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Effect of oxygen configurations on the mechanical properties of graphene oxide
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Nasr Esfahani, Mohammad, Shahbeigi, Sepeedeh and Jabbari, Masoud (2022) Effect of oxygen configurations on the mechanical properties of graphene oxide. Journal of Applied Physics, 132 (17). 174302. doi:10.1063/5.0113425 ISSN 0021-8979.
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Official URL: https://doi.org/10.1063/5.0113425
Abstract
Understanding the mechanical properties of graphene oxide (GO) is the primary challenge for applications in materials engineering. The degree of oxidation and concentration of epoxide functional groups have been the main focus of previous mechanochemical studies. This work uses the reactive molecular dynamic simulations to reveal that the mechanical behavior of GO is strongly dependent on the epoxide configuration as well as its distribution. In this study, three main epoxide configurations—including top, bridge, and reside groups—decorate monolayer GO sheets with linear and random distributions. The distortion associated with epoxide groups creates diamond-like structures controlling the mechanical properties. Moreover, the orientation of those epoxide functional groups with applied loads has a dramatic impact on the mechanical response of GO. The effect of external electric fields on the mechanical properties of GO is another objective of this study. Findings exhibit that the electric field enhances the tensile toughness. This study demonstrates new aspects of GO as a functional material with potentials to control the mechanical properties through chemical compositions as well as external electric fields.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
SWORD Depositor: | Library Publications Router | ||||||
Library of Congress Subject Headings (LCSH): | Graphite composites -- Mechanical properties, Graphene -- Mechanical properties, Oxygen, Oxides | ||||||
Journal or Publication Title: | Journal of Applied Physics | ||||||
Publisher: | American Institute of Physics | ||||||
ISSN: | 0021-8979 | ||||||
Official Date: | 1 November 2022 | ||||||
Dates: |
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Volume: | 132 | ||||||
Number: | 17 | ||||||
Number of Pages: | 10 | ||||||
Article Number: | 174302 | ||||||
DOI: | 10.1063/5.0113425 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Date of first compliant deposit: | 4 January 2023 | ||||||
Date of first compliant Open Access: | 5 January 2023 |
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