Higher electrical conductivity of functionalized graphene oxide doped with silver and copper (II) ions
| dc.contributor.author | PEREIRA, NELSON G.A. | pt_BR |
| dc.contributor.author | GONZALEZ, MARIA E.L. | pt_BR |
| dc.contributor.author | QUEIROZ, ALVARO A.A. de | pt_BR |
| dc.contributor.author | OLIVEIRA, ADHIMAR F. | pt_BR |
| dc.contributor.author | WANDERLEY NETO, ESTACIO T. | pt_BR |
| dc.coverage | Internacional | |
| dc.date.accessioned | 2023-12-04T14:56:32Z | |
| dc.date.available | 2023-12-04T14:56:32Z | |
| dc.date.issued | 2023 | pt_BR |
| dc.description.abstract | This study presents a new methodology for graphene oxide (GO) synthesis through electrochemical exfoliation of graphite, followed by phthalic anhydride functionalization (PhA-GO) and doping with Cu2+ and Ag+ ions. The synthesis of GO involved the use of an electrochemical cell with H2 SO4 as the electrolyte, with a gradual increase in potential from 2.3 V to 10 V. Extensive characterization techniques confirmed the successful incorporation of oxygen-containing functional groups, verifying the oxidation of graphite. PhA-GO functionalization was confirmed by thermogravimetric analysis, Differential Scanning Calorimetry, Fourier-transform infrared spectroscopy (FTIR), UV-Vis spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDX), which confirmed the presence of Cu2+ and Ag+ ions. The Scherrer equation determined a grain size of 75.85 nm for GO. The electrical properties exhibited semiconductor and semimetal behavior, particularly in PhA-GO/Ag+ composites, making them suitable for electronic devices over a wide temperature range, presenting a promising pathway for advanced materials in electronic applications. | pt_BR |
| dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) | pt_BR |
| dc.description.sponsorshipID | FAPEMIG: APQ-02676-16; APQ-00010-18 | pt_BR |
| dc.format.extent | 1-16 | pt_BR |
| dc.identifier.citation | PEREIRA, NELSON G.A.; GONZALEZ, MARIA E.L.; QUEIROZ, ALVARO A.A. de; OLIVEIRA, ADHIMAR F.; WANDERLEY NETO, ESTACIO T. Higher electrical conductivity of functionalized graphene oxide doped with silver and copper (II) ions. <b>Energies</b>, v. 16, n. 20, p. 1-16, 2023. DOI: <a href="https://dx.doi.org/10.3390/en16207019">10.3390/en16207019</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/34232. | |
| dc.identifier.doi | 10.3390/en16207019 | pt_BR |
| dc.identifier.fasciculo | 20 | pt_BR |
| dc.identifier.issn | 1996-1073 | |
| dc.identifier.percentilfi | 37.4 | |
| dc.identifier.percentilfiCiteScore | 73.00 | |
| dc.identifier.uri | http://repositorio.ipen.br/handle/123456789/34232 | |
| dc.identifier.vol | 16 | pt_BR |
| dc.relation.ispartof | Energies | |
| dc.rights | openAccess | pt_BR |
| dc.subject | graphene | |
| dc.subject | oxides | |
| dc.subject | electrochemistry | |
| dc.subject | crystal doping | |
| dc.subject | electric conductivity | |
| dc.title | Higher electrical conductivity of functionalized graphene oxide doped with silver and copper (II) ions | pt_BR |
| dc.type | Artigo de periódico | pt_BR |
| dspace.entity.type | Publication | |
| ipen.autor | ÁLVARO ANTONIO ALENCAR DE QUEIROZ | |
| ipen.codigoautor | 7319 | |
| ipen.contributor.ipenauthor | ÁLVARO ANTONIO ALENCAR DE QUEIROZ | |
| ipen.date.recebimento | 23-12 | |
| ipen.identifier.fi | 3.0 | |
| ipen.identifier.fiCiteScore | 6.2 | |
| ipen.identifier.ipendoc | 29864 | |
| ipen.range.fi | 3.000 - 4.499 | |
| ipen.range.percentilfi | 25.00 - 49.99 | |
| ipen.type.genre | Artigo | |
| relation.isAuthorOfPublication | e7d5bfcd-02bd-4e2a-8b3a-b4a56eb4cdfa | |
| relation.isAuthorOfPublication.latestForDiscovery | e7d5bfcd-02bd-4e2a-8b3a-b4a56eb4cdfa | |
| sigepi.autor.atividade | QUEIROZ, ALVARO A.A. de:7319:-1:N | pt_BR |