Nucleation of graphene and its conversion to single-walled carbon nanotubes.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 25329750.
- Also identified by DOI 10.1021/nl501977b.
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Abstract
We use an environmental transmission electron microscope to record atomic-scale movies showing how carbon atoms assemble together on a catalyst nanoparticle to form a graphene sheet that progressively lifts-off to convert into a nanotube. Time-resolved observations combined with theoretical calculations confirm that some nanoparticle facets act like a vice-grip for graphene, offering anchoring sites, while other facets allow the graphene to lift-off, which is the essential step to convert into a nanotube.