高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (1): 98.

• 研究论文 • 上一篇    下一篇

催化裂解CH4制备不同形貌的碳纳米管

吴国涛, 朱光明, 尤金跨, 林祖赓   

  1. 厦门大学化学系, 固体表面物理化学国家重点实验室, 厦门 361005
  • 收稿日期:2000-12-07 出版日期:2002-01-24 发布日期:2002-01-24
  • 通讯作者: 吴国涛(1971年出生),男,博士,从事碳纳米材料及锂离子电池应用研究.
  • 基金资助:

    福建省自然科学基金(批准号:E0010002)资助

Production of Carbon Nanotubes With Different Shapes By Catalytic Pyrolysis of Methane

WU Guo-Tao, ZHU Guang-Ming, YOU Jin-Kua, LIN Zu-Geng   

  1. Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen Univeristy, Xiamen 361005, China
  • Received:2000-12-07 Online:2002-01-24 Published:2002-01-24

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摘要： 通过甲烷于较低温度(500～700℃)下在镍催化剂上催化裂解制备了各种形貌的碳纳米管.透射电镜测试结果表明,碳纳米管的外径和内径明显地受催化剂的大小和形貌的影响.本文考察了催化剂前驱体的种类、反应温度和原料气流速对镍催化剂和碳纳米管形貌的影响.

关键词: 碳纳米管, Ni催化剂, 催化裂解, 甲烷

Abstract: In the present work, different-shaped carbon nanotubes produced by catalytic pyrolysis of methane over Ni-catalysts at low temperature (500-700 ℃) were observed by TEM. It was found that the outer and inner diameters of carbon nanotubes and the size and morphology of Ni- catalysts are mainly determined, which was strongly affected by the kind of catalyst precursors and the reaction temperature. The length of carbon nanotubes became short when the reaction temperature was decreased or the flow rate of methane was improved.

Key words: Carbon nanotubes, Ni-catalysts, Catalytic pyrolysis, CH4

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