| 摘要 |
Disclosed herein is a method of doping nanosized nickel (Ni) on the surface of carbon nanotubes to improve the hydrogen storage capacity of the carbon nanotubes. The method comprises: sonicating carbon nanotube samples produced by vapor deposition, in sulfuric acid solution, followed by filtration to remove a metal catalyst from the carbon nanotube samples; and doping the carbon nanotube samples in liquid phase solution, followed by drying and reduction, so as to dope nanosized nickel on the surface of the carbon nanotubes.
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