应用化学 ›› 1998, Vol. 0 ›› Issue (1): 92-94.

• 研究论文 • 上一篇    下一篇

稀土富勒烯生成的影响因素初探

孙大勇, 刘子阳, 徐文国, 郭兴华, 刘淑莹   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1997-06-16 修回日期:1997-09-15 出版日期:1998-02-10 发布日期:1998-02-10
  • 基金资助:
    国家自然科学基金

On the Factors Influencing the Formation of Rare-earth Metallofullerenes

Sun Dayong, Liu Ziyang, Xu Wenguo, Guo Xinghua, Liu Shuying   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1997-06-16 Revised:1997-09-15 Published:1998-02-10 Online:1998-02-10

摘要: 采用某些特殊的放电和提取方法,如反向放电和甲苯高温高压提取等可以有效地提高稀土富勒烯的生成效率[1,2],并已先后成功高效地合成了许多含稀土富勒烯[3].对其提纯、表征、衍生和应用也进行了研究[4-6].但对影响稀土富勒烯生成的因素研究较少.

关键词: 稀土, 富勒烯, 二次电弧法, 激光解吸飞行时间质谱法

Abstract: The effective preparation of rare-earth metallofullerenes is described.Graphiterod blended with rare earth oxide was used as starting material.The method consists of dou-ble are discharge, extraction with toluene in Soxhlet extractor and extraction with pyridine athigh temperature and pressure.The laser desorption time-of-flight mass spectrometry (LD-TOF MS) results showed that the more important factors influencing the formation of rareearth metallofullerenes appeared the conditions of their preparation and extraction and va-lence states of rare earth elements themselves.

Key words: rare earth, fullerene, double arc discharge, LD-TOF MS