Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability
Abstract Neutral radicals, including carbon radicals, are highly useful chemical species for the functionalization of semiconducting materials to change their electrical and optical properties owing to their high reactivity. However, boron radicals have been limited to synthetic and reaction chemist...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-12-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-48847-2 |
| _version_ | 1797388417149960192 |
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| author | Naoki Tanaka Aoi Hamasuna Itsuki Yamaguchi Koichiro Kato Tsuyohiko Fujigaya |
| author_facet | Naoki Tanaka Aoi Hamasuna Itsuki Yamaguchi Koichiro Kato Tsuyohiko Fujigaya |
| author_sort | Naoki Tanaka |
| collection | DOAJ |
| description | Abstract Neutral radicals, including carbon radicals, are highly useful chemical species for the functionalization of semiconducting materials to change their electrical and optical properties owing to their high reactivity. However, boron radicals have been limited to synthetic and reaction chemistry, with rare utilization in materials science. In this study, a mixture of tetrahydroxydiboron (B2(OH)4) and pyridine derivatives was found to act as an electron dopant for single-walled carbon nanotubes (SWCNTs) because of the electron transfer from pyridine-mediated boron radicals generated by B–B bond dissociation to neutral radicals. In particular, the radical formed from a mixture of B2(OH)4 and 4-phenylpyridine ((4-Phpy)B(OH)2 ·) efficiently doped electrons into the SWCNT films; thus, n-type SWCNTs with long-term air stability for more than 50 days at room temperature were prepared. Furthermore, the experimental and theoretical surface analyses revealed that the formation of stable cations from ((4-Phpy)B(OH)2 ·) and the efficient interaction with SWCNTs due to their high planarity served as the mechanism for their stable doping. |
| first_indexed | 2024-03-08T22:40:32Z |
| format | Article |
| id | doaj.art-8ede00bf97f74b669e4d1923ebe350d7 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-08T22:40:32Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8ede00bf97f74b669e4d1923ebe350d72023-12-17T12:13:36ZengNature PortfolioScientific Reports2045-23222023-12-011311810.1038/s41598-023-48847-2Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stabilityNaoki Tanaka0Aoi Hamasuna1Itsuki Yamaguchi2Koichiro Kato3Tsuyohiko Fujigaya4Department of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityDepartment of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityAbstract Neutral radicals, including carbon radicals, are highly useful chemical species for the functionalization of semiconducting materials to change their electrical and optical properties owing to their high reactivity. However, boron radicals have been limited to synthetic and reaction chemistry, with rare utilization in materials science. In this study, a mixture of tetrahydroxydiboron (B2(OH)4) and pyridine derivatives was found to act as an electron dopant for single-walled carbon nanotubes (SWCNTs) because of the electron transfer from pyridine-mediated boron radicals generated by B–B bond dissociation to neutral radicals. In particular, the radical formed from a mixture of B2(OH)4 and 4-phenylpyridine ((4-Phpy)B(OH)2 ·) efficiently doped electrons into the SWCNT films; thus, n-type SWCNTs with long-term air stability for more than 50 days at room temperature were prepared. Furthermore, the experimental and theoretical surface analyses revealed that the formation of stable cations from ((4-Phpy)B(OH)2 ·) and the efficient interaction with SWCNTs due to their high planarity served as the mechanism for their stable doping.https://doi.org/10.1038/s41598-023-48847-2 |
| spellingShingle | Naoki Tanaka Aoi Hamasuna Itsuki Yamaguchi Koichiro Kato Tsuyohiko Fujigaya Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability Scientific Reports |
| title | Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability |
| title_full | Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability |
| title_fullStr | Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability |
| title_full_unstemmed | Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability |
| title_short | Pyridine-mediated B–B bond cleavage of tetrahydroxydiboron to synthesize n-doped SWCNTs with long-term air stability |
| title_sort | pyridine mediated b b bond cleavage of tetrahydroxydiboron to synthesize n doped swcnts with long term air stability |
| url | https://doi.org/10.1038/s41598-023-48847-2 |
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