Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/69026 |
Resumo: | Manuscript Draft |
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Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene compositesCiências Naturais::Ciências FísicasEngenharia e Tecnologia::Engenharia dos MateriaisScience & TechnologyManuscript DraftIn this work, commercial vapor grown carbon nanofibers (CNF), produced by chemical vapor deposition (CVD), were melt extruded with polypropylene (PP) with the aim of analyzing their thermoelectric properties (i.e., electrical conductivity, thermoelectric power, power factor and figure of merit). Unexpectedly, all PP/CNF composites showed negative thermoelectric power (TEP) values instead of showing the typical positive TEP observed for this type of carbon-based polymer composites. These results can be attributed to the double layer structure surrounding the tubular core of the carbon nanofiber grown by the CVD method at 1100 °C, which may lead the intrinsically negative TEP contribution from the larger inner layer to counteract the positive TEP contribution from the smaller outer layer due to common oxygen doping. Overall, all composites showed negative TEP values around −8.5 μVK−1 and a maximum power factor of 1.75 × 10-3 μW m-1 K−2, corresponding to a figure of merit of 1.2 × 10-6 at room temperature. This study demonstrates that melt mixed polymer composites with large-diameter tubular carbon nanostructures and negative Seebeck coefficients can be directly produced with large-scale processing methods without requiring specific additives and/or deoxygenation treatments.POCI-01-0145-FEDER-007136, POCI-01-0145- FEDER-006941, POCI-01-0145-FEDER-016723, UID/CTM/00264/2019. FEDER funds through the Competitivity Factors Operational Programme - COMPETE 2020 and by national funds through FCT – Foundation for Science and Technology (project POCI-01-0145-FEDER-007136, POCI01-0145-FEDER-006941 and POCI-01-0145-FEDER-016723 and Strategic Funding UID/FIS/04650/2013 and UID/EEA/04436/2013). E. M. F. Vieira is grateful for financial support through the FCT grant SFRH/BPD/95905/2013ElsevierUniversidade do MinhoPaleo, A. J.Vieira, E. M. F.Wan, K.Bondarchuk, O.Cerqueira, M. F.Gonçalves, L. M.Bilotti, E.Alpuim, P.Rocha, A. M.2019-092019-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/69026engPaleo, A. J., Vieira, E. M. F., Wan, K., Bondarchuk, O., Cerqueira, M. F., Goncalves, L. M., … Rocha, A. M. (2019, September). Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites. Carbon. Elsevier BV. http://doi.org/10.1016/j.carbon.2019.05.0350008-622310.1016/j.carbon.2019.05.035https://www.sciencedirect.com/science/article/pii/S0008622319305044info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:09:04Zoai:repositorium.sdum.uminho.pt:1822/69026Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:00:25.614965Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
title |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
spellingShingle |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites Paleo, A. J. Ciências Naturais::Ciências Físicas Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
title_short |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
title_full |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
title_fullStr |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
title_full_unstemmed |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
title_sort |
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites |
author |
Paleo, A. J. |
author_facet |
Paleo, A. J. Vieira, E. M. F. Wan, K. Bondarchuk, O. Cerqueira, M. F. Gonçalves, L. M. Bilotti, E. Alpuim, P. Rocha, A. M. |
author_role |
author |
author2 |
Vieira, E. M. F. Wan, K. Bondarchuk, O. Cerqueira, M. F. Gonçalves, L. M. Bilotti, E. Alpuim, P. Rocha, A. M. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Paleo, A. J. Vieira, E. M. F. Wan, K. Bondarchuk, O. Cerqueira, M. F. Gonçalves, L. M. Bilotti, E. Alpuim, P. Rocha, A. M. |
dc.subject.por.fl_str_mv |
Ciências Naturais::Ciências Físicas Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
topic |
Ciências Naturais::Ciências Físicas Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
description |
Manuscript Draft |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-09 2019-09-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/69026 |
url |
https://hdl.handle.net/1822/69026 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Paleo, A. J., Vieira, E. M. F., Wan, K., Bondarchuk, O., Cerqueira, M. F., Goncalves, L. M., … Rocha, A. M. (2019, September). Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites. Carbon. Elsevier BV. http://doi.org/10.1016/j.carbon.2019.05.035 0008-6223 10.1016/j.carbon.2019.05.035 https://www.sciencedirect.com/science/article/pii/S0008622319305044 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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