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http://www.alice.cnptia.embrapa.br/alice/handle/doc/1141768Registro completo de metadados
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | MITRE, C. I. N. | |
| dc.contributor.author | PARIS, E. C. | |
| dc.contributor.author | LOBO, C. M. S. | |
| dc.contributor.author | ROTH, C. | |
| dc.contributor.author | COLNAGO, L. A. | |
| dc.date.accessioned | 2022-04-13T11:00:52Z | - |
| dc.date.available | 2022-04-13T11:00:52Z | - |
| dc.date.created | 2022-04-04 | |
| dc.date.issued | 2022 | |
| dc.identifier.citation | Magneto Chemistry, v. 8, 40, 2022. | |
| dc.identifier.issn | 2312-7481 | eng |
| dc.identifier.uri | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1141768 | - |
| dc.description | The corrosion of metals is a major problem of modern societies, demanding new technologies and studies to understand and minimize it. Here we evaluated the effect of a magnetic field (B) on the corrosion of copper in aqueous HCl solution under open circuit potential. The corrosion product, Cu2+, is a paramagnetic ion and its concentration in the solution was determined in real time in the corrosion cell by time-domain NMR relaxometry. The results show that the magnetic field (B = 0.23 T) of the time-domain NMR instrument reduces the corrosion rate by almost 50%, in comparison to when the corrosion reaction is performed in the absence of B. Atomic force microscopy and X-ray diffraction results of the analysis of the corroded surfaces reveal a detect-able CuCl phase and an altered morphology when B is present. The protective effect of B was explained by magnetic forces that maintain the Cu2+ in the solution/metal interface for a longer time, hindering the arrival of the new corrosive agents, and leading to the formation of a CuCl phase, which may contribute to the rougher surface. The time-domain NMR method proved to be useful to study the effect of B in the corrosion of other metals or other corrosive liquid media when the reactions produce or consume paramagnetic ions. | |
| dc.language.iso | eng | |
| dc.rights | openAccess | |
| dc.subject | Copper corrosion | |
| dc.subject | Time-domain NMR relaxometry | |
| dc.subject | Magnetocorrosion | |
| dc.title | Use of time domain nuclear magnetic resonance relaxometry to monitor the rffect of magnetic field on the copper corrosion rate in real time. | |
| dc.type | Artigo de periódico | |
| dc.format.extent2 | 11 p. | |
| riaa.ainfo.id | 1141768 | |
| riaa.ainfo.lastupdate | 2022-04-12 | |
| dc.identifier.doi | 10.3390/magnetochemistry800040 | |
| dc.contributor.institution | ELAINE CRISTINA PARIS, CNPDIA; LUIZ ALBERTO COLNAGO, CNPDIA. | |
| Aparece nas coleções: | Artigo em periódico indexado (CNPDIA)  | |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| P-Use-of-time-domain-nuclear-magnetic-resonance-relaxometry-....pdf | 3,68 MB | Adobe PDF |  Visualizar/Abrir |
