Abstract
Highly ordered freestanding multiwalled carbon nanotube arrays on gold substrate have been fabricated by using hexagonal close-packed nanochannel alumina templates with a cobalt–nickel catalyst. High-resolution transmission electron microscopy images and electron diffraction pattern show that the carbon nanotubes are well graphitized. Raman spectrum shows its weak peak at 1354 cm −1 (D band) and strong peak at 1578 cm −1 (G band). The well-graphitized freestanding carbon nanotubes arrays will have potential applications in lithium-ion battery and other fields.
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