Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites

Commercial multi-walled carbon nanotubes (CNT) were functionalized by oxidation with HNO(3), to introduce oxygen-containing surface groups, and by thermal treatments at different temperatures for their selective removal. The obtained samples were characterized by adsorption of N(2 )at -196°C, temper...

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Detalles Bibliográficos
Autores principales: Carabineiro, Sónia AC, Pereira, Manuel FR, Pereira, João N, Caparros, Cristina, Sencadas, Vitor, Lanceros-Mendez, Senentxu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211369/
https://www.ncbi.nlm.nih.gov/pubmed/21711832
http://dx.doi.org/10.1186/1556-276X-6-302
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author Carabineiro, Sónia AC
Pereira, Manuel FR
Pereira, João N
Caparros, Cristina
Sencadas, Vitor
Lanceros-Mendez, Senentxu
author_facet Carabineiro, Sónia AC
Pereira, Manuel FR
Pereira, João N
Caparros, Cristina
Sencadas, Vitor
Lanceros-Mendez, Senentxu
author_sort Carabineiro, Sónia AC
collection PubMed
description Commercial multi-walled carbon nanotubes (CNT) were functionalized by oxidation with HNO(3), to introduce oxygen-containing surface groups, and by thermal treatments at different temperatures for their selective removal. The obtained samples were characterized by adsorption of N(2 )at -196°C, temperature-programmed desorption and determination of pH at the point of zero charge. CNT/poly(vinylidene fluoride) composites were prepared using the above CNT samples, with different filler fractions up to 1 wt%. It was found that oxidation reduced composite conductivity for a given concentration, shifted the percolation threshold to higher concentrations, and had no significant effect in the dielectric response.
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spelling pubmed-32113692011-11-09 Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites Carabineiro, Sónia AC Pereira, Manuel FR Pereira, João N Caparros, Cristina Sencadas, Vitor Lanceros-Mendez, Senentxu Nanoscale Res Lett Nano Express Commercial multi-walled carbon nanotubes (CNT) were functionalized by oxidation with HNO(3), to introduce oxygen-containing surface groups, and by thermal treatments at different temperatures for their selective removal. The obtained samples were characterized by adsorption of N(2 )at -196°C, temperature-programmed desorption and determination of pH at the point of zero charge. CNT/poly(vinylidene fluoride) composites were prepared using the above CNT samples, with different filler fractions up to 1 wt%. It was found that oxidation reduced composite conductivity for a given concentration, shifted the percolation threshold to higher concentrations, and had no significant effect in the dielectric response. Springer 2011-04-07 /pmc/articles/PMC3211369/ /pubmed/21711832 http://dx.doi.org/10.1186/1556-276X-6-302 Text en Copyright ©2011 Carabineiro et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Carabineiro, Sónia AC
Pereira, Manuel FR
Pereira, João N
Caparros, Cristina
Sencadas, Vitor
Lanceros-Mendez, Senentxu
Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title_full Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title_fullStr Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title_full_unstemmed Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title_short Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
title_sort effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211369/
https://www.ncbi.nlm.nih.gov/pubmed/21711832
http://dx.doi.org/10.1186/1556-276X-6-302
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