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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Nature Portfolio
2022-03-01
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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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