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Vertically aligned carbon nanotubes grown on Au/Ni films and the role of Au in the grown process

Wang Bi-Ben Chen Shu-Xia Lü Xian-Yi Jin Zeng-Sun Gu Chang-Zhi Li Hai-Jun Li Jun-Jie

Vertically aligned carbon nanotubes grown on Au/Ni films and the role of Au in the grown process

Wang Bi-Ben, Chen Shu-Xia, Lü Xian-Yi, Jin Zeng-Sun, Gu Chang-Zhi, Li Hai-Jun, Li Jun-Jie
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  • Received Date:  18 November 2004
  • Accepted Date:  16 December 2004
  • Published Online:  07 July 2005

Vertically aligned carbon nanotubes grown on Au/Ni films and the role of Au in the grown process

  • 1. (1)北京工业大学应用数理学院,北京 100022; (2)吉林大学超硬材料国家重点实验室,长春 130012; (3)中国科学院物理研究所,北京凝聚态物理国家实验室,北京 100080

Abstract: The vertically aligned carbon nanotubes( CNTs) were synthesized on Au/Ni catalyst films by plasma enhanced hot filament chemical vapor deposition( PE-HFCVD) me thod at 96% concentration of hydrogen. The growing process of CNTs on Au/Ni film was discussed. The realization of the vertically aligned CNTs grown at high hyd rogen concentration can be attributed to the adoption of the Au/Ni catalyst film s. The element Au promoted the diffusion of the carbon and improved the activity of carbon in catalyst. By comparing with the use of only Ni as catalyst, the Au in Au/Ni catalyst film can increase the carbon absorption, so carbon could be e asily saturated in the catalyst and the vertically aligned CNTs were achieved at a high hydrogen concentration.

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