Graphene nano-ribbon formation through hydrogen-induced unzipping of carbon nanotubes | Zendy

Leonidas Tsetseris | Zendy; S. T. Pantelides | Zendy

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Graphene nano-ribbon formation through hydrogen-induced unzipping of carbon nanotubes

Author(s) -

Leonidas Tsetseris,

S. T. Pantelides

Publication year - 2011

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3648105

Subject(s) - carbon nanotube , graphene , ribbon , graphene nanoribbons , materials science , chirality (physics) , nanotechnology , hydrogen , carbon fibers , nano , impurity , mechanical properties of carbon nanotubes , chemical engineering , composite material , chemistry , composite number , nanotube , organic chemistry , chiral symmetry breaking , physics , quantum mechanics , quark , nambu–jona lasinio model , engineering

Longitudinal unzipping of carbon nanotubes (CNTs) can create graphene nano-ribbons (GNRs) with predetermined width. Experiments have used thus far an oxidative-induced unzipping approach that produces residual oxygen impurities. Here, we employ results of first-principles calculations to demonstrate an alternative scenario of GNR formation. We show that hydrogen loading at open CNT ends leads to successive C-C bond breaking and opening of CNTs to GNRs with edge morphologies that depend on CNT chirality. We also show that re-zipping of partially open CNTs can lead to new type of materials, for example, CNTs with lines of oxygen inter-carbon bridges. (C) 2011 American Institute of Physics. [doi:10.1063/1.3648105

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