The Degree of Oxidation of Graphene Oxide

We show that the degree of oxidation of graphene oxide (GO) can be obtained by using a combination of state-of-the-art ab initio computational modeling and X-ray photoemission spectroscopy (XPS). We show that the shift of the XPS C1s peak relative to pristine graphene, [Formula: see text] , can be d...

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Detalles Bibliográficos
Autores principales: Carvalho, Alexandra, Costa, Mariana C. F., Marangoni, Valeria S., Ng, Pei Rou, Nguyen, Thi Le Hang, Castro Neto, Antonio H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7995973/
https://www.ncbi.nlm.nih.gov/pubmed/33668189
http://dx.doi.org/10.3390/nano11030560
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author Carvalho, Alexandra
Costa, Mariana C. F.
Marangoni, Valeria S.
Ng, Pei Rou
Nguyen, Thi Le Hang
Castro Neto, Antonio H.
author_facet Carvalho, Alexandra
Costa, Mariana C. F.
Marangoni, Valeria S.
Ng, Pei Rou
Nguyen, Thi Le Hang
Castro Neto, Antonio H.
author_sort Carvalho, Alexandra
collection PubMed
description We show that the degree of oxidation of graphene oxide (GO) can be obtained by using a combination of state-of-the-art ab initio computational modeling and X-ray photoemission spectroscopy (XPS). We show that the shift of the XPS C1s peak relative to pristine graphene, [Formula: see text] , can be described with high accuracy by [Formula: see text] , where [Formula: see text] is the oxygen concentration, [Formula: see text] eV, [Formula: see text] , and [Formula: see text] eV. Our results demonstrate a precise determination of the oxygen content of GO samples.
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spelling pubmed-79959732021-03-27 The Degree of Oxidation of Graphene Oxide Carvalho, Alexandra Costa, Mariana C. F. Marangoni, Valeria S. Ng, Pei Rou Nguyen, Thi Le Hang Castro Neto, Antonio H. Nanomaterials (Basel) Article We show that the degree of oxidation of graphene oxide (GO) can be obtained by using a combination of state-of-the-art ab initio computational modeling and X-ray photoemission spectroscopy (XPS). We show that the shift of the XPS C1s peak relative to pristine graphene, [Formula: see text] , can be described with high accuracy by [Formula: see text] , where [Formula: see text] is the oxygen concentration, [Formula: see text] eV, [Formula: see text] , and [Formula: see text] eV. Our results demonstrate a precise determination of the oxygen content of GO samples. MDPI 2021-02-24 /pmc/articles/PMC7995973/ /pubmed/33668189 http://dx.doi.org/10.3390/nano11030560 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Carvalho, Alexandra
Costa, Mariana C. F.
Marangoni, Valeria S.
Ng, Pei Rou
Nguyen, Thi Le Hang
Castro Neto, Antonio H.
The Degree of Oxidation of Graphene Oxide
title The Degree of Oxidation of Graphene Oxide
title_full The Degree of Oxidation of Graphene Oxide
title_fullStr The Degree of Oxidation of Graphene Oxide
title_full_unstemmed The Degree of Oxidation of Graphene Oxide
title_short The Degree of Oxidation of Graphene Oxide
title_sort degree of oxidation of graphene oxide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7995973/
https://www.ncbi.nlm.nih.gov/pubmed/33668189
http://dx.doi.org/10.3390/nano11030560
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