X-ray diffraction evaluation of the average number of layers in thermal reduced graphene powder for supercapacitor nanomaterial

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dc.contributor.authorCARDOSO, QUEZIA de A.pt_BR
dc.contributor.authorCASINI, JULIO C.S.pt_BR
dc.contributor.authorBARBOSA, LUZINETE P.pt_BR
dc.contributor.authorSERNA, MARILENE M.pt_BR
dc.contributor.authorGALEGO, EGUIBERTOpt_BR
dc.contributor.authorSOBRINHO, LUIZA F.pt_BR
dc.contributor.authorSAKATA, SOLANGE K.pt_BR
dc.contributor.authorFARIA JUNIOR, RUBENS N. dept_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2019-12-27T13:33:56Z
dc.date.available2019-12-27T13:33:56Z
dc.date.issued2019pt_BR
dc.description.abstractGraphene oxide (GO) can be partially reduced to graphene-like sheets by removing the oxygen-containing groups and recovering the conjugated structure. In this work, the thermal reduction of GO powder has been carried out using back pumping vacuum pressures and investigated employing X-ray diffraction analysis. The experimental results of estimating the number of graphene layers on the reduced powder at various temperatures (200 – 1000 °C) have been reported. Electrical changes have been produced in a graphene oxide with the vacuum reduction process. This study has shown that the ideal processing temperature for reducing graphene oxide nanomaterial was about 400 oC. It has also been shown that at 600 oC the number of layers in the reduced nanomaterial increased. The internal series equivalent resistance (ESR) has been improved substantially with the vacuum thermal treatment even at temperatures above 400 oC. ESR was reduced from 95.0 to about 13.8 Ω cm2 with this processing. These results showed that the process can be applied to the reduction of graphene oxide to produce supercapacitor nanomaterials. The advantage of employing this method is that the processing is a straightforward and low cost thermal treatment that might be used for large amount of nanocomposite material.pt_BR
dc.format.extent117-122pt_BR
dc.identifier.citationCARDOSO, QUEZIA de A.; CASINI, JULIO C.S.; BARBOSA, LUZINETE P.; SERNA, MARILENE M.; GALEGO, EGUIBERTO; SOBRINHO, LUIZA F.; SAKATA, SOLANGE K.; FARIA JUNIOR, RUBENS N. de. X-ray diffraction evaluation of the average number of layers in thermal reduced graphene powder for supercapacitor nanomaterial. <b>Materials Science Forum</b>, v. 958, p. 117-122, 2019. DOI: <a href="https://dx.doi.org/10.4028/www.scientific.net/MSF.958.117">10.4028/www.scientific.net/MSF.958.117</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30537.
dc.identifier.doi10.4028/www.scientific.net/MSF.958.117pt_BR
dc.identifier.issn0255-5476pt_BR
dc.identifier.orcid0000-0001-6072-5853pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-6053-3907
dc.identifier.orcidhttps://orcid.org/0000-0001-6072-5853
dc.identifier.percentilfiSem Percentilpt_BR
dc.identifier.percentilfiCiteScore17.50
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30537
dc.identifier.vol958pt_BR
dc.relation.ispartofMaterials Science Forumpt_BR
dc.rightsopenAccesspt_BR
dc.sourceBrazilian Ceramic Congress, 61st, June 4-7, 2017, Gramado, RSpt_BR
dc.subjectgraphene
dc.subjectoxides
dc.subjectx-ray diffraction
dc.subjectvacuum systems
dc.subjectcapacitors
dc.subjectcapacitive energy storage equipment
dc.subjectnanomaterials
dc.subjectelectrical properties
dc.titleX-ray diffraction evaluation of the average number of layers in thermal reduced graphene powder for supercapacitor nanomaterialpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorEGUIBERTO GALEGO
ipen.autorRUBENS NUNES DE FARIA JUNIOR
ipen.autorSOLANGE KAZUMI SAKATA
ipen.autorLUIZA FERREIRA SOBRINHO
ipen.autorMARILENE MORELLI SERNA
ipen.autorLUSINETE PEREIRA BARBOSA
ipen.autorQUEZIA DE AGUIAR CARDOSO
ipen.codigoautor640
ipen.codigoautor227
ipen.codigoautor7038
ipen.codigoautor10156
ipen.codigoautor252
ipen.codigoautor1188
ipen.codigoautor12720
ipen.contributor.ipenauthorEGUIBERTO GALEGO
ipen.contributor.ipenauthorRUBENS NUNES DE FARIA JUNIOR
ipen.contributor.ipenauthorSOLANGE KAZUMI SAKATA
ipen.contributor.ipenauthorLUIZA FERREIRA SOBRINHO
ipen.contributor.ipenauthorMARILENE MORELLI SERNA
ipen.contributor.ipenauthorLUSINETE PEREIRA BARBOSA
ipen.contributor.ipenauthorQUEZIA DE AGUIAR CARDOSO
ipen.date.recebimento19-12
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.fiCiteScore0.7
ipen.identifier.ipendoc26529pt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublication20cb7788-3957-4550-9e5c-cf7f5261eec4
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relation.isAuthorOfPublication71551dad-b487-4b88-bd0a-1a84a1f489e8
relation.isAuthorOfPublication.latestForDiscovery71551dad-b487-4b88-bd0a-1a84a1f489e8
sigepi.autor.atividadeFARIA JUNIOR, RUBENS N. de:227:730:Npt_BR
sigepi.autor.atividadeSAKATA, SOLANGE K.:7038:220:Npt_BR
sigepi.autor.atividadeSOBRINHO, LUIZA F.:10156:220:Npt_BR
sigepi.autor.atividadeGALEGO, EGUIBERTO:640:720:Npt_BR
sigepi.autor.atividadeSERNA, MARILENE M.:252:720:Npt_BR
sigepi.autor.atividadeBARBOSA, LUZINETE P.:1188:730:Npt_BR
sigepi.autor.atividadeCARDOSO, QUEZIA de A.:12720:730:Spt_BR
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