Nano Archive

Multifunctional carbon nanotubes with nanoparticles embedded in their walls

Mattia, D and Korneva, G and Sabur, A and Friedman, G and Gogotsi, Y (2007) Multifunctional carbon nanotubes with nanoparticles embedded in their walls. NANOTECHNOLOGY, 18 (15).

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Controlled amounts of nanoparticles ranging in size and composition were embedded in the walls of carbon nanotubes during a template-assisted chemical vapour deposition (CVD) process. The encapsulation of gold nanoparticles enabled surface enhanced Raman spectroscopy (SERS) detection of glycine inside the cavity of the nanotubes. Iron oxide particles are partially reduced to metallic iron during the CVD process giving the nanotubes ferromagnetic behaviour. At high nanoparticle concentrations, particle agglomerates can form. These agglomerates or larger particles, which are only partially embedded in the walls of the nanotubes, are covered by additional carbon layers inside the hollow cavity of the tube producing hillocks inside the nanotubes, with sizes comparable to the bore of the tube.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
ID Code:3275
Deposited By:Farnush Anwar
Deposited On:15 Jan 2009 11:17
Last Modified:02 Mar 2009 10:52

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