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

Zhiming Tian, Pei Yu, Sean E. Lowe, Tony G. Pandolfo, Thomas R. Gengenbach, Kate. M. Nairn, Jingchao Song, Xin Wang, Yu Lin Zhong, Dan Li

Research output: Contribution to journalArticleResearchpeer-review

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 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.

Original languageEnglish
Pages (from-to)185-191
Number of pages7
JournalCarbon
Volume112
DOIs
Publication statusPublished - 1 Feb 2017

Cite this

Tian, Z., Yu, P., Lowe, S. E., Pandolfo, T. G., Gengenbach, T. R., Nairn, K. M., ... Li, D. (2017). Facile electrochemical approach for the production of graphite oxide with tunable chemistry. Carbon, 112, 185-191. https://doi.org/10.1016/j.carbon.2016.10.098
Tian, Zhiming ; Yu, Pei ; Lowe, Sean E. ; Pandolfo, Tony G. ; Gengenbach, Thomas R. ; Nairn, Kate. M. ; Song, Jingchao ; Wang, Xin ; Zhong, Yu Lin ; Li, Dan. / Facile electrochemical approach for the production of graphite oxide with tunable chemistry. In: Carbon. 2017 ; Vol. 112. pp. 185-191.
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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 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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Tian, Z, Yu, P, Lowe, SE, Pandolfo, TG, Gengenbach, TR, Nairn, KM, Song, J, Wang, X, Zhong, YL & Li, D 2017, 'Facile electrochemical approach for the production of graphite oxide with tunable chemistry' Carbon, vol. 112, pp. 185-191. https://doi.org/10.1016/j.carbon.2016.10.098

Facile electrochemical approach for the production of graphite oxide with tunable chemistry. / Tian, Zhiming; Yu, Pei; Lowe, Sean E.; Pandolfo, Tony G.; Gengenbach, Thomas R.; Nairn, Kate. M.; Song, Jingchao; Wang, Xin; Zhong, Yu Lin; Li, Dan.

In: Carbon, Vol. 112, 01.02.2017, p. 185-191.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Tian, Zhiming

AU - Yu, Pei

AU - Lowe, Sean E.

AU - Pandolfo, Tony G.

AU - Gengenbach, Thomas R.

AU - Nairn, Kate. M.

AU - Song, Jingchao

AU - Wang, Xin

AU - Zhong, Yu Lin

AU - Li, Dan

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AB - 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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Tian Z, Yu P, Lowe SE, Pandolfo TG, Gengenbach TR, Nairn KM et al. Facile electrochemical approach for the production of graphite oxide with tunable chemistry. Carbon. 2017 Feb 1;112:185-191. https://doi.org/10.1016/j.carbon.2016.10.098