Open AccessVertically aligned carbon nanotubes grown on Au/Ni films and the role of Au in the grown process
Author(s) -
Shuxia Chen,
Changzhi Gu,
Biben Wang,
Haijun Li,
Junjie Li,
Xin Lu,
Zengsun Jin
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.3297
Subject(s) - materials science , catalysis , carbon nanotube , chemical vapor deposition , chemical engineering , carbon fibers , hydrogen , carbon nanotube supported catalyst , diffusion , nickel , nanotechnology , composite material , metallurgy , carbon nanofiber , organic chemistry , composite number , chemistry , engineering , physics , thermodynamics
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.