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林产化学与工业 ›› 2018, Vol. 38 ›› Issue (6): 42-50.doi: 10.3969/j.issn.0253-2417.2018.06.006

• 研究报告 • 上一篇    下一篇

纸基炭电极材料的制备及其电化学性能研究

许升, 吕宗泽, 易雪亭, 张文, 李志国   

  1. 东北林业大学 材料科学与工程学院;生物质材料科学与技术教育部重点实验室, 黑龙江 哈尔滨 150040
  • 收稿日期:2018-05-29 出版日期:2018-12-25 发布日期:2018-12-27
  • 通讯作者: 李志国,副教授,博士,硕士生导师,主要从事生物质多孔碳材料的研究;E-mail:lizgmse@nefu.edu.cn。 E-mail:lizgmse@nefu.edu.cn
  • 作者简介:许升(1993-),男,福建福州人,硕士生,主要从事生物质纤维素基电极材料的制备、表面结构调控及其电性能研究
  • 基金资助:
    中央高校基本科研业务费专项资金项目(2572017DB06);大学生创新项目(201510225058)

Construction and Electrochemical Performance of Paper-based Carbon Electrode Materials

XU Sheng, LÜ Zongze, YI Xueting, ZHANG Wen, LI Zhiguo   

  1. Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China
  • Received:2018-05-29 Online:2018-12-25 Published:2018-12-27

摘要: 以工业滤纸为炭基材料,聚氧乙烯-聚氧丙烯-聚氧乙烯三嵌段聚醚(普朗尼克F127)为软模板,1,3,5-三甲苯为扩孔剂,在添加3-氨基苯酚(氮源)和六次甲基四胺的条件下进行水热合成反应制得纸基复合材料,并经炭化制得氮掺杂介孔炭化复合材料(NMC-700),进一步KOH活化后制得活化氮掺杂介孔炭化复合材料(ANMC-700),同时以工业滤纸直接炭化制得的炭化滤纸(C-700)样品为对照,采用SEM、TEM、XRD、XPS等方法对3种炭材料进行了表征。研究结果表明:ANMC-700表面形成了粒径0.6~7 μm的炭微球,孔结构由随机分布、蠕虫状的孔组成,比表面积高达1 559 m2/g,孔容为0.80 cm3/g,且氮原子已经成功掺杂到炭骨架中,含氮量为3.60%,含氧量为13.65%。电化学性能测试结果表明:以6 mol/L KOH为电解质溶液,在1 A/g的电流密度下,ANMC-700的比电容可达284 F/g,在20 A/g的电流密度下其比电容仍能保持在173 F/g,并在此电流密度下经过10 000次循环充放电,其电容保持率在98.6%,表现出良好的电化学稳定性。

关键词: 生物质纤维基材料, 碳电极材料, 介孔, 活化, 超级电容器

Abstract: Using industrial filter paper as carbon-based material, Pluronic F127 as soft template,1,3,5-trimethylbenzene aspore-expanding agent, paper-based composite materials were prepared through hydrothermal synthesis reaction from 3-aminophenol (nitrogen source) and hexamethylenetetramine. Nitrogen-doped mesoporous carbon materials(NMC-700) was obtained by carbonization, and actived NMC(ANMC-700) was prepared by KOH activation. At the same time,the carbon-700(C-700) samples were obtained by direct carbonization of industrial filter paper and used as the control sample. Three carbonized materials were characterized by SEM, TEM, XRD and XPS. The results showed that carbon microspheres with particle size of 0.6-7 μm were formed on the surface of ANMC-700. And the pore structure was consisted of randomly distributed, worm-like pores with specific surface area of 1 559 m2/g and pore volume of 0.80 cm3/g. The nitrogen atom was successfully doped into the carbon skeleton with the nitrogen content of 3.60% and the oxygen content of 13.65%. Electrochemical performance test results showed that the capacitance of the prepared carbon materials could reach 284 F/g at the current density of 1 A/g in 6 mol/L KOH electrolyte, and could retain 173 F/g at the current density of 20 A/g, exhibiting outstanding cycling stability(98.6% capacitance retention after 10 000 charge/discharge cycles).

Key words: biomass-based material, carbon electrode materials, mesoporous, activation, supercapacitors

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