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Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites

Bibliographic Details
Main Author: Paleo, A. J.
Publication Date: 2019
Other Authors: Vieira, E. M. F., Wan, K., Bondarchuk, O., Cerqueira, M. F., Gonçalves, L. M., Bilotti, E., Alpuim, P., Rocha, A. M.
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/1822/69026
Summary: Manuscript Draft
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spelling 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:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-04-12T04:23:23Zoai:repositorium.sdum.uminho.pt:1822/69026Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:06:19.779115Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
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:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833595102582276096

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