TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša M.
AU  - Milićević-Neumann, Ksenija
AU  - Barudžija, Tanja
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10416
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.
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 M. and Milićević-Neumann, Ksenija and Barudžija, Tanja and Friedrich, Bernd and Jovićević, Jovan N.",
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.",
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. M., Milićević-Neumann, K., Barudžija, T., Friedrich, B.,& Jovićević, J. N.. (2022). Influence of Rare Earth Oxide Concentration on Electrochemical
Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts. in Metals, 12(7), 1204.
https://doi.org/10.3390/met12071204

Cvetković VS, Feldhaus D, Vukićević NM, Milićević-Neumann K, Barudžija T, Friedrich B, Jovićević JN. 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 M., Milićević-Neumann, Ksenija, Barudžija, Tanja, Friedrich, Bernd, Jovićević, Jovan N., "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 . .

TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša M.
AU  - Feldhaus, Dominic
AU  - Milićević-Neumann, Ksenija
AU  - Barudžija, Tanja
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9522
AB  - The Al-V alloys were synthetized by potentiostatic electrodeposition onto a glassy carbon electrode from equimolar AlCl3 + NaCl bath containing vanadium ions at 200 °C. The alloy deposits were characterized by X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy. The deposits were identified as Al3V and AlV3 alloys. It was found that intermetallic alloys were synthetized during aluminium underpotential deposition onto vanadium metal that was previously deposited on the glassy carbon electrode by diffusion-controlled overpotential deposition. Alloys were the result of solid-state interdiffusion between the initially deposited vanadium and the subsequently deposited aluminium. As a source to secure a constant concentration of vanadium in the electrolyte during deposition, vanadium anodic dissolution, and VCl3 melt addition were studied. The effect of vanadium ion concentration in the electrolyte on the composition and the surface morphology of the obtained deposits was investigated. The results indicate that controlled vanadium and aluminium codeposition could be a further step to the successful development of an advanced technology for Al3V and AlV3 alloy synthesis.
T2  - Metals
T1  - Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions
VL  - 11
IS  - 1
SP  - 123
DO  - 10.3390/met11010123
ER  - 

@article{
author = "Cvetković, Vesna S. and Vukićević, Nataša M. and Feldhaus, Dominic and Milićević-Neumann, Ksenija and Barudžija, Tanja and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2021",
abstract = "The Al-V alloys were synthetized by potentiostatic electrodeposition onto a glassy carbon electrode from equimolar AlCl3 + NaCl bath containing vanadium ions at 200 °C. The alloy deposits were characterized by X-ray diffraction, scanning electron microscopy, and energy dispersive spectroscopy. The deposits were identified as Al3V and AlV3 alloys. It was found that intermetallic alloys were synthetized during aluminium underpotential deposition onto vanadium metal that was previously deposited on the glassy carbon electrode by diffusion-controlled overpotential deposition. Alloys were the result of solid-state interdiffusion between the initially deposited vanadium and the subsequently deposited aluminium. As a source to secure a constant concentration of vanadium in the electrolyte during deposition, vanadium anodic dissolution, and VCl3 melt addition were studied. The effect of vanadium ion concentration in the electrolyte on the composition and the surface morphology of the obtained deposits was investigated. The results indicate that controlled vanadium and aluminium codeposition could be a further step to the successful development of an advanced technology for Al3V and AlV3 alloy synthesis.",
journal = "Metals",
title = "Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions",
volume = "11",
number = "1",
pages = "123",
doi = "10.3390/met11010123"
}

Cvetković, V. S., Vukićević, N. M., Feldhaus, D., Milićević-Neumann, K., Barudžija, T., Friedrich, B.,& Jovićević, J. N.. (2021). Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions. in Metals, 11(1), 123.
https://doi.org/10.3390/met11010123

Cvetković VS, Vukićević NM, Feldhaus D, Milićević-Neumann K, Barudžija T, Friedrich B, Jovićević JN. Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions. in Metals. 2021;11(1):123.
doi:10.3390/met11010123 .

Cvetković, Vesna S., Vukićević, Nataša M., Feldhaus, Dominic, Milićević-Neumann, Ksenija, Barudžija, Tanja, Friedrich, Bernd, Jovićević, Jovan N., "Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions" in Metals, 11, no. 1 (2021):123,
https://doi.org/10.3390/met11010123 . .