Formation of graphene nanoribbons in solution

Detalhes bibliográficos
Autor(a) principal: Paiva, M. C.
Data de Publicação: 2012
Outros Autores: Cunha, Eunice Paula Freitas, Proença, M. Fernanda R. P., Araújo, Rui Filipe, Costa, Florinda, Fernandes, António J., Ferro, Marta A.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/21874
Resumo: Recently, the formation of graphene by exfoliation of carbon nanotubes (CNT) has shown increasing interest. This process originates graphene nanoribbons (GNR) that are expected to present excellent electrical properties, depending on their width and on their edge shape [1]. Several methods for the unzipping of graphene from CNT were proposed along the past few years [2-6]. These methods often present some limitation, such as low yield of GNR, or extensively oxidized GNR without electrical conductivity. Recently, the formation of GNR was observed “in situ” by unzipping of carbon nanotubes under ultra-high vacuum scanning tunneling microscopy (UHV STM) [7]. The CNT under observation were functionalized by the 1,3-dipolar cycloaddition reaction [8]. This particular functionalization route seems to be responsible for the unzipping of the CNT under STM imaging conditions. The present work demonstrates the formation of GNR in solution by unzipping of functionalized CNT, in different solvents. The GNR thus formed were analyzed by UV-vis and Raman spectroscopy, and by transmission electron spectroscopy. GNR bundles were deposited from an ethanol solution and observed by TEM.
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spelling Formation of graphene nanoribbons in solutionGraphene nanoribbonsRecently, the formation of graphene by exfoliation of carbon nanotubes (CNT) has shown increasing interest. This process originates graphene nanoribbons (GNR) that are expected to present excellent electrical properties, depending on their width and on their edge shape [1]. Several methods for the unzipping of graphene from CNT were proposed along the past few years [2-6]. These methods often present some limitation, such as low yield of GNR, or extensively oxidized GNR without electrical conductivity. Recently, the formation of GNR was observed “in situ” by unzipping of carbon nanotubes under ultra-high vacuum scanning tunneling microscopy (UHV STM) [7]. The CNT under observation were functionalized by the 1,3-dipolar cycloaddition reaction [8]. This particular functionalization route seems to be responsible for the unzipping of the CNT under STM imaging conditions. The present work demonstrates the formation of GNR in solution by unzipping of functionalized CNT, in different solvents. The GNR thus formed were analyzed by UV-vis and Raman spectroscopy, and by transmission electron spectroscopy. GNR bundles were deposited from an ethanol solution and observed by TEM.Institute for Nanostructures, Nanomodelling and Nanofabrication (I3N)Graphene 2012Universidade do MinhoPaiva, M. C.Cunha, Eunice Paula FreitasProença, M. Fernanda R. P.Araújo, Rui FilipeCosta, FlorindaFernandes, António J.Ferro, Marta A.20122012-01-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/21874enginfo: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:RCAAP2024-05-11T06:22:27Zoai:repositorium.sdum.uminho.pt:1822/21874Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T06:22:27Repositório 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 Formation of graphene nanoribbons in solution
title Formation of graphene nanoribbons in solution
spellingShingle Formation of graphene nanoribbons in solution
Paiva, M. C.
Graphene nanoribbons
title_short Formation of graphene nanoribbons in solution
title_full Formation of graphene nanoribbons in solution
title_fullStr Formation of graphene nanoribbons in solution
title_full_unstemmed Formation of graphene nanoribbons in solution
title_sort Formation of graphene nanoribbons in solution
author Paiva, M. C.
author_facet Paiva, M. C.
Cunha, Eunice Paula Freitas
Proença, M. Fernanda R. P.
Araújo, Rui Filipe
Costa, Florinda
Fernandes, António J.
Ferro, Marta A.
author_role author
author2 Cunha, Eunice Paula Freitas
Proença, M. Fernanda R. P.
Araújo, Rui Filipe
Costa, Florinda
Fernandes, António J.
Ferro, Marta A.
author2_role 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
Proença, M. Fernanda R. P.
Araújo, Rui Filipe
Costa, Florinda
Fernandes, António J.
Ferro, Marta A.
dc.subject.por.fl_str_mv Graphene nanoribbons
topic Graphene nanoribbons
description Recently, the formation of graphene by exfoliation of carbon nanotubes (CNT) has shown increasing interest. This process originates graphene nanoribbons (GNR) that are expected to present excellent electrical properties, depending on their width and on their edge shape [1]. Several methods for the unzipping of graphene from CNT were proposed along the past few years [2-6]. These methods often present some limitation, such as low yield of GNR, or extensively oxidized GNR without electrical conductivity. Recently, the formation of GNR was observed “in situ” by unzipping of carbon nanotubes under ultra-high vacuum scanning tunneling microscopy (UHV STM) [7]. The CNT under observation were functionalized by the 1,3-dipolar cycloaddition reaction [8]. This particular functionalization route seems to be responsible for the unzipping of the CNT under STM imaging conditions. The present work demonstrates the formation of GNR in solution by unzipping of functionalized CNT, in different solvents. The GNR thus formed were analyzed by UV-vis and Raman spectroscopy, and by transmission electron spectroscopy. GNR bundles were deposited from an ethanol solution and observed by TEM.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
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url http://hdl.handle.net/1822/21874
dc.language.iso.fl_str_mv eng
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Graphene 2012
publisher.none.fl_str_mv Graphene 2012
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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