Heat source free water floating carbon nanotube thermoelectric generators
Abstract Thermoelectric generators (TEGs) produce electric power from environmental heat energy and are expected to play a key role in powering the Internet of things. However, they require a heat source to create a stable and irreversible temperature gradient. Overcoming these restrictions will all...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-94242-0 |
| _version_ | 1818834645556396032 |
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| author | Tomoyuki Chiba Yuki Amma Masayuki Takashiri |
| author_facet | Tomoyuki Chiba Yuki Amma Masayuki Takashiri |
| author_sort | Tomoyuki Chiba |
| collection | DOAJ |
| description | Abstract Thermoelectric generators (TEGs) produce electric power from environmental heat energy and are expected to play a key role in powering the Internet of things. However, they require a heat source to create a stable and irreversible temperature gradient. Overcoming these restrictions will allow the use of TEGs to proliferate. Therefore, we propose heat source-free water-floating carbon nanotube (CNT) TEGs. Output voltage and power are generated by the temperature gradient in the CNT films in which water pumping via capillary action leads to evaporation-induced cooling in selected areas. Furthermore, the output voltage and power increase when the films are exposed to sunlight and wind flow. These water-floating CNT TEGs demonstrate a pathway for developing wireless monitoring systems for water environments. |
| first_indexed | 2024-12-19T02:38:07Z |
| format | Article |
| id | doaj.art-a848b9cf9e784778b20f81bbecbd96e5 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T02:38:07Z |
| publishDate | 2021-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-a848b9cf9e784778b20f81bbecbd96e52022-12-21T20:39:16ZengNature PortfolioScientific Reports2045-23222021-07-011111710.1038/s41598-021-94242-0Heat source free water floating carbon nanotube thermoelectric generatorsTomoyuki Chiba0Yuki Amma1Masayuki Takashiri2Department of Materials Science, Tokai UniversityDepartment of Materials Science, Tokai UniversityDepartment of Materials Science, Tokai UniversityAbstract Thermoelectric generators (TEGs) produce electric power from environmental heat energy and are expected to play a key role in powering the Internet of things. However, they require a heat source to create a stable and irreversible temperature gradient. Overcoming these restrictions will allow the use of TEGs to proliferate. Therefore, we propose heat source-free water-floating carbon nanotube (CNT) TEGs. Output voltage and power are generated by the temperature gradient in the CNT films in which water pumping via capillary action leads to evaporation-induced cooling in selected areas. Furthermore, the output voltage and power increase when the films are exposed to sunlight and wind flow. These water-floating CNT TEGs demonstrate a pathway for developing wireless monitoring systems for water environments.https://doi.org/10.1038/s41598-021-94242-0 |
| spellingShingle | Tomoyuki Chiba Yuki Amma Masayuki Takashiri Heat source free water floating carbon nanotube thermoelectric generators Scientific Reports |
| title | Heat source free water floating carbon nanotube thermoelectric generators |
| title_full | Heat source free water floating carbon nanotube thermoelectric generators |
| title_fullStr | Heat source free water floating carbon nanotube thermoelectric generators |
| title_full_unstemmed | Heat source free water floating carbon nanotube thermoelectric generators |
| title_short | Heat source free water floating carbon nanotube thermoelectric generators |
| title_sort | heat source free water floating carbon nanotube thermoelectric generators |
| url | https://doi.org/10.1038/s41598-021-94242-0 |
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