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dc.creatorCvetković, Vesna S.
dc.creatorFeldhaus, Dominic
dc.creatorVukićević, Nataša
dc.creatorMilićević-Neumann, Ksenija
dc.creatorBarudžija, Tanja S.
dc.creatorFriedrich, Bernd
dc.creatorJovićević, Jovan
dc.date.accessioned2022-11-03T07:17:29Z
dc.date.available2022-11-03T07:17:29Z
dc.date.issued2022
dc.identifier.issn2075-4701
dc.identifier.urihttps://cer.ihtm.bg.ac.rs/handle/123456789/5372
dc.description.abstractThe impact of rare earth oxide (REO) concentration on the deposition process and selective recovery of the metal being deposited from a molten fluoride salt system was investigated by applying deposition of Nd and Pr and varying the concentration of REO added to the electrolyte. A ternary phase diagram for the liquidus temperature of the NdF3-PrF3-LiF system was constructed to better predict the optimal electrolyte constitution. Cyclic voltammetry was used to record three redox signals, reflecting the processes involving Nd(III)/Nd and Pr(III)/Pr transformations. A two-step red/ox process for Nd(III) ions and a single-step red/ox process for Pr(III) ions were confirmed by square-wave voltammetry. The cyclic voltammetry results indicated the possibility of neodymium and praseodymium co-deposition. In order to sustain higher co-deposition rates on the cathode and to avoid increased production of PFC greenhouse gases on the anode, a low-overpotential deposition technique was used for Nd and Pr electrodeposition from the electrolyte with varying Nd2O3 and Pr6O11 concentrations. Co-deposited neodymium and praseodymium metals were characterized by electron probe microanalysis (EPMA) and X-ray diffraction (XRD) analysis. After electrodeposition, concentration profiles of neodymium and praseodymium were recorded, starting from the cathode surface towards the electrolyte bulk. The working temperature of 1050 °C of the molten fluoride salt basic electrolyte, in line with the constructed phase diagram, was validated by improved co-deposition and led to a more effective deposition process.sr
dc.language.isoensr
dc.publisherSwitzerland : Multidisciplinary Digital Publishing Institute (MDPI)sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS//sr
dc.relationThe German Academic Exchange Servicesr
dc.relationThe Ministry of Education, Science and Technological Development of the Republic of Serbiasr
dc.relationDeutscher Akademischer Austauschdienstsr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceMetalssr
dc.subjectco-depositionsr
dc.subjectEPMAsr
dc.subjectfluoride meltssr
dc.subjectNdsr
dc.subjectPrsr
dc.subjectternary phase diagramsr
dc.subjectXRDsr
dc.titleInfluence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Meltssr
dc.typearticlesr
dc.rights.licenseBYsr
dc.citation.volume12
dc.citation.issue7
dc.citation.spage1204
dc.citation.rankM21~
dc.identifier.doi10.3390/met12071204
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs/bitstream/id/22807/metals-12-01204-v2.pdf
dc.identifier.scopus2-s2.0-85137380145
dc.identifier.wos000833672500001
dc.type.versionpublishedVersionsr


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