Infrared (IR) spectroscopy is an important means to study the atomic structure of graphene oxide (GO). In this study, computational simulations of GO IR spectra are carried out. The widely accepted Lerf model gives most experimental IR characteristics correctly except the strong C=O stretching peak. This is a result of the absence of carbonyl groups in the interior part of GO. Defects or small oxidative debris should thus be introduced into GO models to accommodate more carbonyl groups. Unfortunately, even for those with defects or oxidative debris included, most previous models in the literature still fail to give a correct IR response. Actually, the C=O stretching frequency is found to be very sensitive to local chemical environment. Therefore, to introduce defects or oxidative debris into GO models, certain constrains apply.
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28 August 2013
Research Article|
August 23 2013
A computational infrared spectroscopic study of graphene oxide
Di Yin (殷迪);
Di Yin (殷迪)
1Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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Ning Lu (卢宁);
Ning Lu (卢宁)
2Department of Physics,
Anhui Normal University
, Wuhu, Anhui 241000, China
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Zhenyu Li (李震宇);
Zhenyu Li (李震宇)
a)
1Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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Jinlong Yang (杨金龙)
Jinlong Yang (杨金龙)
1Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, China
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a)
Author to whom correspondence should be addressed. Electronic mail: [email protected]
J. Chem. Phys. 139, 084704 (2013)
Article history
Received:
May 22 2013
Accepted:
August 01 2013
Citation
Di Yin, Ning Lu, Zhenyu Li, Jinlong Yang; A computational infrared spectroscopic study of graphene oxide. J. Chem. Phys. 28 August 2013; 139 (8): 084704. https://doi.org/10.1063/1.4818539
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