Publicação

Self-assembled functionalized graphene nanoribbons from carbon nanotubes

Ver documento

Detalhes bibliográficos
Resumo:Graphene nanoribbons (GNR) weregenerated in ethanol solu-tion by unzipping pyrrolidine-functionalized carbon nanotubesunder mild conditions. Evaporation of the solvent resulted inregularfew-layer stacks of graphene nanoribbons observed bytransmission electron microscopy (TEM) and X-ray diffraction.The experimental interlayer distance (0.49–0.56 nm) was con-firmed by computer modelling (0.51 nm). Computer modellingshowedthat the large interlayer spacing (compared withgraphite) is due to the presence of the functional groups anddepends on their concentration.Stacked nanoribbons wereobserved to redissolve upon solvent addition. This preparationmethodcould allow the fine-tuning of the interlayer distancesby controlling the number and/orthe nature of the chemicalgroups in between the graphene layers.
Autores principais:Cunha, Eunice Paula Freitas
Outros Autores:Proença, M. Fernanda R. P.; Costa, Florinda; Fernandes, António J.; Ferro, Marta A. C.; Lopes, P. E.; González-Debs, Mariam; Melle-Franco, M.; Deepak, Francis Leonard; Paiva, M. C.
Assunto:graphene molecular modelling nanostructures self-assemble
Ano:2015
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

Registos relacionados

Registos relacionados