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首页> 外文期刊>RSC Advances >Self-template/activation nitrogen-doped porous carbon materials derived from lignosulfonate-based ionic liquids for high performance supercapacitors
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Self-template/activation nitrogen-doped porous carbon materials derived from lignosulfonate-based ionic liquids for high performance supercapacitors

机译：用于高性能超级电容器的衍生自拉染料基离子液的自来组织/活化氮掺杂多孔碳材料

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摘要

A simple ion exchange reaction of sodium lignosulfonate (SLS) and 1-allyl-3-methyl imidazolium chloride ([Amim]Cl) produced a new polymeric ionic liquid [Amim]LS and NaCl, and the mixture was successfully used as a precursor to prepare a nitrogen-doped porous carbon materialviadirect carbonization without any additional activation agent or template. It was believed that thein situproduced NaCl during the precursor synthesis process acted as the self-template and in self-activation. The introduction of imidazolium ionic liquid into the precursor raised the nitrogen content of the obtained carbon material up to 4.68% for a high yield of [Amim]LS-700 carbon material up to 34.6%. The effect of carbonization temperature on the structures and electrochemical properties of the prepared carbon were also studied systematically. It was found that the carbon material exhibits a superior gravimetric capacitance up to 230 F g(-1)(0.1 A g(-1)) at the carbonization temperature of 700 degrees C, a good energy density of 7.99 W h kg(-1)at the power density of 25 W Kg(-1), and an excellent cycling stability of 90.3% after 20 000 cycles. This work provides a new path for the value-added utilization of biomass coupled with the field of electrochemical energy storage.
机译：木质素磺酸钠（SLS）和1-烯丙基-3-甲基咪唑鎓氯化钠（[Amim] Cl）的简单离子交换反应制备了一种新的聚合物离子液体[Amim] Ls和NaCl，并将混合物成功用作前体制备氮气掺杂多孔碳材料证据碳化，无任何额外的活化剂或模板。据信，在前体合成过程中，在前体合成过程中出现的NaCl作为自我模板和自激活。将咪唑鎓离子液体引入前体，将所得碳材料的氮含量提高至4.68％，高产率高出高达34.6％的液体。还系统地研究了碳化温度对制备碳结构和电化学性质的影响。发现碳材料在700℃的碳化温度下表现出高达230°F G（-1）（0.1Ag（-1））的优异重量电容，良好的能量密度为7.99WH kg（ - 1）在20 000次循环后，在25W kg（-1）的功率密度，优异的循环稳定性为90.3％。这项工作为生物质的增值利用率提供了一种新的路径，其与电化学能量存储领域相结合。

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  • 来源
    《RSC Advances》 |2020年第60期|共10页
  • 作者

    Xu Qinqin; Wang Xia; Cheng Jian; Zhang Lin; He Feng; Xie Haibo;

  • 作者单位

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

    Guizhou Univ Coll Mat &

    Met Dept New Energy Mat &

    Engn Guiyang 550025 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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