Catalyst consumption during growth of carbon nanofilaments on Pd seeds

Breton, Yannick; Fleurier, Romain; Salvetat, Jean-Paul; Thomann, Anne-Lise; Verstraete, Matthieu; Charlier, Jean-Christophe
November 2004
Applied Physics Letters;11/29/2004, Vol. 85 Issue 22, p5376
Academic Journal
Carbon nanofilaments are produced at 600 °C by catalytic decomposition of acetylene on palladium nanoparticles. We observe that nanofilament length is limited to a few hundreds of nm when the size of Pd germs is less than 10 nm, possibly due to the incorporation of Pd atoms during growth. We propose a growth model, supported by first-principles calculations which show that Pd atoms are stable when adsorbed on graphene and that a charge transfer occurs, modifying significantly the electronic properties.


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