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

Abstract

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

CLC Number:

O643.35

TrendMD:

WU Guo-Tao, ZHU Guang-Ming, YOU Jin-Kua, LIN Zu-Geng . Production of Carbon Nanotubes With Different Shapes By Catalytic Pyrolysis of Methane[J]. Chem. J. Chinese Universities, 2002, 23(1): 98.

References

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