|
|||||
|
|
| 氮掺杂碳纳米管的制备及其电化学性能 | |
| 引用本文： | 李莉香,刘永长,耿新,安百刚. 氮掺杂碳纳米管的制备及其电化学性能[J]. 物理化学学报, 2011, 27(2): 443-448. DOI: 10.3866/PKU.WHXB20110225 |
| 作者姓名： | 李莉香 刘永长 耿新 安百刚 |
| 作者单位： | Institute for Materials Electrochemistry Process Research, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China |
| 基金项目： | 辽宁省自然科学基金(20061078); 辽宁省教育厅基金(L2010197)资助项目~~ |
| 摘 要： | 采用弱反应性含氮有机物水合肼、二乙烯三胺对碳纳米管进行氮掺杂处理. 结合X射线光电子谱(XPS)分析和扫描电镜(SEM)观察, 发现两种含氮有机物处理均可使碳纳米管表面成功连接上含氮基团, 并保持了碳纳米管的本征形貌和结构. 水合肼处理的碳纳米管的氮含量(碳/氮原子比为95/2)明显高于二乙烯三胺处理的碳纳米管(碳/氮原子比为96/0.5). 氮掺杂后碳纳米管在水溶液中分散性明显改善, 且分散性随着氮含量增加进一步增强, 因此水合肼处理的碳纳米管分散性明显优于二乙烯三胺处理的碳纳米管. 作为电化学电容器电极材料, 碳纳米管含氮官能团贡献了赝电容, 但其循环性仍需进一步改进. 氮掺杂碳纳米管较好的亲水性, 改善了电解液的浸润, 循环后氮掺杂碳纳米管电极的比容量仍略高于纯碳纳米管电极的比容量. |
| 关 键 词： | 碳纳米管 氮摻杂 水合肼 二乙烯三胺 电化学 |
| 收稿时间： | 2010-09-03 |
| 修稿时间： | 2011-01-05 |
Synthesis and Electrochemical Performance of Nitrogen-Doped Carbon Nanotubes |
|
| LI Li-Xiang,LIU Yong-Chang,GENG Xin,AN Bai-Gang. Synthesis and Electrochemical Performance of Nitrogen-Doped Carbon Nanotubes[J]. Acta Physico-Chimica Sinica, 2011, 27(2): 443-448. DOI: 10.3866/PKU.WHXB20110225 | |
| Authors: | LI Li-Xiang LIU Yong-Chang GENG Xin AN Bai-Gang |
| Affiliation: | Institute for Materials Electrochemistry Process Research, School of Chemical Engineering, University of Science and Technology Liaoning, Anshan 114051, China |
| Abstract: | We treated carbon nanotubes(CNTs) with hydrazine hydrate and diethylenetriamine separately and characterized them using scanning electron spectroscopy(SEM) and X-ray photoelectron spectroscopy(XPS).SEM indicated that the treated CNTs retained the length/diameter ratio of the pure CNTs and XPS showed that nitrogen was doped in the CNTs.XPS analysis also indicated that the carbon/nitrogen atomic ratio of the CNTs treated by hydrazine hydrate was 95/2,which was much higher than the 96/0.5 for the CNTs treated ... |
| Keywords: | Carbon nanotubes N-doping Hydrazine hydrate Diethylenetriamine Electrochemistry |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《物理化学学报》浏览原始摘要信息 | |
| 点击此处可从《物理化学学报》下载全文 | |