| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/44SSREP | |||
| Repository | sid.inpe.br/mtc-m21d/2021/06.18.12.08 (restricted access) | |||
| Last Update | 2021:06.18.12.08.07 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2021/06.18.12.08.07 | |||
| Metadata Last Update | 2022:04.03.23.14.00 (UTC) administrator | |||
| DOI | 10.1590/S1517-707620210002.1272 | |||
| ISSN | 1579-2641 | |||
| Citation Key | CostaRoMaBaReSa:2021:ObNaCa | |||
| Title | Obtenção de nanofios de carbono a partir de copolímero de PAN eletrofiados para aplicação como supercapacitores  | |||
| Year | 2021 | |||
| Access Date | 2024, May 09 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PN | |||
| Number of Files | 1 | |||
| Size | 1061 KiB | |||
| 2. Context | ||||
| Author | 1 Costa, Hugo Moreira da Silva 2 Rodrigues, Valdinei Euzebio 3 Matsushima, Jorge Tadao 4 Baldan, Maurício Ribeiro 5 Rezende, Mirabel Cerqueira 6 Sales, Rita de Cássia Mendonça | |||
| Resume Identifier | 1 2 3 4 8JMKD3MGP5W/3C9JHTA | |||
| Group | 1 2 3 4 COPDT-CGIP-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Faculdade de Tecnologia de São José dos Campos (FATEC) 2 Faculdade de Tecnologia de São José dos Campos (FATEC) 3 Faculdade de Tecnologia de São José dos Campos (FATEC) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Universidade Federal de São Paulo (UNIFESP) 6 Faculdade de Tecnologia de São José dos Campos (FATEC) | |||
| Author e-Mail Address | 1 hugomoreiracosta@hotmail.com 2 valdinei.rodrigues@fatec.sp.gov.br 3 jorge.matsushima@fatec.sp.gov.br 4 mauricio.baldan@inpe.br 5 mirabelcr@gmail.com 6 rita.sales@fatec.sp.gov.br | |||
| Journal | Matéria | |||
| Volume | 26 | |||
| Number | 2 | |||
| Pages | e12972 | |||
| Secondary Mark | C_CIÊNCIAS_SOCIAIS_APLICADAS_I | |||
| History (UTC) | 2021-06-18 12:09:33 :: simone -> administrator :: 2021 2022-04-03 23:14:00 :: administrator -> simone :: 2021 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Keywords | Electrospinning Carbonization Supercapacitor PAN copolymers | |||
| Abstract | Currently, there is a demand in the search for materials with high power density, long life cycle and low environmental impact that are mostly used fot the supercapacitors production, which are considered promising energy power for electronic systems. The most promising types of materials for this application are those based on carbon, due to their flexibility, surface area and good electrochemical stability. For the production of carbonaceous materials, the main precursor used is polyacrylonitrile (PAN) and its variations from the addition of monomers, such as methyl acrylate (MA). Generally, these materials are used in forms of blankets or yarns produced from spinning processes and later carbonized to generate the carbonaceous material. One of the spinning processes that has been widely studied for obtaining carbon nanofibers is the electrospinning process. Therefore, this paper presents the results obtained from the carbonization of electrospun blankets manufactured from solutions of polyacrylonitrile homopolymer (PANH) and poly (acrylonitrile-co-6 % methyl acrylate) (PAN6MA) combined with dimethylformamide in order to obtain material for use in supercapacitors. The polymers used were analyzed by DSC to obtain the values related to cyclization, by that were possible to observe a better thermal stability related to the samples of PAN6MA, with a temperature range of 240-312 degrees C and maximum temperature of the exothermic peak of 292 degrees C. The electrospun mats were oxidized at 235 degrees C per 5 min and carbonized at 90 degrees C per 5 min. Both pre-carbonization and post-carbonization mats were analyzed by SEM, showing fibers with smooth surface, randomly dispersion and nanometric size, with values of diameter of approximately 219 nm for PANH carbon nanofibers (NfcPANH) and 185 nm for PAN6MA carbon nanofibers (NfcPAN6MA). The carbonized mats were analyzed by RAMAN technique and it was possible to obtain the data related to the carbon structure present in the samples, where the obtained values showed that the mats manufactured from PAN6MA presented the lower value of degree of crystallinity measured from the relationship between bands D and G known as factor I-D/I-G, the value obtained being equal to 1.06 for NfcPAN6MA and 1.24 for NfcPANH, this shows a higher concentration of crystalline graphitic structures when compared with the samples produced from PANH. To obtain the capacitive characteristic, the load/discharge curves were surveyed by chronopotentiometric analysis, where it was possible to observe the best characteristics related to the specific capacity and low current cycling stability applied to the PAN - co- 6% methyl acrylate sample with specific capacity values of 270.9 F/g, energy density of 30.0 Wh/kg and power density of 153.5 W/kg. The results obtained demonstrated that the material presented potential for the proposed application. | |||
| Area | FISMAT | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGIP > Obtenção de nanofios... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | costa_obtencao.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KUES5 | |||
| Citing Item List | sid.inpe.br/bibdigital/2022/04.03.23.11 4 sid.inpe.br/mtc-m21/2012/07.13.14.56.32 1 | |||
| Dissemination | PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository month nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||