Preparation of water-soluble graphene nanoplatelets and highly conductive films

Handle URI:
http://hdl.handle.net/10754/625344
Title:
Preparation of water-soluble graphene nanoplatelets and highly conductive films
Authors:
Xu, Xuezhu; Zhou, Jian ( 0000-0003-0144-5901 ) ; Jestin, Jacques; Colombo, Veronica; Lubineau, Gilles ( 0000-0002-7370-6093 )
Abstract:
This paper tackles the challenge of preparation stable, highly concentrated aqueous graphene dispersions. Despite tremendous recent interest, there has been limited success in developing a method that ensures the total dispersion of non-oxidized, defect-free graphene nanosheets in water. This study successfully demonstrates that few-layer graphene nanoplatelets (GNPs) can form highly concentrated aqueous colloidal solutions after they have been pretreated in a low-concentration inorganic sodium-hypochlorite and sodium-bromide salted aqueous solvent. This method retains the graphitic structure as evidenced by nuclear magnetic resonance spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. Vacuum-filtrated freestanding films demonstrate an electrical conductivity as high as 3000 S m−1. This dispersion technique is believed to be applicable not only for GNPs, but also for dispersing other types of graphitic materials, including fullerenes, single/double/multi-walled carbon nanotubes, graphene nanoribbons and etc.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Xu X, Zhou J, Jestin J, Colombo V, Lubineau G (2017) Preparation of water-soluble graphene nanoplatelets and highly conductive films. Carbon. Available: http://dx.doi.org/10.1016/j.carbon.2017.08.007.
Publisher:
Elsevier BV
Journal:
Carbon
Issue Date:
11-Aug-2017
DOI:
10.1016/j.carbon.2017.08.007
Type:
Article
ISSN:
0008-6223
Sponsors:
This research was supported by King Abdullah University of Science and Technology (KAUST). The authors are grateful to KAUST for its continuous support.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0008622317307923
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorXu, Xuezhuen
dc.contributor.authorZhou, Jianen
dc.contributor.authorJestin, Jacquesen
dc.contributor.authorColombo, Veronicaen
dc.contributor.authorLubineau, Gillesen
dc.date.accessioned2017-08-14T06:41:38Z-
dc.date.available2017-08-14T06:41:38Z-
dc.date.issued2017-08-11en
dc.identifier.citationXu X, Zhou J, Jestin J, Colombo V, Lubineau G (2017) Preparation of water-soluble graphene nanoplatelets and highly conductive films. Carbon. Available: http://dx.doi.org/10.1016/j.carbon.2017.08.007.en
dc.identifier.issn0008-6223en
dc.identifier.doi10.1016/j.carbon.2017.08.007en
dc.identifier.urihttp://hdl.handle.net/10754/625344-
dc.description.abstractThis paper tackles the challenge of preparation stable, highly concentrated aqueous graphene dispersions. Despite tremendous recent interest, there has been limited success in developing a method that ensures the total dispersion of non-oxidized, defect-free graphene nanosheets in water. This study successfully demonstrates that few-layer graphene nanoplatelets (GNPs) can form highly concentrated aqueous colloidal solutions after they have been pretreated in a low-concentration inorganic sodium-hypochlorite and sodium-bromide salted aqueous solvent. This method retains the graphitic structure as evidenced by nuclear magnetic resonance spectroscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. Vacuum-filtrated freestanding films demonstrate an electrical conductivity as high as 3000 S m−1. This dispersion technique is believed to be applicable not only for GNPs, but also for dispersing other types of graphitic materials, including fullerenes, single/double/multi-walled carbon nanotubes, graphene nanoribbons and etc.en
dc.description.sponsorshipThis research was supported by King Abdullah University of Science and Technology (KAUST). The authors are grateful to KAUST for its continuous support.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0008622317307923en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Carbon, 11 August 2017. DOI: 10.1016/j.carbon.2017.08.007. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectGraphene nanoplateletsen
dc.subjectWater-solubleen
dc.subjectSodium hypochloriteen
dc.subjectSodium bromideen
dc.subjectColloidsen
dc.subjectSurface and interactionen
dc.subjectElectrical double layeren
dc.subjectDLVO theoryen
dc.subjectFilmen
dc.subjectConductivityen
dc.titlePreparation of water-soluble graphene nanoplatelets and highly conductive filmsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalCarbonen
dc.eprint.versionPost-printen
dc.contributor.institutionLaboratoire Léon Brillouin (LLB), CEA Saclay, 91191, Gif-Sur-Yvette, Franceen
dc.contributor.institutionUniversity of Padua, Chemical and Materials Engineering, Padova, 35122, Italyen
kaust.authorXu, Xuezhuen
kaust.authorZhou, Jianen
kaust.authorColombo, Veronicaen
kaust.authorLubineau, Gillesen
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