Growth of vertically aligned carbon nanotubes on carbon fiber: thermal and electrochemical treatments

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dc.contributor.authorAlmeida, D. A. L.
dc.contributor.authorAntunes, E. F. [UNIFESP]
dc.contributor.authorSilva, V. Q. da
dc.contributor.authorBaldan, M. R.
dc.contributor.authorFerreira, N. G.
dc.contributor.institutionINPE
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:31:56Z
dc.date.available2016-01-24T14:31:56Z
dc.date.issued2013-07-01
dc.description.abstractComposite electrodes of vertically aligned carbon nanotubes (VACNT) were synthesized on carbon fiber (CF) substrate by pyrolysis of camphor/ferrocene using a SiO2 interlayer as a barrier against metal diffusion into the substrate. Two treatments were used to remove iron from CF/VACNT structure: thermal annealing at high temperature under inert atmosphere and electrochemical oxidation in H2SO4 solution. the composites were characterized by scanning electron microscopy and Raman scattering spectroscopy. Besides, the electrochemical behavior of CF/VACNT was analyzed by cyclic voltammetry and charge/discharge tests. CF/VACNT composite submitted to the electrochemical oxidation showed the best electrochemical performance, with high specific capacitance, which makes it very attractive as electrode for supercapacitors.en
dc.description.affiliationINPE, Lab Assoc Sensores & Mat, BR-12227010 São Paulo, Brazil
dc.description.affiliationUniversidade Federal de São Paulo UNIFESP, BR-12231280 São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo UNIFESP, BR-12231280 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIDFAPESP: 2009/17584-0
dc.format.extent1977-1984
dc.identifierhttp://dx.doi.org/10.1007/s10008-013-2052-0
dc.identifier.citationJournal of Solid State Electrochemistry. New York: Springer, v. 17, n. 7, p. 1977-1984, 2013.
dc.identifier.doi10.1007/s10008-013-2052-0
dc.identifier.issn1432-8488
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/36472
dc.identifier.wosWOS:000320888800022
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofJournal of Solid State Electrochemistry
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.subjectCarbon fiberen
dc.subjectCarbon nanotubeen
dc.subjectCompositeen
dc.subjectSupercapacitorsen
dc.titleGrowth of vertically aligned carbon nanotubes on carbon fiber: thermal and electrochemical treatmentsen
dc.typeinfo:eu-repo/semantics/article
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