高等学校化学学报 ›› 2013, Vol. 34 ›› Issue (6): 1505.doi: 10.7503/cjcu20120823

• 物理化学 • 上一篇    下一篇

激光辐照对二茂铁掺杂单壁碳纳米管的影响

张京, 姚明光, 刘然, 崔雯, 路双臣, 刘冰冰   

  1. 吉林大学超硬材料国家重点实验室, 长春 130012
  • 收稿日期:2012-09-10 出版日期:2013-06-10 发布日期:2013-04-25
  • 通讯作者: 刘冰冰,女,博士,教授,博士生导师,主要从事纳米材料的高压研究.E-mail:liubb@jlu.edu.cn E-mail:liubb@jlu.edu.cn
  • 基金资助:

    国家"九七三"计划项目(批准号: 2011CB808200)和国家自然科学基金(批准号: 10979001, 51025206, 51032001, 21073071和11104105)资助.

Effects of Laser Irradiation on the Ferrocene-doped Single-wall Carbon Nanotubes

ZHANG Jing, YAO Ming-Guang, LIU Ran, CUI Wen, LU Shuang-Chen, LIU Bing-Bing   

  1. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
  • Received:2012-09-10 Online:2013-06-10 Published:2013-04-25

摘要:

以单壁碳纳米管和二茂铁为原料, 采用气相扩散法合成填充率较高的二茂铁掺杂单壁碳纳米管(Fc@SWNTs)的复合材料. 考察激光辐射对样品的影响, 结果表明, 当激光功率达到20 mW时, 对样品进行10 s辐照, 样品的拉曼光谱出现了稳定的新峰. 对比分析发现, 二茂铁在激光辐照后形成了碳化铁, 同时部分碳源转化成碳管形成了双层碳管. 表明碳化铁是二茂铁裂解向内层碳管转化的中间产物.

关键词: 二茂铁, 单壁碳纳米管, 双壁碳纳米管, 激光辐照

Abstract:

Utilizing single-wall carbon nanotubes and ferrocene as raw materials, we synthesized ferrocene-doped carbon nanotubes with a high filling rate through gas phase diffusion method. The obtained materials were confirmed by Raman and infrared spectra. By adjusting laser power on irradiation of samples, obvious changes in the Raman spectra were found, depending on the laser power. The results show that when the laser power is up to 20 mW with the irradiation time of 10 s, some stable new peaks in the Raman spectrum pappeare. In comparative analysis, it was noted that ferrocene formed the iron carbide after laser irradiation and then part of the carbon source transformed into carbon nanotubes and formed double-wall carbon nanotubes. It indicated that the iron carbide was the intermediate products during the conversion of pyrolysis of ferrocene to the inner layer, which was of crucial importance in the comprehension of preparation of double-wall carbon nanotubes by ferrocene-doped carbon nanotubes.

Key words: Ferrocene, Single-wall carbon nanotube, Double-wall carbon nanotube, Laser irradiation

中图分类号: 

TrendMD: