Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing
We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | C |
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| Online Access: | https://www.mdpi.com/2311-5629/8/1/1 |
| _version_ | 1818061136865525760 |
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| author | Varun Shenoy Gangoli Chris J. Barnett James D. McGettrick Alvin Orbaek White Andrew R. Barron |
| author_facet | Varun Shenoy Gangoli Chris J. Barnett James D. McGettrick Alvin Orbaek White Andrew R. Barron |
| author_sort | Varun Shenoy Gangoli |
| collection | DOAJ |
| description | We report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT fibers. A study of thermal annealing in a vacuum up to 800 °C was performed on smaller fiber sections along with a separate analysis of voltage annealing up to 7 VDC; both exhibited a sweet spot in the process as determined by a combination of a two-point probe measurement with a nanoprobe, resonant Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Scaled-up tests were then performed in order to translate these results into bulk samples inside a tube furnace, with similar results that indicate the potential for an optimized method of achieving a better conductor sample made from CNT fibers. The results also help to determine the surface effects that need to be overcome in order to achieve this. |
| first_indexed | 2024-12-10T13:43:31Z |
| format | Article |
| id | doaj.art-b78f0d11ea4d49ac84b7a0e35b28fa2f |
| institution | Directory Open Access Journal |
| issn | 2311-5629 |
| language | English |
| last_indexed | 2024-12-10T13:43:31Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | C |
| spelling | doaj.art-b78f0d11ea4d49ac84b7a0e35b28fa2f2022-12-22T01:46:35ZengMDPI AGC2311-56292021-12-0181110.3390/c8010001Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage AnnealingVarun Shenoy Gangoli0Chris J. Barnett1James D. McGettrick2Alvin Orbaek White3Andrew R. Barron4Energy Safety Research Institute, Bay Campus, Swansea University, Swansea SA1 8EN, UKDepartment of Physics, Singleton Campus, Swansea University, Swansea SA2 8PP, UKSPECIFIC, Bay Campus, Swansea University, Swansea SA1 8EN, UKEnergy Safety Research Institute, Bay Campus, Swansea University, Swansea SA1 8EN, UKEnergy Safety Research Institute, Bay Campus, Swansea University, Swansea SA1 8EN, UKWe report the effect of annealing, both electrical and by applied voltage, on the electrical conductivity of fibers spun from carbon nanotubes (CNTs). Commercial CNT fibers were used as part of a larger goal to better understand the factors that go into making a better electrical conductor from CNT fibers. A study of thermal annealing in a vacuum up to 800 °C was performed on smaller fiber sections along with a separate analysis of voltage annealing up to 7 VDC; both exhibited a sweet spot in the process as determined by a combination of a two-point probe measurement with a nanoprobe, resonant Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Scaled-up tests were then performed in order to translate these results into bulk samples inside a tube furnace, with similar results that indicate the potential for an optimized method of achieving a better conductor sample made from CNT fibers. The results also help to determine the surface effects that need to be overcome in order to achieve this.https://www.mdpi.com/2311-5629/8/1/1carboncarbon nanotubeelectrical conductorannealingenergy |
| spellingShingle | Varun Shenoy Gangoli Chris J. Barnett James D. McGettrick Alvin Orbaek White Andrew R. Barron Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing C carbon carbon nanotube electrical conductor annealing energy |
| title | Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing |
| title_full | Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing |
| title_fullStr | Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing |
| title_full_unstemmed | Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing |
| title_short | Increased Electrical Conductivity of Carbon Nanotube Fibers by Thermal and Voltage Annealing |
| title_sort | increased electrical conductivity of carbon nanotube fibers by thermal and voltage annealing |
| topic | carbon carbon nanotube electrical conductor annealing energy |
| url | https://www.mdpi.com/2311-5629/8/1/1 |
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