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Advanced Materials

Synthesis of Aligned Carbon Nanotubes with Double Coaxial Structure of Nitrogen-Doped and Undoped Multiwalls



Aligned carbon nanotubes with a double coaxial structure of nitrogen-doped and undoped multiwalls are fabricated using an aluminum anodic oxide film as a template. A bundle of nanotubes is shown in the Figure. The new technique opens up a novel route for the synthesis of carbon nanotubes with coaxial heterojunctions by stacking layers with different heteroatom-doping.

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