Uranium electrodeposition using direct potential technique in less acidic aqueous media

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dc.contributor.authorSALIBA-SILVA, ADONIS M.
dc.contributor.authorOLIVEIRA, ENEAS T. de
dc.contributor.authorDURAZZO, MICHELANGELO
dc.coverageInternacionalpt_BR
dc.date.accessioned2015-08-19T18:00:25Z
dc.date.available2015-08-19T18:00:25Z
dc.date.issued2014pt_BR
dc.description.abstractElectrodeposition of uranium is a common practice to create samples for alpha spectrometry and it could be an alternative way to produce irradiation LEU targets to fabricate radiopharmaceuticals as 99Mo used for cancer diagnosis. Usually electrodeposition of uranium uses ionic or aqueous solutions to produce uranium deposits in less acidic electrolytes (pH>2.5). During uranium electrodeposition, there is a high competition with H2 evolution, once cathodic potentials are very high. In less acidic electrolyte the electrodeposition is uranyl hydroxyl and uranium oxides compounds, formed directly from uranyl (U-VI) structure. A reliable regression equation (R2=0.836) for alpha emission activity of uranium deposition was obtained, based on cell temperature and electrodeposition time. The deposition has oxide/hydroxide nature, acting as insulator during electrochemical process. The maximum level of deposited uranium, in terms of alpha activity, was around 34 Bq.cm-2 (-1.8 VAg/AgCl, 2000 s, 60°C). In this condition, the inferred maximum amount of uranium was ~5.4 mg [U] /cm2 , which might be interesting to build probe samples to simulate irradiation targets.
dc.format.extent1-8pt_BR
dc.identifier.citationSALIBA-SILVA, ADONIS M.; OLIVEIRA, ENEAS T. de; DURAZZO, MICHELANGELO. Uranium electrodeposition using direct potential technique in less acidic aqueous media. <b>ECS Transactions</b>, v. 61, n. 24, p. 1-8, 2014. DOI: <a href="https://dx.doi.org/10.1149/06124.0001ecst">10.1149/06124.0001ecst</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/23893.
dc.identifier.doi10.1149/06124.0001ecst
dc.identifier.fasciculo24pt_BR
dc.identifier.issn1938-5862pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2147-8295
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/23893
dc.identifier.vol61pt_BR
dc.relation.ispartofECS Transactionspt_BR
dc.rightsopenAccesspt_BR
dc.subjecturanium
dc.subjectelectrodeposition
dc.subjectsample preparation
dc.subjectalpha spectroscopy
dc.subjectslightly enriched uranium
dc.subjecttargets
dc.subjectradiopharmaceuticals
dc.subjectmolybdenum 99
dc.titleUranium electrodeposition using direct potential technique in less acidic aqueous mediapt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMICHELANGELO DURAZZO
ipen.autorENEAS TAVARES DE OLIVEIRA
ipen.autorADONIS MARCELO SALIBA SILVA
ipen.codigoautor90
ipen.codigoautor934
ipen.codigoautor961
ipen.contributor.ipenauthorMICHELANGELO DURAZZO
ipen.contributor.ipenauthorENEAS TAVARES DE OLIVEIRA
ipen.contributor.ipenauthorADONIS MARCELO SALIBA SILVA
ipen.date.recebimento15-08pt_BR
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc20929pt_BR
ipen.identifier.ods3
ipen.identifier.ods7
ipen.type.genreArtigo
relation.isAuthorOfPublication6596a057-886c-4d04-b5eb-ac1a38eb82a9
relation.isAuthorOfPublication069c5775-f657-4877-8f3a-00ec297987e2
relation.isAuthorOfPublication55d37ec2-5222-4be9-a5ff-da11e044f4ea
relation.isAuthorOfPublication.latestForDiscovery55d37ec2-5222-4be9-a5ff-da11e044f4ea
sigepi.autor.atividadeSALIBA-SILVA, ADONIS M.:961:410:S
sigepi.autor.atividadeOLIVEIRA, ENEAS T. DE:934:410:N
sigepi.autor.atividadeDURAZZO, MICHELANGELO:90:410:N
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