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  • Facile electrochemical approach for the production of graphite oxide with tunable chemistry

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    TianPUB2438.pdf (785.6Kb)
    Author(s)
    Tian, Zhiming
    Yu, Pei
    Lowe, Sean E
    Pandolfo, Anthony G
    Gengenbach, Thomas R
    Nairn, Kate M
    Song, Jingchao
    Wang, Xin
    Zhong, Yu Lin
    Li, Dan
    Griffith University Author(s)
    Zhong, Yulin
    Lowe, Sean
    Year published
    2017
    Metadata
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    Abstract
    Reproducible and in-depth studies of the electrochemical graphite intercalation and oxidation processes were carried out with the use of an electrochemical Tee-cell setup. The electrochemical method allowed simpler and greater controllability over the level of oxidation/functionalization, relative to the commonly employed chemical oxidation approach (e.g. the modified Hummers method). Extensive characterization was carried out to understand the properties of the electrochemically-derived graphite oxide (EGrO), and it was found that the abundance of each functionality was highly dependent on the electrochemical reaction time ...
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    Reproducible and in-depth studies of the electrochemical graphite intercalation and oxidation processes were carried out with the use of an electrochemical Tee-cell setup. The electrochemical method allowed simpler and greater controllability over the level of oxidation/functionalization, relative to the commonly employed chemical oxidation approach (e.g. the modified Hummers method). Extensive characterization was carried out to understand the properties of the electrochemically-derived graphite oxide (EGrO), and it was found that the abundance of each functionality was highly dependent on the electrochemical reaction time or the concentration of the electrolyte (perchloric acid) employed. Notably, the amount of oxygen functional groups on EGrO could be as high as 30 wt%, but the degree of oxidation did not proceed beyond the generation of carbonyl species. The controllable oxidation level of the EGrO makes it an attractive precursor for many applications, such as electronics and nanocomposites.
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    Journal Title
    Carbon
    Volume
    112
    DOI
    https://doi.org/10.1016/j.carbon.2016.10.098
    Copyright Statement
    © 2017 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Functional Materials
    Physical Sciences
    Chemical Sciences
    Engineering
    Publication URI
    http://hdl.handle.net/10072/337779
    Collection
    • Journal articles

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