Phenolic-based carbon nanofiber webs prepared by electrospinning for supercapacitors

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• 作者：Chang Ma^a ; ^b ; Yan Song^a ; ^{yansong1026@126.com} ; Jingli Shi^a ; ^{shijingli1963@163.com} ; Dongqing Zhang^a ; Ming Zhong^a ; ^b ; Quangui Guo^a ; Lang Liu^a
• 关键词：Electrospinning ; Porous materials ; Phenolic-based ; Carbon materials ; Supercapacitors
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：1 June, 2012
• 卷：76
• 期：Complete
• 页码：211-214
• 文件大小：658 K

摘要

Phenolic-based carbon nanofiber webs (PCNFWs) were prepared by electrospinning resole-type phenolic resin/PVA blend solution, followed by curing and carbonization. The PCNFWs presented rich micropores and a BET surface area of 416 m²/g without any activation process. The electrochemical properties of the PCNFWs were investigated in two- or three-electrode cell. In spite of moderate surface area, the PCNFWs showed excellent capacitance performance. The specific capacitance was up to 171 F/g at 5 mV/s and remained 84%at 100 mV/s. The excellent electrochemical performance was further confirmed through comparison with commercial activated carbon cloth (1201 m²/g). The encouraging results showed the potential of the PCNFWs as supercapacitor electrode material.