Please use this identifier to cite or link to this item: https://doi.org/10.3390/nano11030560
Title: The Degree of Oxidation of Graphene Oxide
Authors: Carvalho, Alexandra 
Costa, Mariana CF 
Marangoni, Valeria S 
Ng, Pei Rou 
Thi, Le Hang Nguyen 
Castro Neto, Antonio H 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Multidisciplinary
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Chemistry
Science & Technology - Other Topics
Materials Science
Physics
graphene oxide
composition
structure
XPS
theory
experiment
Issue Date: 1-Mar-2021
Publisher: MDPI
Citation: Carvalho, Alexandra, Costa, Mariana CF, Marangoni, Valeria S, Ng, Pei Rou, Thi, Le Hang Nguyen, Castro Neto, Antonio H (2021-03-01). The Degree of Oxidation of Graphene Oxide. NANOMATERIALS 11 (3). ScholarBank@NUS Repository. https://doi.org/10.3390/nano11030560
Abstract: 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, ∆EC1s, can be described with high accuracy by ∆EC1s = 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.
Source Title: NANOMATERIALS
URI: https://scholarbank.nus.edu.sg/handle/10635/194296
ISSN: 20794991
DOI: 10.3390/nano11030560
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