TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša
AU  - Milićević-Neumann, Ksenija
AU  - Barudžija, Tanja S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5372
AB  - The 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.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Metals
T1  - Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts
VL  - 12
IS  - 7
SP  - 1204
DO  - 10.3390/met12071204
ER  - 

@article{
author = "Cvetković, Vesna S. and Feldhaus, Dominic and Vukićević, Nataša and Milićević-Neumann, Ksenija and Barudžija, Tanja S. and Friedrich, Bernd and Jovićević, Jovan",
year = "2022",
abstract = "The 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.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Metals",
title = "Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts",
volume = "12",
number = "7",
pages = "1204",
doi = "10.3390/met12071204"
}

Cvetković, V. S., Feldhaus, D., Vukićević, N., Milićević-Neumann, K., Barudžija, T. S., Friedrich, B.,& Jovićević, J.. (2022). Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts. in Metals
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 12(7), 1204.
https://doi.org/10.3390/met12071204

Cvetković VS, Feldhaus D, Vukićević N, Milićević-Neumann K, Barudžija TS, Friedrich B, Jovićević J. Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts. in Metals. 2022;12(7):1204.
doi:10.3390/met12071204 .

Cvetković, Vesna S., Feldhaus, Dominic, Vukićević, Nataša, Milićević-Neumann, Ksenija, Barudžija, Tanja S., Friedrich, Bernd, Jovićević, Jovan, "Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts" in Metals, 12, no. 7 (2022):1204,
https://doi.org/10.3390/met12071204 . .