• 主题
高级搜索  >
历史搜索 清空历史
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
【24h】

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

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

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 material via direct carbonization without any additional activation agent or template. It was believed that the in situ produced 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 °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通过直接碳化制备氮气掺杂的多孔碳材料，无任何额外的活化剂或模板。据信，原位在前体合成过程中产生的NaCl作用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。发现碳材料具有高达230°F G〜（α1）的高级重量电容（0.1Ag〜（α1）），在700℃的碳化温度下，良好的能量密度为7.99 W H kg 〜（？1）在功率密度为25W kg〜（α1），在20次循环后的90.3％的优异循环稳定性。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。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号