熔盐介质活化法制备多孔纳米炭纤维及电化学性能研究  

Preparation and electrochemical performance of porous carbon nanofibers via molten salt assisted KOH activation

作　　者：王冉冉[1] 马昌[1] 谢振宇[1] 曹二闯 史景利[1] 

机构地区：[1]天津工业大学材料科学与工程学院,天津300387

出　　处：《炭素技术》2017年第2期21-25,共5页Carbon Techniques

基　　金：国家自然科学基金项目(51502201);天津市自然科学基金项目(16JCQNJC06300)

摘　　要：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)。In this article, a phenolic-based nanofiber was prepared by electrospinning from thermosetting phenolic resin, followed by activation with KOH-containing molten salt at high temperature. It was found that, by adding a small dosage of KOH in the molten salt, both the porous volume and specific surface area of the nanofibers obtained can be greatly improved. Meanwhile, the electrochemical performance of the sample carbonized at 800℃ reached the highest value of 288 F/g at 0.2 A/g.

关 键 词：纳米炭纤维 静电纺丝 熔盐活化 

分 类 号：TQ342.791[化学工程—化纤工业]