Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix
Thermoelectric Generators (TEGs) are devices that have the ability to directly convert heat into electrical power, or vice-versa, and are being envisaged as one off-the-grid power source. Furthermore, carbon-based materials have been used as a conducting filler to improve several properties in therm...
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| Format: | Article |
| Language: | English |
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Universidade do Porto
2022-05-01
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| Series: | U.Porto Journal of Engineering |
| Subjects: | |
| Online Access: | https://journalengineering.fe.up.pt/index.php/upjeng/article/view/1511 |
| _version_ | 1828807791869952000 |
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| author | Miguel Ângelo Silva Almeida João M. Magalhães Maria M. Maia Ana L. Pires André M. Pereira |
| author_facet | Miguel Ângelo Silva Almeida João M. Magalhães Maria M. Maia Ana L. Pires André M. Pereira |
| author_sort | Miguel Ângelo Silva Almeida |
| collection | DOAJ |
| description | Thermoelectric Generators (TEGs) are devices that have the ability to directly convert heat into electrical power, or vice-versa, and are being envisaged as one off-the-grid power source. Furthermore, carbon-based materials have been used as a conducting filler to improve several properties in thermoelectric materials. The present work studied the influence on the thermoelectric performance of Bi2Te3 bulk materials by incorporating different concentrations of Multi-Walled Carbon Nanotubes (MWCNT). In order to control and understand the influence of MWCNT dispersion in the nanocomposite, two different production methods (manual grinding and ultrasonication) were carried out and compared. It was verified that a larger dispersion leads to a better outcome for thermoelectric performance. The achieved Seebeck coefficient was up to -162 µV K-1 with a Power Factor of 0.50 µW K-2m-1, for the nanocomposite produced with 11.8 %V of MWCNT. This result demonstrates the ability to increase the thermoelectric performance of Bi2Te3 throughout the addition of MWCNT. |
| first_indexed | 2024-12-12T08:30:06Z |
| format | Article |
| id | doaj.art-0b521a453dd145bb9ce7c4d2e4a1a818 |
| institution | Directory Open Access Journal |
| issn | 2183-6493 |
| language | English |
| last_indexed | 2024-12-12T08:30:06Z |
| publishDate | 2022-05-01 |
| publisher | Universidade do Porto |
| record_format | Article |
| series | U.Porto Journal of Engineering |
| spelling | doaj.art-0b521a453dd145bb9ce7c4d2e4a1a8182022-12-22T00:31:07ZengUniversidade do PortoU.Porto Journal of Engineering2183-64932022-05-0183354110.24840/2183-6493_008.003_00081682Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric MatrixMiguel Ângelo Silva Almeida0João M. Magalhães1Maria M. Maia2Ana L. Pires3https://orcid.org/0000-0002-6439-7946André M. Pereira4https://orcid.org/0000-0002-8587-262XIFIMUP, University of PortoIFIMUP, University of PortoIFIMUP, University of PortoIFIMUP, University of PortoIFIMUP, University of PortoThermoelectric Generators (TEGs) are devices that have the ability to directly convert heat into electrical power, or vice-versa, and are being envisaged as one off-the-grid power source. Furthermore, carbon-based materials have been used as a conducting filler to improve several properties in thermoelectric materials. The present work studied the influence on the thermoelectric performance of Bi2Te3 bulk materials by incorporating different concentrations of Multi-Walled Carbon Nanotubes (MWCNT). In order to control and understand the influence of MWCNT dispersion in the nanocomposite, two different production methods (manual grinding and ultrasonication) were carried out and compared. It was verified that a larger dispersion leads to a better outcome for thermoelectric performance. The achieved Seebeck coefficient was up to -162 µV K-1 with a Power Factor of 0.50 µW K-2m-1, for the nanocomposite produced with 11.8 %V of MWCNT. This result demonstrates the ability to increase the thermoelectric performance of Bi2Te3 throughout the addition of MWCNT.https://journalengineering.fe.up.pt/index.php/upjeng/article/view/1511thermoelectric generatorsbi2te3mwcntnanocomposites |
| spellingShingle | Miguel Ângelo Silva Almeida João M. Magalhães Maria M. Maia Ana L. Pires André M. Pereira Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix U.Porto Journal of Engineering thermoelectric generators bi2te3 mwcnt nanocomposites |
| title | Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix |
| title_full | Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix |
| title_fullStr | Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix |
| title_full_unstemmed | Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix |
| title_short | Embedding Multi-Wall Carbon Nanotubes as Conductive Nanofiller onto Bi2Te3 Thermoelectric Matrix |
| title_sort | embedding multi wall carbon nanotubes as conductive nanofiller onto bi2te3 thermoelectric matrix |
| topic | thermoelectric generators bi2te3 mwcnt nanocomposites |
| url | https://journalengineering.fe.up.pt/index.php/upjeng/article/view/1511 |
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