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http://dx.doi.org/10.18419/opus-12336
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DC Element | Wert | Sprache |
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dc.contributor.author | Igreja Nascimento Mitre, Cirlei | - |
dc.contributor.author | Ferreira Gomes, Bruna | - |
dc.contributor.author | Paris, Elaine | - |
dc.contributor.author | Silva Lobo, Carlos Manuel | - |
dc.contributor.author | Roth, Christina | - |
dc.contributor.author | Colnago, Luiz Alberto | - |
dc.date.accessioned | 2022-08-25T15:31:22Z | - |
dc.date.available | 2022-08-25T15:31:22Z | - |
dc.date.issued | 2022 | - |
dc.identifier.issn | 2312-7481 | - |
dc.identifier.other | 1818926407 | - |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-123553 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/12355 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-12336 | - |
dc.description.abstract | 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 detectable 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. | en |
dc.language.iso | en | de |
dc.relation.uri | doi:10.3390/magnetochemistry8040040 | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | de |
dc.subject.ddc | 540 | de |
dc.title | Use of time domain nuclear magnetic resonance relaxometry to monitor the effect of magnetic field on the copper corrosion rate in real time | en |
dc.type | article | de |
dc.date.updated | 2022-06-21T15:56:25Z | - |
ubs.fakultaet | Chemie | de |
ubs.fakultaet | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.institut | Institut für Theoretische Chemie | de |
ubs.institut | Fakultätsübergreifend / Sonstige Einrichtung | de |
ubs.publikation.seiten | 10 | de |
ubs.publikation.source | Magnetochemistry 8 (2022), No. 40 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 03 Fakultät Chemie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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magnetochemistry-08-00040.pdf | 2,28 MB | Adobe PDF | Öffnen/Anzeigen |
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