Surface modification of high-surface area graphites by oxygen plasma treatments

Two types of high-surface area graphite having different specific surface areas (HSAG100 and HSAG300) were treated in a low-pressure microwave discharge oxygen plasma for 3 and 10 min. The physico-chemical properties at surface scale of the resulting materials were investigated by N2 physisorption,...

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Autores: Tamargo Martínez, Katia, Villar Rodil, Silvia, Martínez Alonso, Amelia, Díez Tascón, Juan Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/260269
Acceso en línea:http://hdl.handle.net/10261/260269
https://api.elsevier.com/content/abstract/scopus_id/85119589891
Access Level:acceso abierto
Palabra clave:Graphite
Oxygen plasma
Raman spectroscopy
TPD
XPS
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spelling Surface modification of high-surface area graphites by oxygen plasma treatmentsTamargo Martínez, KatiaVillar Rodil, SilviaMartínez Alonso, AmeliaDíez Tascón, Juan ManuelGraphiteOxygen plasmaRaman spectroscopyTPDXPSTwo types of high-surface area graphite having different specific surface areas (HSAG100 and HSAG300) were treated in a low-pressure microwave discharge oxygen plasma for 3 and 10 min. The physico-chemical properties at surface scale of the resulting materials were investigated by N2 physisorption, Raman spectroscopy, temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). For both materials, an increase of the degree of graphitic order was observed following the longer oxygen plasma exposure. Likewise, the 10-min plasma treatment gave place to surface-functionalized materials without compromising their thermal stability and aromatic network. Particularly, for HSAG100, the longer plasma exposure contributed to the development of an edge surface-functionalized graphite. In the case of as-received HSAG300, the presence of a mechanically damaged sub-surface ascribable to the milling process could be evidenced.The authors gratefully acknowledge financial support from the Spanish MEC –project CTQ2005-09105-C04-02–, from the Spanish MICINN – project EUI2008-00185– and from the CSIC–PIE – project 201880E048.Peer reviewedElsevierMinisterio de Ciencia, Innovación y Universidades (España)Villar Rodil, Silvia [0000-0002-5832-9971]Martínez Alonso, Amelia [0000-0002-7183-0859]Díez Tascón, Juan Manuel [0000-0001-9219-7266]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/260269https://api.elsevier.com/content/abstract/scopus_id/85119589891reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//EUI2008-00185Applied Surface Sciencehttps://doi.org/10.1016/j.apsusc.2021.151675Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2602692026-05-22T06:33:51Z
dc.title.none.fl_str_mv Surface modification of high-surface area graphites by oxygen plasma treatments
title Surface modification of high-surface area graphites by oxygen plasma treatments
spellingShingle Surface modification of high-surface area graphites by oxygen plasma treatments
Tamargo Martínez, Katia
Graphite
Oxygen plasma
Raman spectroscopy
TPD
XPS
title_short Surface modification of high-surface area graphites by oxygen plasma treatments
title_full Surface modification of high-surface area graphites by oxygen plasma treatments
title_fullStr Surface modification of high-surface area graphites by oxygen plasma treatments
title_full_unstemmed Surface modification of high-surface area graphites by oxygen plasma treatments
title_sort Surface modification of high-surface area graphites by oxygen plasma treatments
dc.creator.none.fl_str_mv Tamargo Martínez, Katia
Villar Rodil, Silvia
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author Tamargo Martínez, Katia
author_facet Tamargo Martínez, Katia
Villar Rodil, Silvia
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author_role author
author2 Villar Rodil, Silvia
Martínez Alonso, Amelia
Díez Tascón, Juan Manuel
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Villar Rodil, Silvia [0000-0002-5832-9971]
Martínez Alonso, Amelia [0000-0002-7183-0859]
Díez Tascón, Juan Manuel [0000-0001-9219-7266]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Graphite
Oxygen plasma
Raman spectroscopy
TPD
XPS
topic Graphite
Oxygen plasma
Raman spectroscopy
TPD
XPS
description Two types of high-surface area graphite having different specific surface areas (HSAG100 and HSAG300) were treated in a low-pressure microwave discharge oxygen plasma for 3 and 10 min. The physico-chemical properties at surface scale of the resulting materials were investigated by N2 physisorption, Raman spectroscopy, temperature-programmed desorption (TPD) and X-ray photoelectron spectroscopy (XPS). For both materials, an increase of the degree of graphitic order was observed following the longer oxygen plasma exposure. Likewise, the 10-min plasma treatment gave place to surface-functionalized materials without compromising their thermal stability and aromatic network. Particularly, for HSAG100, the longer plasma exposure contributed to the development of an edge surface-functionalized graphite. In the case of as-received HSAG300, the presence of a mechanically damaged sub-surface ascribable to the milling process could be evidenced.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/260269
https://api.elsevier.com/content/abstract/scopus_id/85119589891
url http://hdl.handle.net/10261/260269
https://api.elsevier.com/content/abstract/scopus_id/85119589891
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//EUI2008-00185
Applied Surface Science
https://doi.org/10.1016/j.apsusc.2021.151675
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
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