Development of a new hybrid CNT-TEPA@poly(3,4-ethylenedioxythiophene-co-3-(pyrrol-1-methyl)pyridine) for application as electrode active material in supercapacitors

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dc.creatorGlenda Ribeiro de Barros Silveira Lacerda
dc.creatorGarbas Anacleto dos Santos Junior
dc.creatorMaria Luiza Miranda Rocco
dc.creatorRodrigo Lassarote Lavall
dc.creatorTulio Matencio
dc.creatorHállen Daniel Rezende Calado
dc.date.accessioned2023-08-11T13:30:13Z
dc.date.accessioned2025-09-09T00:30:54Z
dc.date.available2023-08-11T13:30:13Z
dc.date.issued2020
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.identifier.doihttps://doi.org/10.1016/j.polymer.2020.122368
dc.identifier.issn0032-3861
dc.identifier.urihttps://hdl.handle.net/1843/57730
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPolymer
dc.rightsAcesso Restrito
dc.subjectEletroquímica
dc.subjectSíntese
dc.subjectPolímeros conjugados
dc.subjectPolimerização
dc.subjectNanotubos de carbono
dc.subjectRaman, Espectroscopia de
dc.subjectFourier, Espectroscopia de infravermelho por transformada de
dc.subjectTermogravimetria
dc.subjectVoltametria
dc.subject.otherNanohybrid
dc.subject.otherConjugated polymers
dc.subject.otherSupercapacitors
dc.titleDevelopment of a new hybrid CNT-TEPA@poly(3,4-ethylenedioxythiophene-co-3-(pyrrol-1-methyl)pyridine) for application as electrode active material in supercapacitors
dc.typeArtigo de periódico
local.citation.volume194
local.description.resumoWe report the synthesis of a CNT-TEPA@PEPy hybrid material by the copolymerization of EDOT and Py analogs units covalently bonded to TEPA modified carbon nanotubes (CNTs). The chemical structure and morphology of the hybrid were compared to those of the unmodified CNTs using FTIR, Raman and XPS spectroscopies. The hybrid was applied as the electrode active material in symmetric supercapacitors (SCs) which were evaluated in aqueous and organic (acetonitrile) electrolytes to study the versatility of the as-synthesized CNT-TEPA@PEPy. The capacitances values of the cells obtained from the hybrid-based SCs are 56% and 115% higher than those of the cells prepared with the unmodified CNT in organic and aqueous electrolytes, respectively. The full cells assembled with CNT-TEPA@PEPy exhibited excellent cyclability with 81.3% and 77.5% of capacitance retention after 5000 cycles in aqueous and organic media, respectively. The device properties indicate the feasibility of the applied synthetic approach, showing that the prepared hybrid is a promising material for use in highly cyclable supercapacitors.
local.identifier.orcidhttps://orcid.org/0000-0002-8460-489
local.identifier.orcidhttps://orcid.org/0000-0001-6357-0033
local.identifier.orcidhttps://orcid.org/0000-0002-2746-8565
local.identifier.orcidhttps://orcid.org/0000-0003-1975-1827
local.identifier.orcidhttps://orcid.org/0000-0002-5660-8125
local.identifier.orcidhttps://orcid.org/0000-0002-4215-8848
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0032386120302056

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