Graphene nanoribbons and nanoflakes from functionalized carbon precursors

Detalhes bibliográficos
Autor(a) principal: Paiva, M. C.
Data de Publicação: 2014
Outros Autores: Cunha, Eunice Paula Freitas, Rocha, Helena, Proença, M. Fernanda R. P., Alves, N. M., Mano, J. F., Melle-Franco, M., Deepak, Francis Leonard, González-Debs, Mariam, Lopes, P. E.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/30128
Resumo: The process of formation of graphene by exfoliation of carbon nanotubes (CNT) or graphite originates graphene nanoribbons (GNR) and graphene nanoflakes (GNF), respectively. These nanoparticles are expected to present interesting electronic properties, depending on their shape, size, and on their edge shape. Several methods for the unzipping of nanotubes were described in the literature [1]. The major limitations to the application of these methods are related to low yield, or to the formation of highly oxidized GNRs. The present work was motivated by the observation of the unzipping of functionalized CNT under ultra-high vacuum scanning tunneling microscopy (UHV STM) [2]. The CNTs under observation were functionalized by the 1,3-dipolar cycloaddition reaction [3], a potential route for the production of GNRs without oxidation. The formation of graphene flakes was observed when functionalized graphite was exfoliated under similar conditions as the CNT. The graphite was functionalized by the same procedure as the CNT.
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spelling Graphene nanoribbons and nanoflakes from functionalized carbon precursorsGraphene nanoribbonsGraphene nanoflakesCiências Naturais::Ciências QuímicasThe process of formation of graphene by exfoliation of carbon nanotubes (CNT) or graphite originates graphene nanoribbons (GNR) and graphene nanoflakes (GNF), respectively. These nanoparticles are expected to present interesting electronic properties, depending on their shape, size, and on their edge shape. Several methods for the unzipping of nanotubes were described in the literature [1]. The major limitations to the application of these methods are related to low yield, or to the formation of highly oxidized GNRs. The present work was motivated by the observation of the unzipping of functionalized CNT under ultra-high vacuum scanning tunneling microscopy (UHV STM) [2]. The CNTs under observation were functionalized by the 1,3-dipolar cycloaddition reaction [3], a potential route for the production of GNRs without oxidation. The formation of graphene flakes was observed when functionalized graphite was exfoliated under similar conditions as the CNT. The graphite was functionalized by the same procedure as the CNT.Fundação para a Ciência e a Tecnologia (FCT)Universidade do MinhoPaiva, M. C.Cunha, Eunice Paula FreitasRocha, HelenaProença, M. Fernanda R. P.Alves, N. M.Mano, J. F.Melle-Franco, M.Deepak, Francis LeonardGonzález-Debs, MariamLopes, P. E.20142014-01-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/30128enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T06:06:05Zoai:repositorium.sdum.uminho.pt:1822/30128Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T06:06:05Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Graphene nanoribbons and nanoflakes from functionalized carbon precursors
title Graphene nanoribbons and nanoflakes from functionalized carbon precursors
spellingShingle Graphene nanoribbons and nanoflakes from functionalized carbon precursors
Paiva, M. C.
Graphene nanoribbons
Graphene nanoflakes
Ciências Naturais::Ciências Químicas
title_short Graphene nanoribbons and nanoflakes from functionalized carbon precursors
title_full Graphene nanoribbons and nanoflakes from functionalized carbon precursors
title_fullStr Graphene nanoribbons and nanoflakes from functionalized carbon precursors
title_full_unstemmed Graphene nanoribbons and nanoflakes from functionalized carbon precursors
title_sort Graphene nanoribbons and nanoflakes from functionalized carbon precursors
author Paiva, M. C.
author_facet Paiva, M. C.
Cunha, Eunice Paula Freitas
Rocha, Helena
Proença, M. Fernanda R. P.
Alves, N. M.
Mano, J. F.
Melle-Franco, M.
Deepak, Francis Leonard
González-Debs, Mariam
Lopes, P. E.
author_role author
author2 Cunha, Eunice Paula Freitas
Rocha, Helena
Proença, M. Fernanda R. P.
Alves, N. M.
Mano, J. F.
Melle-Franco, M.
Deepak, Francis Leonard
González-Debs, Mariam
Lopes, P. E.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Paiva, M. C.
Cunha, Eunice Paula Freitas
Rocha, Helena
Proença, M. Fernanda R. P.
Alves, N. M.
Mano, J. F.
Melle-Franco, M.
Deepak, Francis Leonard
González-Debs, Mariam
Lopes, P. E.
dc.subject.por.fl_str_mv Graphene nanoribbons
Graphene nanoflakes
Ciências Naturais::Ciências Químicas
topic Graphene nanoribbons
Graphene nanoflakes
Ciências Naturais::Ciências Químicas
description The process of formation of graphene by exfoliation of carbon nanotubes (CNT) or graphite originates graphene nanoribbons (GNR) and graphene nanoflakes (GNF), respectively. These nanoparticles are expected to present interesting electronic properties, depending on their shape, size, and on their edge shape. Several methods for the unzipping of nanotubes were described in the literature [1]. The major limitations to the application of these methods are related to low yield, or to the formation of highly oxidized GNRs. The present work was motivated by the observation of the unzipping of functionalized CNT under ultra-high vacuum scanning tunneling microscopy (UHV STM) [2]. The CNTs under observation were functionalized by the 1,3-dipolar cycloaddition reaction [3], a potential route for the production of GNRs without oxidation. The formation of graphene flakes was observed when functionalized graphite was exfoliated under similar conditions as the CNT. The graphite was functionalized by the same procedure as the CNT.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
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dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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