Physical-chemical effects of nanoparticles on electropolymerized polyaniline.

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dc.contributor.authorCarvalho Júnior, José Agenor
dc.contributor.authorBarboza, Ana Paula Moreira
dc.contributor.authorMachado, Giovanna
dc.contributor.authorNeves, Bernardo Ruegger Almeida
dc.contributor.authorOliveira, Alan Barros de
dc.contributor.authorBatista, Ronaldo Junio Campos
dc.contributor.authorAraújo, Fernando Gabriel da Silva
dc.contributor.authorSoares, Jaqueline dos Santos
dc.contributor.authorManhabosco, Taíse Matte
dc.date.accessioned2023-01-26T19:54:55Z
dc.date.available2023-01-26T19:54:55Z
dc.date.issued2021pt_BR
dc.description.abstractThe incorporation of nanoparticles on polymer films is possible to obtain materials with desired properties. In the present work, we address the physical-chemical influence of nanoparticles in polymer films by producing and characterizing polyaniline hybrids with SiO2 and Au nanoparticles and comparing them with films with TiO2 nanoparticles. The hybrid films were characterized by SEM, EDS, UV-Vis, AFM, Raman, and cyclic voltammetry. Unlike TiO2 nanoparticles, SiO2 and Au nanoparticles do not promote any noticeable change in polyaniline oxidation state in less acid environments (pH 5.9 and 6.15). However, in those environments, the presence of nanoparticles significantly increases the film's conductivity. At a pH of 1.5 and 3.9, all three kinds of nanoparticles are screened by ions from the solution diminishing their physical-chemical effects on polyaniline. Thus, our results suggest that, in general, nanoparticles don't have any physical-chemical effects on polyaniline films when deposited in acid enough environments but can change their physical and chemical properties when deposited in less acid environments.pt_BR
dc.identifier.citationCARVALHO JÚNIOR, J. A. et al. Physical-chemical effects of nanoparticles on electropolymerized polyaniline. Biointerface Research in Applied Chemistry, v. 12, n. 5, p. 5996-6009, 2021. Disponível em: <https://biointerfaceresearch.com/wp-content/uploads/2021/11/20695837125.59966009.pdf>. Acesso em: 06 jul. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.33263/BRIAC125.59966009pt_BR
dc.identifier.issn2069-5837
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/16063
dc.identifier.uri2https://biointerfaceresearch.com/wp-content/uploads/2021/11/20695837125.59966009.pdfpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectElectrochemistrypt_BR
dc.subjectRamanpt_BR
dc.titlePhysical-chemical effects of nanoparticles on electropolymerized polyaniline.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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