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Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide
To reduce the global emissions of CO [Formula: see text] , the aviation industry largely relies on new light weight materials, which require multifunctional coatings. Graphene and its derivatives are particularly promising for combining light weight applications with functional coatings. Although th...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267235/ https://www.ncbi.nlm.nih.gov/pubmed/35806768 http://dx.doi.org/10.3390/ma15134639 |
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author | Ostermann, Markus Velicsanyi, Peter Bilotto, Pierluigi Schodl, Juergen Nadlinger, Markus Fafilek, Guenter Lieberzeit, Peter A. Valtiner, Markus |
author_facet | Ostermann, Markus Velicsanyi, Peter Bilotto, Pierluigi Schodl, Juergen Nadlinger, Markus Fafilek, Guenter Lieberzeit, Peter A. Valtiner, Markus |
author_sort | Ostermann, Markus |
collection | PubMed |
description | To reduce the global emissions of CO [Formula: see text] , the aviation industry largely relies on new light weight materials, which require multifunctional coatings. Graphene and its derivatives are particularly promising for combining light weight applications with functional coatings. Although they have proven to have outstanding properties, graphene and its precursor graphene oxide (GO) remain far from application at the industrial scale since a comprehensive protocol for mass production is still lacking. In this work, we develop and systematically describe a sustainable up-scaling process for the production of GO based on a three-step electrochemical exfoliation method. Surface characterization techniques (XRD, XPS and Raman) allow the understanding of the fast exfoliation rates obtained, and of high conductivities that are up to four orders of magnitude higher compared to GO produced via the commonly used modified Hummers method. Furthermore, we show that a newly developed mild thermal reduction at 250 °C is sufficient to increase conductivity by another order of magnitude, while limiting energy requirements. The proposed GO powder protocol suggests an up-scaling linear relation between the amount of educt surface and volume of electrolyte. This may support the mass production of GO-based coatings for the aviation industry, and address challenges such as low weight, fire, de-icing and lightning strike protection. |
format | Online Article Text |
id | pubmed-9267235 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92672352022-07-09 Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide Ostermann, Markus Velicsanyi, Peter Bilotto, Pierluigi Schodl, Juergen Nadlinger, Markus Fafilek, Guenter Lieberzeit, Peter A. Valtiner, Markus Materials (Basel) Article To reduce the global emissions of CO [Formula: see text] , the aviation industry largely relies on new light weight materials, which require multifunctional coatings. Graphene and its derivatives are particularly promising for combining light weight applications with functional coatings. Although they have proven to have outstanding properties, graphene and its precursor graphene oxide (GO) remain far from application at the industrial scale since a comprehensive protocol for mass production is still lacking. In this work, we develop and systematically describe a sustainable up-scaling process for the production of GO based on a three-step electrochemical exfoliation method. Surface characterization techniques (XRD, XPS and Raman) allow the understanding of the fast exfoliation rates obtained, and of high conductivities that are up to four orders of magnitude higher compared to GO produced via the commonly used modified Hummers method. Furthermore, we show that a newly developed mild thermal reduction at 250 °C is sufficient to increase conductivity by another order of magnitude, while limiting energy requirements. The proposed GO powder protocol suggests an up-scaling linear relation between the amount of educt surface and volume of electrolyte. This may support the mass production of GO-based coatings for the aviation industry, and address challenges such as low weight, fire, de-icing and lightning strike protection. MDPI 2022-07-01 /pmc/articles/PMC9267235/ /pubmed/35806768 http://dx.doi.org/10.3390/ma15134639 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ostermann, Markus Velicsanyi, Peter Bilotto, Pierluigi Schodl, Juergen Nadlinger, Markus Fafilek, Guenter Lieberzeit, Peter A. Valtiner, Markus Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title | Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title_full | Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title_fullStr | Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title_full_unstemmed | Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title_short | Development and Up-Scaling of Electrochemical Production and Mild Thermal Reduction of Graphene Oxide |
title_sort | development and up-scaling of electrochemical production and mild thermal reduction of graphene oxide |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9267235/ https://www.ncbi.nlm.nih.gov/pubmed/35806768 http://dx.doi.org/10.3390/ma15134639 |
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