Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method

Abstract Partial oxidation of nanocarbon materials is one of the most straightforward methods to improve their compatibility with other materials, which widens its application potential. This work studied how the microstructure and properties of high crystallinity single-walled carbon nanotubes (SWC...

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Main Authors: Grzegorz Stando, Sujie Han, Bogumiła Kumanek, Dariusz Łukowiec, Dawid Janas
Format: Article
Language:English
Published: Nature Portfolio 2022-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-08343-5
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author Grzegorz Stando
Sujie Han
Bogumiła Kumanek
Dariusz Łukowiec
Dawid Janas
author_facet Grzegorz Stando
Sujie Han
Bogumiła Kumanek
Dariusz Łukowiec
Dawid Janas
author_sort Grzegorz Stando
collection DOAJ
description Abstract Partial oxidation of nanocarbon materials is one of the most straightforward methods to improve their compatibility with other materials, which widens its application potential. This work studied how the microstructure and properties of high crystallinity single-walled carbon nanotubes (SWCNTs) can be tailored by applying the modified Hummers method. The influence of temperature (0, 18, 40 °C), reaction time (0 min to 7 h), and the amount of KMnO4 oxidant was monitored. The results showed that depending on the oxidation conditions, the electronic characteristics of the material could be adjusted. After optimizing the parameters, the SWCNTs were much more conductive (1369 ± 84 S/cm with respect to 283 ± 32 S/cm for the untreated material). At the same time, the films made from them exhibited hydrophilic character of the surface (water contact angle changed from 71° to 27°).
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spelling doaj.art-81e8048e631b436c8da1af1d2446c5b72022-12-21T23:50:46ZengNature PortfolioScientific Reports2045-23222022-03-0112111310.1038/s41598-022-08343-5Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers methodGrzegorz Stando0Sujie Han1Bogumiła Kumanek2Dariusz Łukowiec3Dawid Janas4Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of TechnologySchool of Materials Science and Chemical Engineering, Ningbo UniversityDepartment of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of TechnologyInstitute of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of TechnologyDepartment of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of TechnologyAbstract Partial oxidation of nanocarbon materials is one of the most straightforward methods to improve their compatibility with other materials, which widens its application potential. This work studied how the microstructure and properties of high crystallinity single-walled carbon nanotubes (SWCNTs) can be tailored by applying the modified Hummers method. The influence of temperature (0, 18, 40 °C), reaction time (0 min to 7 h), and the amount of KMnO4 oxidant was monitored. The results showed that depending on the oxidation conditions, the electronic characteristics of the material could be adjusted. After optimizing the parameters, the SWCNTs were much more conductive (1369 ± 84 S/cm with respect to 283 ± 32 S/cm for the untreated material). At the same time, the films made from them exhibited hydrophilic character of the surface (water contact angle changed from 71° to 27°).https://doi.org/10.1038/s41598-022-08343-5
spellingShingle Grzegorz Stando
Sujie Han
Bogumiła Kumanek
Dariusz Łukowiec
Dawid Janas
Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
Scientific Reports
title Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
title_full Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
title_fullStr Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
title_full_unstemmed Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
title_short Tuning wettability and electrical conductivity of single-walled carbon nanotubes by the modified Hummers method
title_sort tuning wettability and electrical conductivity of single walled carbon nanotubes by the modified hummers method
url https://doi.org/10.1038/s41598-022-08343-5
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