高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (7): 1284.

• 研究快报 • 上一篇    下一篇

高效合成大分子富勒烯金属包合物

李楠1,2, 刘佳2, 施祖进2, 徐淑坤1, 顾镇南2   

  1. 1. 东北大学化学系, 沈阳 110004;
    2. 北京分子科学国家实验室, 稀土材料化学及应用国家重点实验室, 北京大学化学与分子工程学院, 北京 100871
  • 收稿日期:2009-03-18 出版日期:2009-07-10 发布日期:2009-07-10
  • 通讯作者: 施祖进, 男, 博士, 教授, 主要从事富勒烯金属包合物和纳米碳管研究. E-mail: zjshi@pku.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 504371004, 20771010)资助.

Synthesis of High Yield of Higher Endohedral Metallofullerenes

LI Nan1,2, LIU Jia2, SHI Zu-Jin2*, XU Shu-Kun1, GU Zhen-Nan2   

  1. 1. Department of Chemistry, Northeastern University, Shenyang 110004, China;
    2. Beijing National Laboratory for Molecular Sciences, the State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2009-03-18 Online:2009-07-10 Published:2009-07-10
  • Contact: SHI Zu-Jin. E-mail: zjshi@pku.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 504371004, 20771010)资助.

摘要:

采用直流电弧法, 以掺有金属合金和B4C粉末的光谱纯石墨棒作为阳极, 在He和NH3混合气氛中进行电弧放电, 首次高产率合成了一系列Gd2@C2n(94≤2n≤142)的大分子双金属富勒烯包合物. 实验证明, 异相物质作为热的载体并同时催化产生了大分子富勒烯金属包合物, 而NH3则抑制了C60和C70等其它富勒烯的生成.

关键词: 大分子富勒烯金属包合物; B4C; NH3; 合成; 电弧放电

Abstract:

By the DC arc-discharge of graphite rods doped with other substances in He and NH3 mixing gas, higher endohedral metallofullerenes(EMFs) were synthesized in a high yield. This lays the foundation for the separation, purification and further study of higher EMFs. The doped materials act as heat carriers and at the same time catalyze the growth of higher EMFs, whereas NH3 suppresses the formation of fullerenes such as C60 and C70, etc.

Key words: Higher endohedral metallofullerenes; B4C; NH3; Synthesis; Arc-discharge

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