Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.carbon.2017.11.017 http://hdl.handle.net/11449/175469 |
Resumo: | The interaction of the noble atoms (Ar and Xe) with single-walled carbon nanotube (SWCNT) bundles are investigated using Raman spectroscopy in conjunction with computational modeling known as ReaxFF force field. SWCNT bundles were deposited on transmission electron microscopy (TEM) grids, and different noble gases were adsorbed onto the nanotubes at 20 K. Raman spectra acquired show significant frequency blueshifts of the radial breathing mode (RBM), G- and G′(or 2D)-bands due to gas solidification within the external groove sites (free spaces between the tubes in the bundle) and external surfaces of the bundles. This solid shell formed by the adsorbed gases contributes with a hydrostatic pressure to the system. We show from Raman measurements that the frequencies found after gas adsorption exhibit almost the same shifts indicating that the interactions between SWCNTs bundles and the gases (Ar or Xe) are nearly identical. |
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Repositório Institucional da UNESP |
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Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundlesAdsorptionRaman spectroscopySimulationThe interaction of the noble atoms (Ar and Xe) with single-walled carbon nanotube (SWCNT) bundles are investigated using Raman spectroscopy in conjunction with computational modeling known as ReaxFF force field. SWCNT bundles were deposited on transmission electron microscopy (TEM) grids, and different noble gases were adsorbed onto the nanotubes at 20 K. Raman spectra acquired show significant frequency blueshifts of the radial breathing mode (RBM), G- and G′(or 2D)-bands due to gas solidification within the external groove sites (free spaces between the tubes in the bundle) and external surfaces of the bundles. This solid shell formed by the adsorbed gases contributes with a hydrostatic pressure to the system. We show from Raman measurements that the frequencies found after gas adsorption exhibit almost the same shifts indicating that the interactions between SWCNTs bundles and the gases (Ar or Xe) are nearly identical.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)University of AlabamaDepartment of Physics The Pennsylvania State UniversityCenter for 2-Dimensional and Layered Materials The Pennsylvania State UniversityFaculdade de Ciências Exatas e Naturais Universidade Federal do Pará Campus Universitário de TocantinsDepartamento de Física IGCE Universidade Estadual Paulista UNESPDepartment of Mechanical and Nuclear Engineering The Pennsylvania State UniversityDepartment of Chemistry The Pennsylvania State UniversityDepartment of Physics and Astronomy The University of AlabamaCenter for Materials for Information Technology (MINT Center) The University of AlabamaDepartment of Materials Sciences and Engineering The Pennsylvania State UniversityInstitute of Carbon Science and Technology Shinshu University, 4-17-1 WakasatoDepartment of Physics Pontifical Catholic University of Rio de JaneiroDepartamento de Física IGCE Universidade Estadual Paulista UNESPFAPESP: 2014/15521-9CNPq: 234973/2014-5The Pennsylvania State UniversityUniversidade Federal do Pará (UFPA)Universidade Estadual Paulista (Unesp)The University of AlabamaShinshu UniversityPontifical Catholic University of Rio de JaneiroCunha, RenatoPaupitz, Ricardo [UNESP]Yoon, KichulVan Duin, Adri C.T.Elías, Ana LauraCarozo, VictorDasgupta, ArchiFujisawa, KazunoriLopez, Néstor PereaAraujo, Paulo T.Terrones, Mauricio2018-12-11T17:15:57Z2018-12-11T17:15:57Z2018-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article312-319application/pdfhttp://dx.doi.org/10.1016/j.carbon.2017.11.017Carbon, v. 127, p. 312-319.0008-6223http://hdl.handle.net/11449/17546910.1016/j.carbon.2017.11.0172-s2.0-850335534332-s2.0-85033553433.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCarbon2,226info:eu-repo/semantics/openAccess2023-10-27T06:07:00Zoai:repositorio.unesp.br:11449/175469Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:06:06.519871Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
title |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
spellingShingle |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles Cunha, Renato Adsorption Raman spectroscopy Simulation |
title_short |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
title_full |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
title_fullStr |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
title_full_unstemmed |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
title_sort |
Raman spectroscopy revealing noble gas adsorption on single-walled carbon nanotube bundles |
author |
Cunha, Renato |
author_facet |
Cunha, Renato Paupitz, Ricardo [UNESP] Yoon, Kichul Van Duin, Adri C.T. Elías, Ana Laura Carozo, Victor Dasgupta, Archi Fujisawa, Kazunori Lopez, Néstor Perea Araujo, Paulo T. Terrones, Mauricio |
author_role |
author |
author2 |
Paupitz, Ricardo [UNESP] Yoon, Kichul Van Duin, Adri C.T. Elías, Ana Laura Carozo, Victor Dasgupta, Archi Fujisawa, Kazunori Lopez, Néstor Perea Araujo, Paulo T. Terrones, Mauricio |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
The Pennsylvania State University Universidade Federal do Pará (UFPA) Universidade Estadual Paulista (Unesp) The University of Alabama Shinshu University Pontifical Catholic University of Rio de Janeiro |
dc.contributor.author.fl_str_mv |
Cunha, Renato Paupitz, Ricardo [UNESP] Yoon, Kichul Van Duin, Adri C.T. Elías, Ana Laura Carozo, Victor Dasgupta, Archi Fujisawa, Kazunori Lopez, Néstor Perea Araujo, Paulo T. Terrones, Mauricio |
dc.subject.por.fl_str_mv |
Adsorption Raman spectroscopy Simulation |
topic |
Adsorption Raman spectroscopy Simulation |
description |
The interaction of the noble atoms (Ar and Xe) with single-walled carbon nanotube (SWCNT) bundles are investigated using Raman spectroscopy in conjunction with computational modeling known as ReaxFF force field. SWCNT bundles were deposited on transmission electron microscopy (TEM) grids, and different noble gases were adsorbed onto the nanotubes at 20 K. Raman spectra acquired show significant frequency blueshifts of the radial breathing mode (RBM), G- and G′(or 2D)-bands due to gas solidification within the external groove sites (free spaces between the tubes in the bundle) and external surfaces of the bundles. This solid shell formed by the adsorbed gases contributes with a hydrostatic pressure to the system. We show from Raman measurements that the frequencies found after gas adsorption exhibit almost the same shifts indicating that the interactions between SWCNTs bundles and the gases (Ar or Xe) are nearly identical. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:15:57Z 2018-12-11T17:15:57Z 2018-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.carbon.2017.11.017 Carbon, v. 127, p. 312-319. 0008-6223 http://hdl.handle.net/11449/175469 10.1016/j.carbon.2017.11.017 2-s2.0-85033553433 2-s2.0-85033553433.pdf |
url |
http://dx.doi.org/10.1016/j.carbon.2017.11.017 http://hdl.handle.net/11449/175469 |
identifier_str_mv |
Carbon, v. 127, p. 312-319. 0008-6223 10.1016/j.carbon.2017.11.017 2-s2.0-85033553433 2-s2.0-85033553433.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carbon 2,226 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
312-319 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128607237701632 |