Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Açık Bilim Politikası
Açık Bilim Politikası
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Initial Stages of Oxidation on Graphitic Surfaces: Photoemission Study and Density Functional Theory Calculations
Date
2009-05-28
Author
Barinov, Alexei
Malcıoğlu, Osman Barış
Fabris, Stefano
Sun, Tao
Gregoratti, Luca
Dalmiglio, Matteo
Kiskinova, Maya
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
3
views
0
downloads
The initial oxidation stages of perfect and defective graphitic surfaces exposed to atomic oxygen have been studied with a combined high-resolution photoemission spectroscopy (HR-PES) and density functional theory (DFT) computational approach. The resulting oxygen-containing surface functional groups are identified by analyzing the multicornponent C 1s and O 1s core level spectra that are then interpreted on the basis of DFF calculations. In the initial oxidation stage, epoxy groups are formed on perfect graphene, whereas the preferential adsorption of the O atoms on the vacancies of the defective surfaces results in structures containing pairs of oxygen atoms in ether and carbonyl (semiquinone) coil figurations. The formation of these functional groups is preceded by metastable structures consisting of single O atoms occupying single C vacancies.
Subject Keywords
Carbon nanotubes
,
Graphene
,
Oxygen
,
Layers
URI
https://hdl.handle.net/11511/34295
Journal
JOURNAL OF PHYSICAL CHEMISTRY C
DOI
https://doi.org/10.1021/jp902051d
Collections
Department of Physics, Article