Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction

Martis, Alberto; Fontana, Marco; Serrapede, Mara; Bianco, Stefano; Chiodoni, Angelica; Pirri, Candido Fabrizio; Bocchini, Sergio

doi:10.3390/colloids6040075

Open AccessArticle

Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction

by

Alberto Martis

^1,2,*

,

Marco Fontana

^1,2

,

Mara Serrapede

^1,2,

Stefano Bianco

²,

Angelica Chiodoni

¹

,

Candido Fabrizio Pirri

^1,2

and

Sergio Bocchini

^1,2,*

¹

Center for Sustainable Future Technologies (CSFT)@Polito, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Torino, Italy

²

Department of Applied Science and Technology—DISAT, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy

^*

Authors to whom correspondence should be addressed.

Colloids Interfaces 2022, 6(4), 75; https://doi.org/10.3390/colloids6040075

Submission received: 4 September 2022 / Revised: 8 November 2022 / Accepted: 28 November 2022 / Published: 5 December 2022

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Abstract

Graphene is a 2D carbon material with peculiar features such as high electrical conductivity, high thermal conductivity, mechanical stability, and a high ratio between surface and thickness. Applications are continuously growing, and the possibility of dispersing graphene in low-boiling green solvents could reduce its global environmental impact. Pristine graphene can be dispersed in high concentration only in polar aprotic solvents that usually have high boiling points and high toxicity. For this reason, the oxidized form of graphene is always used, as it is easier to disperse and to subsequently reduce to reduced graphene oxide. However, compared to pristine graphene, reduced graphene oxide has more defects and has inferior properties respect to graphene. In this work, the polymerization of (diethyl maleate derivate) on graphene obtained by sonication was performed in a microwave reactor. The obtained material has good stability in ethanol even after a long period of time, therefore, it can be used to deposit graphene by mass production of inks or by casting and easy removal of the solvent. The thermal annealing by heating at 300–400 °C in inert atmosphere allows the removal of the polymer to obtain pristine graphene with a low number of defects.

Keywords: graphene; microwave reaction; dispersion

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MDPI and ACS Style

Martis, A.; Fontana, M.; Serrapede, M.; Bianco, S.; Chiodoni, A.; Pirri, C.F.; Bocchini, S. Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction. Colloids Interfaces 2022, 6, 75. https://doi.org/10.3390/colloids6040075

AMA Style

Martis A, Fontana M, Serrapede M, Bianco S, Chiodoni A, Pirri CF, Bocchini S. Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction. Colloids and Interfaces. 2022; 6(4):75. https://doi.org/10.3390/colloids6040075

Chicago/Turabian Style

Martis, Alberto, Marco Fontana, Mara Serrapede, Stefano Bianco, Angelica Chiodoni, Candido Fabrizio Pirri, and Sergio Bocchini. 2022. "Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction" Colloids and Interfaces 6, no. 4: 75. https://doi.org/10.3390/colloids6040075

APA Style

Martis, A., Fontana, M., Serrapede, M., Bianco, S., Chiodoni, A., Pirri, C. F., & Bocchini, S. (2022). Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction. Colloids and Interfaces, 6(4), 75. https://doi.org/10.3390/colloids6040075

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Production of Graphene Stably Dispersible in Ethanol by Microwave Reaction

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