermosetting phenolic resin as carbon precursor, nanofibers are obtained through electrospinning method. After the nanofiber mat is cured, KOH is used as activator and molten salt is used as a medium to make carbon nanofibers at high temperature. The results show that the addition of a small amount of KOH in the molten salt medium can greatly increase the pore volume and specific surface area, and improve the pore structure. When the activation temperature is 800 ℃, the electrochemical performance of the sample is the highest (288 F / g, 0.2 A / g).