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无机材料学报

无机材料学报 ›› 2011, Vol. 26 ›› Issue (8): 857-862.DOI: 10.3724/SP.J.1077.2011.00857

• 研究论文 • 上一篇    下一篇

己二酸/酚醛树脂共聚炭化制备多孔炭材料及其电性能研究

夏笑虹, 刘洪波, 黄衍瑞, 杨 丽, 石 磊   

  1. (湖南大学 材料科学与工程学院, 长沙 410082)
  • 收稿日期:2010-10-10 修回日期:2010-12-07 出版日期:2011-08-20 网络出版日期:2011-07-14
  • 作者简介:夏笑虹(1977-), 女, 博士研究生. E-mail: xia_spring@163.com
  • 基金资助:

    国家自然科学基金重点项目(50872032); 中央高校基本科研业务费

Preparation of Porous Carbon by Polymer Blending of Phenolic Resin and Adipic Diacid

XIA Xiao-Hong, LIU Hong-Bo, HUANG Yan-Rui, YANG Li, SHI Lei   

  1. (College of Materials Science and Engineering, Hunan University, Changsha 410082, China)
  • Received:2010-10-10 Revised:2010-12-07 Published:2011-08-20 Online:2011-07-14
  • Supported by:

    National Natural Science Foundation of China (50872032); The Fundamental Research Funds for the Central University

PDF (PC)

1298

被引次数

9 | 1

摘要： 以酚醛树脂(PF)为炭前驱体, 己二酸(DA)为致孔链段, 利用聚合物共聚炭化法制备双电层电容器用多孔炭材料. 通过红外和热重分析证实己二酸与酚醛树脂发生了化学反应, DA以链段或支链的形式存在于酚醛树脂固化体系中, 并在后续炭化过程中热解逸出. 氮气吸附分析表明酚醛树脂固化体系中的DA起到了一定的造孔作用, 随着DA加入量增加, 多孔炭比表面积先增大后减小, 当w(PF)/w(DA)=3:1时所得多孔炭的比表面积为550 cm2/g, 孔容为0.27 cm3/g. 采用直流充放电法、交流阻抗法和循环伏安法测定以上述多孔炭为电极材料的双电层电容器的电化学性能, 结果表明: w(PF)/w(DA)=3:1时制得的多孔炭电极在30% KOH电解液中比电容为145 F/g, 电流密度增大50倍, 比电容保持率达到70 %. 

关键词: 酚醛树脂, 己二酸, 聚合物共聚炭化, 多孔炭, 电化学性能

Abstract: Porous carbons used for electric double layer capacitors (EDLCs) were prepared by chemical blending of phenolic resin (PF) and adipic diacid (DA). Chemical reaction of PF with diacid is manifested by a shift of carbonyl stretching peak of diacid to a higher frequency in FT-IR spectra and a higher decomposition temperature of diacid in TG curves. The influences of the ratio of w(DA) to w(PF) on pore structure, adsorption behavior and capacity performance were investigated. The specific surface area and total pore volume increase with the ratio of w(DA) to w(PF) at first and then decrease, reach the maximum at the value of w(PF)/w(DA), which are 550 cm2/g and 0.27 cm3/g, respectively. When the porous carbon used for the electrodes of electrochemical double layer capacitor (EDLC), a satisfied speci-c capacitances of 145 F/g in 30 wt% KOH aqueous electrolytes is acquired and the capacitance maintenance achieve 70% while the current density enlarged 50 times.

Key words: phenolic resin, adipic diacid, chemical blending, porous carbon, electrochemical performance

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