Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1002/pen.26279 http://hdl.handle.net/11449/247008 |
Resumo: | Blankets based on blends with different PAN/lignin ratios (10 and 50% wt. of lignin) were processed via electrospinning. Then, the blankets obtained were thermally treated in order to produce samples of carbon nanofibers. The thermo-oxidative stabilization parameters were defined based on a 23-factorial design. The samples, after stabilization, were analyzed by differential scanning calorimetry (DSC), thermogravimetry (TGA), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR) techniques. Based on the results, the best parameters for the stabilization of electrospun, blankets were selected, and subsequently, the most adequate carbonization parameters were established to obtain the carbon blankets. The carbonized blankets were characterized for electrical conductivity by impedance spectroscopy, chemical structure (Raman and FT-IR spectroscopies), crystallographic ordering by X-ray diffraction (XRD), and morphology (SEM). The results showed the feasibility of producing carbon blankets based on PAN/lignin blends. However, carbonized blankets showed low carbon yield (10–56%) and a decrease of up to 70% in fiber diameter. XRD and Raman spectroscopy showed that the structural ordering of carbon blankets presents different values according to the heat treatment parameters used (45–57%) and a poorly ordered structure, indicated by the ID/IG ratio. |
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Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinningcarbon nanofiberscarbonizationligninoxidative thermal stabilizationpolyacrylonitrileBlankets based on blends with different PAN/lignin ratios (10 and 50% wt. of lignin) were processed via electrospinning. Then, the blankets obtained were thermally treated in order to produce samples of carbon nanofibers. The thermo-oxidative stabilization parameters were defined based on a 23-factorial design. The samples, after stabilization, were analyzed by differential scanning calorimetry (DSC), thermogravimetry (TGA), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR) techniques. Based on the results, the best parameters for the stabilization of electrospun, blankets were selected, and subsequently, the most adequate carbonization parameters were established to obtain the carbon blankets. The carbonized blankets were characterized for electrical conductivity by impedance spectroscopy, chemical structure (Raman and FT-IR spectroscopies), crystallographic ordering by X-ray diffraction (XRD), and morphology (SEM). The results showed the feasibility of producing carbon blankets based on PAN/lignin blends. However, carbonized blankets showed low carbon yield (10–56%) and a decrease of up to 70% in fiber diameter. XRD and Raman spectroscopy showed that the structural ordering of carbon blankets presents different values according to the heat treatment parameters used (45–57%) and a poorly ordered structure, indicated by the ID/IG ratio.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Faculty of Engineering São Paulo State University (UNESP)Laboratory of Sensors National Institute for Space Research (INPE)Institute of Science and Technology Federal University of São Paulo (UNIFESP)Faculty of Engineering São Paulo State University (UNESP)FAPESP: 2017/16970-0CNPq: 304876/2020-8CNPq: 305123/2018-1Universidade Estadual Paulista (UNESP)National Institute for Space Research (INPE)Universidade de São Paulo (USP)Cintra, Isabela L. R. [UNESP]Baldan, Mauricio R.Anjos, Erick G. R.Silva, Thais F.Guerrini, Lilia M.Rezende, Mirabel C.Botelho, Edson C. [UNESP]2023-07-29T12:56:29Z2023-07-29T12:56:29Z2023-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1246-1262http://dx.doi.org/10.1002/pen.26279Polymer Engineering and Science, v. 63, n. 4, p. 1246-1262, 2023.1548-26340032-3888http://hdl.handle.net/11449/24700810.1002/pen.262792-s2.0-85150226831Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPolymer Engineering and Scienceinfo:eu-repo/semantics/openAccess2023-07-29T12:56:29Zoai:repositorio.unesp.br:11449/247008Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T12:56:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
title |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
spellingShingle |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning Cintra, Isabela L. R. [UNESP] carbon nanofibers carbonization lignin oxidative thermal stabilization polyacrylonitrile |
title_short |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
title_full |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
title_fullStr |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
title_full_unstemmed |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
title_sort |
Processing and characterization of carbon nanofibers obtained from PAN/lignin blends processed by electrospinning |
author |
Cintra, Isabela L. R. [UNESP] |
author_facet |
Cintra, Isabela L. R. [UNESP] Baldan, Mauricio R. Anjos, Erick G. R. Silva, Thais F. Guerrini, Lilia M. Rezende, Mirabel C. Botelho, Edson C. [UNESP] |
author_role |
author |
author2 |
Baldan, Mauricio R. Anjos, Erick G. R. Silva, Thais F. Guerrini, Lilia M. Rezende, Mirabel C. Botelho, Edson C. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) National Institute for Space Research (INPE) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Cintra, Isabela L. R. [UNESP] Baldan, Mauricio R. Anjos, Erick G. R. Silva, Thais F. Guerrini, Lilia M. Rezende, Mirabel C. Botelho, Edson C. [UNESP] |
dc.subject.por.fl_str_mv |
carbon nanofibers carbonization lignin oxidative thermal stabilization polyacrylonitrile |
topic |
carbon nanofibers carbonization lignin oxidative thermal stabilization polyacrylonitrile |
description |
Blankets based on blends with different PAN/lignin ratios (10 and 50% wt. of lignin) were processed via electrospinning. Then, the blankets obtained were thermally treated in order to produce samples of carbon nanofibers. The thermo-oxidative stabilization parameters were defined based on a 23-factorial design. The samples, after stabilization, were analyzed by differential scanning calorimetry (DSC), thermogravimetry (TGA), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR) techniques. Based on the results, the best parameters for the stabilization of electrospun, blankets were selected, and subsequently, the most adequate carbonization parameters were established to obtain the carbon blankets. The carbonized blankets were characterized for electrical conductivity by impedance spectroscopy, chemical structure (Raman and FT-IR spectroscopies), crystallographic ordering by X-ray diffraction (XRD), and morphology (SEM). The results showed the feasibility of producing carbon blankets based on PAN/lignin blends. However, carbonized blankets showed low carbon yield (10–56%) and a decrease of up to 70% in fiber diameter. XRD and Raman spectroscopy showed that the structural ordering of carbon blankets presents different values according to the heat treatment parameters used (45–57%) and a poorly ordered structure, indicated by the ID/IG ratio. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:56:29Z 2023-07-29T12:56:29Z 2023-04-01 |
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 |
http://dx.doi.org/10.1002/pen.26279 Polymer Engineering and Science, v. 63, n. 4, p. 1246-1262, 2023. 1548-2634 0032-3888 http://hdl.handle.net/11449/247008 10.1002/pen.26279 2-s2.0-85150226831 |
url |
http://dx.doi.org/10.1002/pen.26279 http://hdl.handle.net/11449/247008 |
identifier_str_mv |
Polymer Engineering and Science, v. 63, n. 4, p. 1246-1262, 2023. 1548-2634 0032-3888 10.1002/pen.26279 2-s2.0-85150226831 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Polymer Engineering and Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1246-1262 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965087933399040 |