http://www.cnr.it/ontology/cnr/individuo/prodotto/ID190541
Mechanisms for Oxidative Unzipping and Cutting of Graphene (Articolo in rivista)
- Type
- Label
- Mechanisms for Oxidative Unzipping and Cutting of Graphene (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/nl202656c (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Tao Sun, Stefano Fabris (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://pubs.acs.org/doi/abs/10.1021/nl202656c (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR IOM Istituto Officina Materiali e SISSA Scuola Internazionale Superiore di Studi Avanzati (literal)
- Titolo
- Mechanisms for Oxidative Unzipping and Cutting of Graphene (literal)
- Abstract
- We identify mechanisms and surface precursors
for the nucleation and growth of extended defects on oxidized
graphene. Density functional theory calculations show that the
formation of surface structures capable to initiate the unzipping
and cracking of the oxidized C network is strongly influenced by
the constraint of the graphitic lattice on the surface functional
groups. Accounting for this effect on the preferential spatial
patterning of O adsorbates allows us to revise and extend the
current models of graphene oxidative unzipping and cutting. We
find that these processes are rate limited by O diffusion and driven by the local strain induced by the O adspecies. Adsorbate mobility is ultimately recognized as a key factor to control and to prevent the C-network breakdown during thermal processing of oxidized graphene. (literal)
- Autore CNR
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