DFT calculation for adatom adsorption on graphene sheet as a prototype of carbon nano tube functionalization

Details DFT calculation for adatom adsorption on graphene sheet as a prototype of carbon nano tube functionalization DFT calculation for adatom adsorption on graphene sheet as a prototype of carbon nano tube functionalization

2007-11-29

arxiv.org/abs/0711.4669v1

Physics

Condensed Matter

Materials Science

4 pages, 1 figure, 3 tables. To be published as Journal of Physics:Conference Series for IVC17/ICSS13

Scientific paper

10.1088/1742-6596/100/5/052087

DFT calculation of various atomic species on graphene sheet is investigated as prototypes for formation of nano-structures on carbon nanotube (CNT) wall. We investigate computationally adsorption energies and adsorption sites on graphene sheet for a lot of atomic species including transition metals, noble metals, nitrogen and oxygen, using the DFT calculation as a prototype for CNT. The suitable atomic species can be chosen as each application from those results. The calculated results show us that Mo and Ru are bounded strongly on graphene sheet with large diffusion barrier energy. On the other hand, some atomic species has large binding energies with small diffusion barrier energies

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