The Degree of Oxidation of Graphene Oxide.
XPS
composition
experiment
graphene oxide
structure
theory
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
24 Feb 2021
24 Feb 2021
Historique:
received:
12
01
2021
revised:
19
02
2021
accepted:
19
02
2021
entrez:
6
3
2021
pubmed:
7
3
2021
medline:
7
3
2021
Statut:
epublish
Résumé
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, ΔEC1s, can be described with high accuracy by ΔEC1s=A(cO-cl)2+E0, where c0 is the oxygen concentration, A=52.3 eV, cl=0.122, and E0=1.22 eV. Our results demonstrate a precise determination of the oxygen content of GO samples.
Identifiants
pubmed: 33668189
pii: nano11030560
doi: 10.3390/nano11030560
pmc: PMC7995973
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : National Research Foundation Singapore
ID : R-144-000-295-281
Organisme : National Research Foundation
ID : R-144-000-295-281
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