中国物理B ›› 1999, Vol. 8 ›› Issue (7): 545-550.doi: 10.1088/1004-423X/8/7/011

• 8000 CROSSDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    

STRUCTURE AND MORPHOLOGY OF CARBON NANOTUBES GROWN ON ZEOLITE-SUPPORTED CATALYSTS BY CHEMICAL VAPOR DEPOSITION

孙连峰, 毛健民, 常保和, 潘正伟, 王刚, 周维亚   

  1. Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:1998-11-02 出版日期:1999-07-20 发布日期:1999-07-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 19774070).

STRUCTURE AND MORPHOLOGY OF CARBON NANOTUBES GROWN ON ZEOLITE-SUPPORTED CATALYSTS BY CHEMICAL VAPOR DEPOSITION

Sun Lian-feng (孙连峰), Mao Jian-min (毛健民), Chang Bao-he (常保和), Pan Zheng-wei (潘正伟), Wang Gang (王刚), Zhou Wei-ya (周维亚)   

  1. Institute of Physics, Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:1998-11-02 Online:1999-07-20 Published:1999-07-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19774070).

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摘要： The zeolite-supported catalysts were prepared in nickel and cobalt nitrate aqueous solutions by ion exchange method. After reducing these substrates by hydrogen, we grew carbon nanotubes on them by chemical vapor deposition under different conditions. The results reveal that nickel/zeolite, cobalt/zeolite and nickel+cobalt/zeolite have different optimal conditions. When nickel+cobalt/zeolite was used as the catalyst, we can get straight carbon nanotubes. The Raman spectrum of the straight nanotubes shows they have fewer defects. We propose a growth mechanism for the growth of these nanotubes.

Abstract: The zeolite-supported catalysts were prepared in nickel and cobalt nitrate aqueous solutions by ion exchange method. After reducing these substrates by hydrogen, we grew carbon nanotubes on them by chemical vapor deposition under different conditions. The results reveal that nickel/zeolite, cobalt/zeolite and nickel+cobalt/zeolite have different optimal conditions. When nickel+cobalt/zeolite was used as the catalyst, we can get straight carbon nanotubes. The Raman spectrum of the straight nanotubes shows they have fewer defects. We propose a growth mechanism for the growth of these nanotubes.

中图分类号:  (Catalytic methods)

  • 81.16.Hc
61.46.Fg (Nanotubes) 81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.)) 78.30.Na (Fullerenes and related materials) 78.67.Ch (Nanotubes) 81.16.Be (Chemical synthesis methods)