• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ChemNanoMat >Facile One-Pot Synthesis of Activated Porous Biocarbons with a High Nitrogen Content for CO2 Capture
【24h】

Facile One-Pot Synthesis of Activated Porous Biocarbons with a High Nitrogen Content for CO2 Capture

机译：具有高氮含量的活化多孔生物碳的容量一罐合成CO 2捕获

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A facile one-pot synthesis of porous activated biocarbons with a high nitrogen content (NEPBs) through a simple in-situ self-assembly of Arundo donax and urea combined with a solid state activation using KOH/ZnCl2 is presented. NEPBs show dominant microporous character and possess a high nitrogen content in the form of pyridinic-N and pyrrolic-N and a high specific surface area. The nitrogen content of NEPBs was determined to be in the range of 7.74-19.15%, which was much higher than that of biocarbon derived from non-activated biomass (1.12%). We also demonstrate that the nitrogen content of NEPBs can easily be tuned by adjusting the impregnation ratios of urea and KOH/ZnCl2. The NEPBs show impressively high CO2 adsorption capacities of 4.8 mmolg(-1) at 0 degrees C/1 bar and 14.1 mmolg(-1) at 0 degrees C/30bar. A high value of the isosteric heat of adsorption is observed (39 kJmol(-1)), confirming the role of nitrogen to enhance the CO2 adsorption capacities through a strong adsorbent-adsorbate interaction. It is anticipated that the strategy presented here could be extended for the generation of a series of other biomass-based porous carbon materials with much higher nitrogen contents and controlled textural properties for applications including energy storage and conversion and carbon capture.
机译：通过使用KOH / ZnCl 2的Arundo Donax和Urea的简单原位自组装，通过简单的原位自组装，通过简单的原位自组装，与使用KOH / ZnCl2结合固态活化的高氮含量（Nepbs）的容纳活性生物羰。 Nepbs显示显性的微孔特征，具有吡啶-N和吡咯的形式的高氮含量和高比表面积。确定Nepbs的氮含量为7.74-19.15％，高于衍生自未激活生物量（1.12％）的生物碳酸盐的范围。我们还证明，通过调节尿素和KOH / ZnCl2的浸渍比可以容易地调整Nepbs的氮含量。 Nepbs在0摄氏度为0摄氏度和14.1mmolg（-1）时，令人印象深刻的4.8mmolg（-1）的高CO 2吸附容量。观察到吸附的旁边热量的高值（39kJmol（-1）），证实氮的作用通过强吸附吸附的相互作用来增强CO 2吸附能力。预计此处呈现的策略可以扩展到产生一系列其他基于生物质的多孔碳材料，其氮含量高，氮含量和控制纹理性质，包括能量储存和转化和碳捕获。

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