Nitrogen Self-Doped Hierarchical Porous Carbon from Myriophyllum Aquaticum for Supercapacitor Electrode

文献类型： 外文期刊

第一作者： Shen, Feng

作者： Shen, Feng;Zhu, Linfeng;Qi, Xinhua

作者机构：

关键词： Biomass; Hierarchical porous carbon; KHCO3 activation; Nitrogen self-doping; Supercapacitor

期刊名称：CHEMISTRYSELECT （ 影响因子：2.109； 五年影响因子：2.054 ）

ISSN： 2365-6549

年卷期： 2018 年 3 卷 40 期

页码：

收录情况： SCI

摘要： Nitrogen self-doped carbon with hierarchical porous structure was fabricated via a simple but highly efficient method, where an aquatic plant myriophyllum aquaticum was used as both carbon and nitrogen precursors. The obtained carbons had 2.3 similar to 3% nitrogen content which was self-doped attributing to the high nitrogen content of myriophyllum aquaticum, thus eliminating the need of extra nitrogen addition. It discovered that KHCO3 was more efficient than traditional widely used CO2 to generate porous carbons (total surface areas 1765 vs 1003 m(2)/g). Hierarchical porous structure with macro-, meso- and micro-pores could be formed with the use of KHCO3 instead of CO2 (only micro- and meso-pores in the carbon). The myriophyllum aquaticum derived carbons were applied for the electrodes of supercapacitor, and the electrochemical performance of the KHCO3 activated carbons was superior to that of CO2 activated carbons (248 F/g vs 199 F/g). The excellent performance of myriophyllum aquaticum derived carbons via KHCO3 activation could be attributed to its unique surface functionalities and pore structures including nitrogen containing groups, high surface area and hierarchical structure. The outcomes of this work offer a low cost and scalable approach to prepare nitrogen self-doped porous carbons from discarded myriophyllum aquaticum.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序