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High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication

Exploiting the emulsification properties of low cost, environmentally safe Gum Arabic we demonstrate a high yield process to produce a few layer graphene with a low defect ratio, maintaining the pristine graphite structure. In addition, we demonstrate the need for and efficacy of an acid hydrolysis...

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Autores principales: Chabot, Victor, Kim, Brian, Sloper, Brent, Tzoganakis, Costas, Yu, Aiping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3594761/
https://www.ncbi.nlm.nih.gov/pubmed/23478744
http://dx.doi.org/10.1038/srep01378
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author Chabot, Victor
Kim, Brian
Sloper, Brent
Tzoganakis, Costas
Yu, Aiping
author_facet Chabot, Victor
Kim, Brian
Sloper, Brent
Tzoganakis, Costas
Yu, Aiping
author_sort Chabot, Victor
collection PubMed
description Exploiting the emulsification properties of low cost, environmentally safe Gum Arabic we demonstrate a high yield process to produce a few layer graphene with a low defect ratio, maintaining the pristine graphite structure. In addition, we demonstrate the need for and efficacy of an acid hydrolysis treatment to remove the polymer residues to produce 100% pure graphene. The scalable process gives yield of up to 5 wt% graphene based on 10 g starting graphite. The graphene product is compared with reduced graphene oxide produced through Hummer's method using UV-visible spectroscopy, SEM, TEM, and Raman spectroscopy. The two graphene materials show significant difference in these characterizations. Further, the film fabricated from this graphene exhibits 20 times higher electrical conductivity than that of the reduced graphene oxide. Sonication processing of graphite with environmentally approved biopolymers such as Gum Arabic opens up a scalable avenue for production of cheap graphene.
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spelling pubmed-35947612013-03-12 High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication Chabot, Victor Kim, Brian Sloper, Brent Tzoganakis, Costas Yu, Aiping Sci Rep Article Exploiting the emulsification properties of low cost, environmentally safe Gum Arabic we demonstrate a high yield process to produce a few layer graphene with a low defect ratio, maintaining the pristine graphite structure. In addition, we demonstrate the need for and efficacy of an acid hydrolysis treatment to remove the polymer residues to produce 100% pure graphene. The scalable process gives yield of up to 5 wt% graphene based on 10 g starting graphite. The graphene product is compared with reduced graphene oxide produced through Hummer's method using UV-visible spectroscopy, SEM, TEM, and Raman spectroscopy. The two graphene materials show significant difference in these characterizations. Further, the film fabricated from this graphene exhibits 20 times higher electrical conductivity than that of the reduced graphene oxide. Sonication processing of graphite with environmentally approved biopolymers such as Gum Arabic opens up a scalable avenue for production of cheap graphene. Nature Publishing Group 2013-03-12 /pmc/articles/PMC3594761/ /pubmed/23478744 http://dx.doi.org/10.1038/srep01378 Text en Copyright © 2013, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Chabot, Victor
Kim, Brian
Sloper, Brent
Tzoganakis, Costas
Yu, Aiping
High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title_full High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title_fullStr High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title_full_unstemmed High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title_short High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication
title_sort high yield production and purification of few layer graphene by gum arabic assisted physical sonication
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3594761/
https://www.ncbi.nlm.nih.gov/pubmed/23478744
http://dx.doi.org/10.1038/srep01378
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