Feldhaus, Dominic

Link to this page

Authority KeyName Variants
orcid::0000-0003-0313-0145
  • Feldhaus, Dominic (12)
Projects
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) Bilateral research project (ID: 451-03-01971/201809/4) supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia and German Academic Exchange Service (DAAD)
DAAD ID: 337-00-19/2023-01/5 Ministry of Education, Science and Technological Development of the Republic of Serbia and Deutsche Akademische Austausch Dienst Germany (DAAD), bilateral project (ID: 451-0301344/2020-09/8)
DAAD ID: 451-03-01344/2020-09/8 Deutscher Akademischer Austauschdienst
Federal Ministry for Economic Affairs and Climate Action, grant number 273 EN Ministry of Education, Science and Technological Development of the Republic of Serbia
Ministry of Education, Science and Technological Development of the Republic of Serbia and German Academic Exchange Service (DAAD) - bilateral project (451-03-01971/2018-09/4) Ministry of Education, Science and Technological Development of the Republic of Serbia and German Academic Exchange Service (DAAD) -Bilateral research project (ID:451-03- 01344/2020-09/8)
Project “Sustainable recovery of rare earth elements (Nd, Pr, Dy) from spent magnets” The bilateral research project (ID: 451-03-01344/2020-09/8)
The German Academic Exchange Service The Ministry of Education, Science and Technological Development of the Republic of Serbia

Author's Bibliography

Advances in Understanding Metal Electrolysis Process

Friedrich, Bernd; Jovićević, Jovan; Feldhaus, Dominic; Cvetković, Vesna S.

(Switzerland : Multidisciplinary Digital Publishing Institute (MDPI), 2023)

TY  - JOUR
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan
AU  - Feldhaus, Dominic
AU  - Cvetković, Vesna S.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5788
AB  - Advancements in technologies related to the electrorefining and electrodeposition
of metals—as important manufacturing process steps—continue to receive significant
attention. Specifically, novel ideas that focus on the development of new approaches
to the electrochemical synthesis of alloys and composites are important for advancing
technologies that can promote increased supply sustainability in the future. This Special
Issue, “Advances in understanding metal electrolysis process”, aims at the fundamental
level of research with respect to novel approaches in areas of electrolysis and electrochemical
mechanisms as well as their impact on the efficiency and quality of metal deposition. It
consists of ten papers addressing various issues and their possible solutions around the
electrolysis/-deposition of aluminum, copper, indium, rare earth metals, and their alloys,
including Zn-Co coatings. One review paper provides an overview of the structure of metal
powders produced by electrochemical methods.
PB  - Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)
T2  - Metals
T1  - Advances in Understanding Metal Electrolysis Process
VL  - 13
IS  - 2
SP  - 307
DO  - 10.3390/met13020307
ER  - 
@article{
author = "Friedrich, Bernd and Jovićević, Jovan and Feldhaus, Dominic and Cvetković, Vesna S.",
year = "2023",
abstract = "Advancements in technologies related to the electrorefining and electrodeposition
of metals—as important manufacturing process steps—continue to receive significant
attention. Specifically, novel ideas that focus on the development of new approaches
to the electrochemical synthesis of alloys and composites are important for advancing
technologies that can promote increased supply sustainability in the future. This Special
Issue, “Advances in understanding metal electrolysis process”, aims at the fundamental
level of research with respect to novel approaches in areas of electrolysis and electrochemical
mechanisms as well as their impact on the efficiency and quality of metal deposition. It
consists of ten papers addressing various issues and their possible solutions around the
electrolysis/-deposition of aluminum, copper, indium, rare earth metals, and their alloys,
including Zn-Co coatings. One review paper provides an overview of the structure of metal
powders produced by electrochemical methods.",
publisher = "Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)",
journal = "Metals",
title = "Advances in Understanding Metal Electrolysis Process",
volume = "13",
number = "2",
pages = "307",
doi = "10.3390/met13020307"
}
Friedrich, B., Jovićević, J., Feldhaus, D.,& Cvetković, V. S.. (2023). Advances in Understanding Metal Electrolysis Process. in Metals
Switzerland : Multidisciplinary Digital Publishing Institute (MDPI)., 13(2), 307.
https://doi.org/10.3390/met13020307
Friedrich B, Jovićević J, Feldhaus D, Cvetković VS. Advances in Understanding Metal Electrolysis Process. in Metals. 2023;13(2):307.
doi:10.3390/met13020307 .
Friedrich, Bernd, Jovićević, Jovan, Feldhaus, Dominic, Cvetković, Vesna S., "Advances in Understanding Metal Electrolysis Process" in Metals, 13, no. 2 (2023):307,
https://doi.org/10.3390/met13020307 . .

Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part)

Chung, Hanwen; Prasakti, Laras; Stopić, Srećko; Feldhaus, Dominic; Cvetković, Vesna S.; Friedrich, Bernd

(MDPI, 2023)

TY  - JOUR
AU  - Chung, Hanwen
AU  - Prasakti, Laras
AU  - Stopić, Srećko
AU  - Feldhaus, Dominic
AU  - Cvetković, Vesna S.
AU  - Friedrich, Bernd
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6107
AB  - The results obtained from the work on a concept of a recycling process for NdFeB magnets
to recover rare earth elements for remanufacturing similar magnets are presented. This paper
investigates the viability of extracting rare earth metals from magnet recycling-derived oxide (MRDO) by means of molten salt electrolysis. The MRDO was produced from spent NdFeB magnets through oxidation in air and subsequently carbothermic reduction under an 80 mbar Ar gas atmosphere. This MRDO contained roughly 33 wt.% Nd and 10 wt.% Pr. The electrochemical reduction process of the MRDO on molybdenum electrodes in NdF3 + LiF and NdF3 + PrF3 + LiF fused salts systems was investigated by cyclic voltammetry and chronoamperometry measurements. The resulting electrolytes and electrodes were examined after potentiostatic deposition by scanning electron microscopy (SEM), inductively coupled plasma optical emission spectroscopy (ICP-OES), and X-ray diffraction (XRD) analysis. The electrodeposited metals appeared to accumulate on the cathode and X-ray diffraction analysis confirmed the formation of metallic Nd and Pr on the working substrate. The suitability of the obtained alloy intended for the remanufacturing of NdFeB magnets was then evaluated.
PB  - MDPI
T2  - Metals
T1  - Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part)
VL  - 13
IS  - 3
SP  - 559
DO  - https://doi.org/10.3390/met13030559
ER  - 
@article{
author = "Chung, Hanwen and Prasakti, Laras and Stopić, Srećko and Feldhaus, Dominic and Cvetković, Vesna S. and Friedrich, Bernd",
year = "2023",
abstract = "The results obtained from the work on a concept of a recycling process for NdFeB magnets
to recover rare earth elements for remanufacturing similar magnets are presented. This paper
investigates the viability of extracting rare earth metals from magnet recycling-derived oxide (MRDO) by means of molten salt electrolysis. The MRDO was produced from spent NdFeB magnets through oxidation in air and subsequently carbothermic reduction under an 80 mbar Ar gas atmosphere. This MRDO contained roughly 33 wt.% Nd and 10 wt.% Pr. The electrochemical reduction process of the MRDO on molybdenum electrodes in NdF3 + LiF and NdF3 + PrF3 + LiF fused salts systems was investigated by cyclic voltammetry and chronoamperometry measurements. The resulting electrolytes and electrodes were examined after potentiostatic deposition by scanning electron microscopy (SEM), inductively coupled plasma optical emission spectroscopy (ICP-OES), and X-ray diffraction (XRD) analysis. The electrodeposited metals appeared to accumulate on the cathode and X-ray diffraction analysis confirmed the formation of metallic Nd and Pr on the working substrate. The suitability of the obtained alloy intended for the remanufacturing of NdFeB magnets was then evaluated.",
publisher = "MDPI",
journal = "Metals",
title = "Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part)",
volume = "13",
number = "3",
pages = "559",
doi = "https://doi.org/10.3390/met13030559"
}
Chung, H., Prasakti, L., Stopić, S., Feldhaus, D., Cvetković, V. S.,& Friedrich, B.. (2023). Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part). in Metals
MDPI., 13(3), 559.
https://doi.org/https://doi.org/10.3390/met13030559
Chung H, Prasakti L, Stopić S, Feldhaus D, Cvetković VS, Friedrich B. Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part). in Metals. 2023;13(3):559.
doi:https://doi.org/10.3390/met13030559 .
Chung, Hanwen, Prasakti, Laras, Stopić, Srećko, Feldhaus, Dominic, Cvetković, Vesna S., Friedrich, Bernd, "Recovery of Rare Earth Elements from Spent NdFeB Magnets: Metal Extraction by Molten Salt Electrolysis (Third Part)" in Metals, 13, no. 3 (2023):559,
https://doi.org/https://doi.org/10.3390/met13030559 . .

Greenhouse gas emission from the rare earth metals electrolysis

Cvetković, Vesna S.; Petrović, Nataša M.; Feldhaus, Dominic; Prasakti, Laras; Friedrich, Bernd; Jovićević, Jovan N.

(Skopje : Society of chemists and technologists of Macedonia, 2023)

TY  - CONF
AU  - Cvetković, Vesna S.
AU  - Petrović, Nataša M.
AU  - Feldhaus, Dominic
AU  - Prasakti, Laras
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6756
AB  - In the present work, we investigated the off-gas emission during the Nd and Pr electrodeposition from oxy- fluoride melts by the in-situ FTIR-spectrometry to understand the nature of the reactions taking place on the anode and the mechanisms behind them.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia
T1  - Greenhouse gas emission from the rare earth metals electrolysis
SP  - 141
EP  - 141
UR  - https://hdl.handle.net/21.15107/rcub_cer_6756
ER  - 
@conference{
author = "Cvetković, Vesna S. and Petrović, Nataša M. and Feldhaus, Dominic and Prasakti, Laras and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2023",
abstract = "In the present work, we investigated the off-gas emission during the Nd and Pr electrodeposition from oxy- fluoride melts by the in-situ FTIR-spectrometry to understand the nature of the reactions taking place on the anode and the mechanisms behind them.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia",
title = "Greenhouse gas emission from the rare earth metals electrolysis",
pages = "141-141",
url = "https://hdl.handle.net/21.15107/rcub_cer_6756"
}
Cvetković, V. S., Petrović, N. M., Feldhaus, D., Prasakti, L., Friedrich, B.,& Jovićević, J. N.. (2023). Greenhouse gas emission from the rare earth metals electrolysis. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia
Skopje : Society of chemists and technologists of Macedonia., 141-141.
https://hdl.handle.net/21.15107/rcub_cer_6756
Cvetković VS, Petrović NM, Feldhaus D, Prasakti L, Friedrich B, Jovićević JN. Greenhouse gas emission from the rare earth metals electrolysis. in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia. 2023;:141-141.
https://hdl.handle.net/21.15107/rcub_cer_6756 .
Cvetković, Vesna S., Petrović, Nataša M., Feldhaus, Dominic, Prasakti, Laras, Friedrich, Bernd, Jovićević, Jovan N., "Greenhouse gas emission from the rare earth metals electrolysis" in Book of abstracts - 26th Congress of Chemists and Technologysts of Macedonia, 20–23 September 2023, Metropol Lake Resort Ohrid, N. Macedonia (2023):141-141,
https://hdl.handle.net/21.15107/rcub_cer_6756 .

Influence of Rare Earth Oxide Concentration on Electrochemical Co-Deposition of Nd and Pr from NdF3-PrF3-LiF Based Melts

Cvetković, Vesna S.; Feldhaus, Dominic; Vukićević, Nataša; Milićević-Neumann, Ksenija; Barudžija, Tanja S.; Friedrich, Bernd; Jovićević, Jovan

(Switzerland : Multidisciplinary Digital Publishing Institute (MDPI), 2022)

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 . .
1
3
4

The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts

Feldhaus, Dominic; Vukićević, Nataša; Cvetković, Vesna S.; Friedrich, Bernd; Jovićević, Jovan

(International Society of Electrochemistry, 2022)

TY  - CONF
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša
AU  - Cvetković, Vesna S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5847
AB  - In this work, the electrochemical reduction of Nd (III) and Pr(III) ions and consequent deposition 
of these metals from NdF3-PrF3-LiF molten salts containing rare earth oxides at 1050 °C on tungsten substrate was investigated. Additionally, the Nd and Pr ions electroreduction processes were studied by cyclic and square wave voltammetry, in the electrolytes with a concentration of rare earth oxides (REO) changed from 0.5wt% to 2wt%.
PB  - International Society of Electrochemistry
C3  - Program of the 31th Topical Meeting of the International Society of Electrochemistry, "Theory and Computation in Electrochemistry:  Seeking Synergies in Methods, Materials and Systems," 15-19 May 2022  Aachen, Germany
T1  - The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts
UR  - https://hdl.handle.net/21.15107/rcub_cer_5847
ER  - 
@conference{
author = "Feldhaus, Dominic and Vukićević, Nataša and Cvetković, Vesna S. and Friedrich, Bernd and Jovićević, Jovan",
year = "2022",
abstract = "In this work, the electrochemical reduction of Nd (III) and Pr(III) ions and consequent deposition 
of these metals from NdF3-PrF3-LiF molten salts containing rare earth oxides at 1050 °C on tungsten substrate was investigated. Additionally, the Nd and Pr ions electroreduction processes were studied by cyclic and square wave voltammetry, in the electrolytes with a concentration of rare earth oxides (REO) changed from 0.5wt% to 2wt%.",
publisher = "International Society of Electrochemistry",
journal = "Program of the 31th Topical Meeting of the International Society of Electrochemistry, "Theory and Computation in Electrochemistry:  Seeking Synergies in Methods, Materials and Systems," 15-19 May 2022  Aachen, Germany",
title = "The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts",
url = "https://hdl.handle.net/21.15107/rcub_cer_5847"
}
Feldhaus, D., Vukićević, N., Cvetković, V. S., Friedrich, B.,& Jovićević, J.. (2022). The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts. in Program of the 31th Topical Meeting of the International Society of Electrochemistry, "Theory and Computation in Electrochemistry:  Seeking Synergies in Methods, Materials and Systems," 15-19 May 2022  Aachen, Germany
International Society of Electrochemistry..
https://hdl.handle.net/21.15107/rcub_cer_5847
Feldhaus D, Vukićević N, Cvetković VS, Friedrich B, Jovićević J. The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts. in Program of the 31th Topical Meeting of the International Society of Electrochemistry, "Theory and Computation in Electrochemistry:  Seeking Synergies in Methods, Materials and Systems," 15-19 May 2022  Aachen, Germany. 2022;.
https://hdl.handle.net/21.15107/rcub_cer_5847 .
Feldhaus, Dominic, Vukićević, Nataša, Cvetković, Vesna S., Friedrich, Bernd, Jovićević, Jovan, "The study of Nd(III) and Pr(III) electrochemical reduction in molten fluoride salts" in Program of the 31th Topical Meeting of the International Society of Electrochemistry, "Theory and Computation in Electrochemistry:  Seeking Synergies in Methods, Materials and Systems," 15-19 May 2022  Aachen, Germany (2022),
https://hdl.handle.net/21.15107/rcub_cer_5847 .

Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts

Vukićević, Nataša; Feldhaus, Dominic; Cvetković, Vesna S.; Friedrich, Bernd; Jovićević, Jovan

(Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM, 2022)

TY  - CONF
AU  - Vukićević, Nataša
AU  - Feldhaus, Dominic
AU  - Cvetković, Vesna S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5848
AB  - In the present study we aim to provide an understanding of the electrochemical behaviour of neodymium and praseodymium in the fluoride based melts composition containing different LiF concentration. Comparison of the experimental results obtained from chosen electrolyte systems, should enable to precisely incorporate adjustable parameters which could favor more deposited neodymium and praseodymium metal remaining on an inert working substrate.
AB  - U ovom radu ispitivali smo elektrohemijsko ponašanje neodijuma i prazeodijuma u elektrolitima na bazi fluorida sa različitim koncentracijama LiF. Poređenje dobijenih eksperimentalnih rezultata iz izabranih elektrolita, trebalo bi da nam omogući optimizaciju parametara koji bi favorizovali veći prinos neodijuma i prazeodijuma na inertnoj radnoj elektrodi.
PB  - Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM
C3  - Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare
T1  - Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts
SP  - poster 87
UR  - https://hdl.handle.net/21.15107/rcub_cer_5848
ER  - 
@conference{
author = "Vukićević, Nataša and Feldhaus, Dominic and Cvetković, Vesna S. and Friedrich, Bernd and Jovićević, Jovan",
year = "2022",
abstract = "In the present study we aim to provide an understanding of the electrochemical behaviour of neodymium and praseodymium in the fluoride based melts composition containing different LiF concentration. Comparison of the experimental results obtained from chosen electrolyte systems, should enable to precisely incorporate adjustable parameters which could favor more deposited neodymium and praseodymium metal remaining on an inert working substrate., U ovom radu ispitivali smo elektrohemijsko ponašanje neodijuma i prazeodijuma u elektrolitima na bazi fluorida sa različitim koncentracijama LiF. Poređenje dobijenih eksperimentalnih rezultata iz izabranih elektrolita, trebalo bi da nam omogući optimizaciju parametara koji bi favorizovali veći prinos neodijuma i prazeodijuma na inertnoj radnoj elektrodi.",
publisher = "Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM",
journal = "Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare",
title = "Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts",
pages = "poster 87",
url = "https://hdl.handle.net/21.15107/rcub_cer_5848"
}
Vukićević, N., Feldhaus, D., Cvetković, V. S., Friedrich, B.,& Jovićević, J.. (2022). Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts. in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare
Beograd : Udruženje inženjera Srbije za koroziju i zaštitu materijala UISKOZAM., poster 87.
https://hdl.handle.net/21.15107/rcub_cer_5848
Vukićević N, Feldhaus D, Cvetković VS, Friedrich B, Jovićević J. Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts. in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare. 2022;:poster 87.
https://hdl.handle.net/21.15107/rcub_cer_5848 .
Vukićević, Nataša, Feldhaus, Dominic, Cvetković, Vesna S., Friedrich, Bernd, Jovićević, Jovan, "Electrochemical co-deposition of neodymium and praseodymium from oxyfluoride molten salts" in Proceedings - XXIII YuCorr International Conference, "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection", May 16-19, 2022, Divčibare, Serbia / Knjiga radova - XXIII YuCorr Međunarodna konferencija, "Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine", 16-19 Maj, 2022, Divčibare (2022):poster 87,
https://hdl.handle.net/21.15107/rcub_cer_5848 .

Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides

Cvetković, Vesna S.; Feldhaus, Dominic; Vukićević, Nataša; Barudžija, Tanja S.; Friedrich, Bernd; Jovićević, Jovan N.

(MDPI, 2021)

TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša
AU  - Barudžija, Tanja S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4768
AB  - Electrodeposition processes of neodymium and praseodymium in molten NdF3 + PrF3 + LiF + 1 wt.%Pr6O11 + 1 wt.%Nd2O3 and NdF3 + PrF3 + LiF + 2 wt.%Pr6O11 + 2 wt.%Nd2O3 electrolytes at 1323 K were investigated. Cyclic voltammetry, square wave voltammetry, and open circuit potentiometry were applied to study the electrochemical reduction of Nd(III) and Pr(III) ions on Mo and W cathodes. It was established that a critical condition for Nd and Pr co-deposition in oxyfluoride electrolytes was a constant praseodymium deposition overpotential of ≈−0.100 V, which was shown to result in co-deposition current densities approaching 6 mAcm−2 . Analysis of the results obtained by applied electrochemical techniques showed that praseodymium deposition proceeds as a one-step process involving exchange of three electrons (Pr(III)→Pr(0)) and that neodymium deposition is a two-step process: the first involves one electron exchange (Nd(III)→Nd(II)), and the second involves an exchange of two electrons (Nd(II)→Nd(0)). X-ray diffraction analyses confirmed the formation of metallic Nd and Pr on the working substrate. Keeping the anodic potential to the glassy carbon working anode low results in very low levels of carbon oxides, fluorine and fluorocarbon gas emissions, which should qualify the studied system as an environmentally friendly option for rare earth metal deposition. The newly reported data for Nd and Pr metals co-deposition provide valuable information for the recycling of neodymium-iron-boron magnets.
PB  - MDPI
T2  - Metals
T1  - Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides
VL  - 11
IS  - 9
SP  - 1494
DO  - 10.3390/met11091494
ER  - 
@article{
author = "Cvetković, Vesna S. and Feldhaus, Dominic and Vukićević, Nataša and Barudžija, Tanja S. and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2021",
abstract = "Electrodeposition processes of neodymium and praseodymium in molten NdF3 + PrF3 + LiF + 1 wt.%Pr6O11 + 1 wt.%Nd2O3 and NdF3 + PrF3 + LiF + 2 wt.%Pr6O11 + 2 wt.%Nd2O3 electrolytes at 1323 K were investigated. Cyclic voltammetry, square wave voltammetry, and open circuit potentiometry were applied to study the electrochemical reduction of Nd(III) and Pr(III) ions on Mo and W cathodes. It was established that a critical condition for Nd and Pr co-deposition in oxyfluoride electrolytes was a constant praseodymium deposition overpotential of ≈−0.100 V, which was shown to result in co-deposition current densities approaching 6 mAcm−2 . Analysis of the results obtained by applied electrochemical techniques showed that praseodymium deposition proceeds as a one-step process involving exchange of three electrons (Pr(III)→Pr(0)) and that neodymium deposition is a two-step process: the first involves one electron exchange (Nd(III)→Nd(II)), and the second involves an exchange of two electrons (Nd(II)→Nd(0)). X-ray diffraction analyses confirmed the formation of metallic Nd and Pr on the working substrate. Keeping the anodic potential to the glassy carbon working anode low results in very low levels of carbon oxides, fluorine and fluorocarbon gas emissions, which should qualify the studied system as an environmentally friendly option for rare earth metal deposition. The newly reported data for Nd and Pr metals co-deposition provide valuable information for the recycling of neodymium-iron-boron magnets.",
publisher = "MDPI",
journal = "Metals",
title = "Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides",
volume = "11",
number = "9",
pages = "1494",
doi = "10.3390/met11091494"
}
Cvetković, V. S., Feldhaus, D., Vukićević, N., Barudžija, T. S., Friedrich, B.,& Jovićević, J. N.. (2021). Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides. in Metals
MDPI., 11(9), 1494.
https://doi.org/10.3390/met11091494
Cvetković VS, Feldhaus D, Vukićević N, Barudžija TS, Friedrich B, Jovićević JN. Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides. in Metals. 2021;11(9):1494.
doi:10.3390/met11091494 .
Cvetković, Vesna S., Feldhaus, Dominic, Vukićević, Nataša, Barudžija, Tanja S., Friedrich, Bernd, Jovićević, Jovan N., "Electrochemical study of Nd and Pr co-deposition onto Mo and W from molten oxyfluorides" in Metals, 11, no. 9 (2021):1494,
https://doi.org/10.3390/met11091494 . .
5
5

Electrodeposition of Nd and Pr onto W from fluoride based melts

Cvetković, Vesna S.; Feldhaus, Dominic; Vukićević, Nataša; Nikolić, Nebojša D.; Friedrich, Bernd; Jovićević, Jovan N.

(Belgrade : Serbian Society of Corrosion and Materials Protection (UISKOZAM), 2021)

TY  - CONF
AU  - Cvetković, Vesna S.
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša
AU  - Nikolić, Nebojša D.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4887
AB  - Electrodeposition of neodymium and praseodymium metal from molten NdF3+PrF3+LiF+ 0.5wt.%Pr6O11+0.5wt.%Nd2O3 electrolytes on W was investigated using voltammetry at 1050 °C. The square wave voltammetry confirmed that Nd electrodeposition is a two-step reduction process: first, involving one electron exchange (Nd(III)→Nd(II)) and second, involving two electrons exchange (Nd(II)→Nd(0)). However, praseodymium deposition proceeds as an one-step process involving exchange of three electrons (Pr(III)→Pr(0)). Nd and Pr metals were electrodeposited applying potentiostatic mode. The working electrode surface was analyzed by X-ray diffraction after Nd and Pr co-deposition.
AB  - Elektrohemijsko taloženje neodijuma i prazeodijuma iz fluoridnog NdF3+PrF3+LiF+ 0.5wt.%Pr6O11+0.5wt.%Nd2O3 rastopa na W radnoj elektrodi ispitivano je pomoću voltametrijskih tehnika na 1050 °C. Voltametrija sa pravougaonim talasima (SWV, square wave voltammetry) potvrdila je da je elektrohemijsko taloženje Nd proces koji se odvija u dva koraka: prvi, uključuje razmenu od jednog elektrona (Nd(III) → Nd(II)) i drugi korak, uključuje razmenu dva elektrona (Nd(II) → Nd(0)). Međutim, taloženje prazeodijuma uključuje izmenu tri elektrona (Pr(III) → Pr(0)) u jednom koraku. Nd i Pr su elektrohemijski taloženi primenom potenciostatskog režima. Nakon elektrohemijskog taloženja Nd i Pr površina radne elektrode analizirana je rengensko-difrakcionom tehnikom.
PB  - Belgrade : Serbian Society of Corrosion and Materials Protection (UISKOZAM)
C3  - Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija
T1  - Electrodeposition of Nd and Pr onto W from fluoride based melts
T1  - Elektrohemijsko taloženje Nd i Pr na W iz fluoridnih rastopa
SP  - 140
EP  - 144
UR  - https://hdl.handle.net/21.15107/rcub_cer_4887
ER  - 
@conference{
author = "Cvetković, Vesna S. and Feldhaus, Dominic and Vukićević, Nataša and Nikolić, Nebojša D. and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2021",
abstract = "Electrodeposition of neodymium and praseodymium metal from molten NdF3+PrF3+LiF+ 0.5wt.%Pr6O11+0.5wt.%Nd2O3 electrolytes on W was investigated using voltammetry at 1050 °C. The square wave voltammetry confirmed that Nd electrodeposition is a two-step reduction process: first, involving one electron exchange (Nd(III)→Nd(II)) and second, involving two electrons exchange (Nd(II)→Nd(0)). However, praseodymium deposition proceeds as an one-step process involving exchange of three electrons (Pr(III)→Pr(0)). Nd and Pr metals were electrodeposited applying potentiostatic mode. The working electrode surface was analyzed by X-ray diffraction after Nd and Pr co-deposition., Elektrohemijsko taloženje neodijuma i prazeodijuma iz fluoridnog NdF3+PrF3+LiF+ 0.5wt.%Pr6O11+0.5wt.%Nd2O3 rastopa na W radnoj elektrodi ispitivano je pomoću voltametrijskih tehnika na 1050 °C. Voltametrija sa pravougaonim talasima (SWV, square wave voltammetry) potvrdila je da je elektrohemijsko taloženje Nd proces koji se odvija u dva koraka: prvi, uključuje razmenu od jednog elektrona (Nd(III) → Nd(II)) i drugi korak, uključuje razmenu dva elektrona (Nd(II) → Nd(0)). Međutim, taloženje prazeodijuma uključuje izmenu tri elektrona (Pr(III) → Pr(0)) u jednom koraku. Nd i Pr su elektrohemijski taloženi primenom potenciostatskog režima. Nakon elektrohemijskog taloženja Nd i Pr površina radne elektrode analizirana je rengensko-difrakcionom tehnikom.",
publisher = "Belgrade : Serbian Society of Corrosion and Materials Protection (UISKOZAM)",
journal = "Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija",
title = "Electrodeposition of Nd and Pr onto W from fluoride based melts, Elektrohemijsko taloženje Nd i Pr na W iz fluoridnih rastopa",
pages = "140-144",
url = "https://hdl.handle.net/21.15107/rcub_cer_4887"
}
Cvetković, V. S., Feldhaus, D., Vukićević, N., Nikolić, N. D., Friedrich, B.,& Jovićević, J. N.. (2021). Electrodeposition of Nd and Pr onto W from fluoride based melts. in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija
Belgrade : Serbian Society of Corrosion and Materials Protection (UISKOZAM)., 140-144.
https://hdl.handle.net/21.15107/rcub_cer_4887
Cvetković VS, Feldhaus D, Vukićević N, Nikolić ND, Friedrich B, Jovićević JN. Electrodeposition of Nd and Pr onto W from fluoride based melts. in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija. 2021;:140-144.
https://hdl.handle.net/21.15107/rcub_cer_4887 .
Cvetković, Vesna S., Feldhaus, Dominic, Vukićević, Nataša, Nikolić, Nebojša D., Friedrich, Bernd, Jovićević, Jovan N., "Electrodeposition of Nd and Pr onto W from fluoride based melts" in Meeting point of the science and practice in the fields of corrosion, materials and environmental protection : proceedings XXII YuCorr International Conference / Stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine : knjiga radova XXII YuCorr [Jugoslovenska korozija] Međunarodna konferencija (2021):140-144,
https://hdl.handle.net/21.15107/rcub_cer_4887 .

Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride

Feldhaus, Dominic; Cvetković, Vesna S.; Vukićević, Nataša M.; Barudžija, Tanja S.; Friedrich, Bernd; Jovićević, Jovan N.

(Society of Physical Chemists of Serbia, 2021)

TY  - CONF
AU  - Feldhaus, Dominic
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša M.
AU  - Barudžija, Tanja S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6160
AB  - Neodymium and praseodymium were electrochemically co-deposited onto Mo cathode applying constant potential, from fluoride-based molten salts containing the corresponding rare earth oxides. According to the recorded voltammograms, it appears that in the investigated system, the electrodeposition of neodymium proceeds as a two-step reduction process: Nd(III)→Nd(II) and Nd(II)→Nd(0), whilst the praseodymium deposition proceeds as an one-step reduction process:
Pr(III)→Pr(0). However, it was also recognized that at the same time a substantial amount of NdF2
was formed as a result of the disproportionation reaction between the electrodeposited Nd metal and Nd(III) present in the electrolyte.
The deposit on the working electrode surface was recorded by optical microscopy and analyzed
by X-ray diffraction (XRD). The analysis made upon the applying the potentiostatic deposition regimehas shown Nd/Pr metals present on the molybdenum cathode.
PB  - Society of Physical Chemists of Serbia
C3  - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, "Physical Chemistry 2021," Belgrade, Serbia
T1  - Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride
VL  - I
SP  - 275
EP  - 278
UR  - https://hdl.handle.net/21.15107/rcub_cer_6160
ER  - 
@conference{
author = "Feldhaus, Dominic and Cvetković, Vesna S. and Vukićević, Nataša M. and Barudžija, Tanja S. and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2021",
abstract = "Neodymium and praseodymium were electrochemically co-deposited onto Mo cathode applying constant potential, from fluoride-based molten salts containing the corresponding rare earth oxides. According to the recorded voltammograms, it appears that in the investigated system, the electrodeposition of neodymium proceeds as a two-step reduction process: Nd(III)→Nd(II) and Nd(II)→Nd(0), whilst the praseodymium deposition proceeds as an one-step reduction process:
Pr(III)→Pr(0). However, it was also recognized that at the same time a substantial amount of NdF2
was formed as a result of the disproportionation reaction between the electrodeposited Nd metal and Nd(III) present in the electrolyte.
The deposit on the working electrode surface was recorded by optical microscopy and analyzed
by X-ray diffraction (XRD). The analysis made upon the applying the potentiostatic deposition regimehas shown Nd/Pr metals present on the molybdenum cathode.",
publisher = "Society of Physical Chemists of Serbia",
journal = "15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, "Physical Chemistry 2021," Belgrade, Serbia",
title = "Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride",
volume = "I",
pages = "275-278",
url = "https://hdl.handle.net/21.15107/rcub_cer_6160"
}
Feldhaus, D., Cvetković, V. S., Vukićević, N. M., Barudžija, T. S., Friedrich, B.,& Jovićević, J. N.. (2021). Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, "Physical Chemistry 2021," Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 275-278.
https://hdl.handle.net/21.15107/rcub_cer_6160
Feldhaus D, Cvetković VS, Vukićević NM, Barudžija TS, Friedrich B, Jovićević JN. Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, "Physical Chemistry 2021," Belgrade, Serbia. 2021;I:275-278.
https://hdl.handle.net/21.15107/rcub_cer_6160 .
Feldhaus, Dominic, Cvetković, Vesna S., Vukićević, Nataša M., Barudžija, Tanja S., Friedrich, Bernd, Jovićević, Jovan N., "Electrochemical deposition of neodymium and praseodymium on molybdenum from molten fluoride" in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, "Physical Chemistry 2021," Belgrade, Serbia, I (2021):275-278,
https://hdl.handle.net/21.15107/rcub_cer_6160 .

Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions

Cvetković, Vesna S.; Vukićević, Nataša; Feldhaus, Dominic; Milićević-Neumann, Ksenija; Barudžija, Tanja S.; Friedrich, Bernd; Jovićević, Jovan N.

(MDPI, 2021)

TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša
AU  - Feldhaus, Dominic
AU  - Milićević-Neumann, Ksenija
AU  - Barudžija, Tanja S.
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4054
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.
PB  - MDPI
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 and Feldhaus, Dominic and Milićević-Neumann, Ksenija and Barudžija, Tanja S. 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.",
publisher = "MDPI",
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., Feldhaus, D., Milićević-Neumann, K., Barudžija, T. S., Friedrich, B.,& Jovićević, J. N.. (2021). Electrodeposition of Aluminium-Vanadium Alloys from Chloroaluminate Based Molten Salt Containing Vanadium Ions. in Metals
MDPI., 11(1), 123.
https://doi.org/10.3390/met11010123
Cvetković VS, Vukićević N, Feldhaus D, Milićević-Neumann K, Barudžija TS, 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, Feldhaus, Dominic, Milićević-Neumann, Ksenija, Barudžija, Tanja S., 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 . .
1

Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode

Cvetković, Vesna S.; Feldhaus, Dominic; Vukićević, Nataša; Barudžija, Tanja; Friedrich, Bernd; Jovićević, Jovan N.

(MDPI, 2020)

TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Feldhaus, Dominic
AU  - Vukićević, Nataša
AU  - Barudžija, Tanja
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3587
AB  - Neodymium was electrochemically deposited from NdF3–LiF–Nd2O3 molten salt electrolyte onto the Mo electrode at temperatures close to 1273 K. Cyclic voltammetry and chronoamperometry measurements were the applied electrochemical methods. Metallic neodymium is obtained by potentiostatic deposition. The optical microscopy and XRD were used to analyze the electrolyte, the working electrode surface, and the deposit on the electrode. It was established that Nd(III) ions were reduced to Nd metals in two steps: Nd(III) + e− → Nd(II) at potential ≈−0.55 V vs. W and Nd(II) + 2e− → Nd(0) at ≈−0.83 V vs. W. Both of these processes are reversible and under mass transfer control. Upon deposition under the regime of relatively small deposition overpotential of −0.10 V to −0.20 V, and after the electrolyte was cooled off, Nd metal was observed at the surface of the Mo electrode. CO and CF4 were gases registered as being evolved at the anode. CO and CF4 evolution were observed in quantities below 600 ppm and 10 ppm, respectively
PB  - MDPI
T2  - Metals
T1  - Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode
VL  - 10
IS  - 5
SP  - 576
DO  - 10.3390/met10050576
ER  - 
@article{
author = "Cvetković, Vesna S. and Feldhaus, Dominic and Vukićević, Nataša and Barudžija, Tanja and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2020",
abstract = "Neodymium was electrochemically deposited from NdF3–LiF–Nd2O3 molten salt electrolyte onto the Mo electrode at temperatures close to 1273 K. Cyclic voltammetry and chronoamperometry measurements were the applied electrochemical methods. Metallic neodymium is obtained by potentiostatic deposition. The optical microscopy and XRD were used to analyze the electrolyte, the working electrode surface, and the deposit on the electrode. It was established that Nd(III) ions were reduced to Nd metals in two steps: Nd(III) + e− → Nd(II) at potential ≈−0.55 V vs. W and Nd(II) + 2e− → Nd(0) at ≈−0.83 V vs. W. Both of these processes are reversible and under mass transfer control. Upon deposition under the regime of relatively small deposition overpotential of −0.10 V to −0.20 V, and after the electrolyte was cooled off, Nd metal was observed at the surface of the Mo electrode. CO and CF4 were gases registered as being evolved at the anode. CO and CF4 evolution were observed in quantities below 600 ppm and 10 ppm, respectively",
publisher = "MDPI",
journal = "Metals",
title = "Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode",
volume = "10",
number = "5",
pages = "576",
doi = "10.3390/met10050576"
}
Cvetković, V. S., Feldhaus, D., Vukićević, N., Barudžija, T., Friedrich, B.,& Jovićević, J. N.. (2020). Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode. in Metals
MDPI., 10(5), 576.
https://doi.org/10.3390/met10050576
Cvetković VS, Feldhaus D, Vukićević N, Barudžija T, Friedrich B, Jovićević JN. Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode. in Metals. 2020;10(5):576.
doi:10.3390/met10050576 .
Cvetković, Vesna S., Feldhaus, Dominic, Vukićević, Nataša, Barudžija, Tanja, Friedrich, Bernd, Jovićević, Jovan N., "Investigation on the Electrochemical Behaviour and Deposition Mechanism of Neodymium in NdF3–LiF–Nd2O3 Melt on Mo Electrode" in Metals, 10, no. 5 (2020):576,
https://doi.org/10.3390/met10050576 . .
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Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte

Cvetković, Vesna S.; Vukićević, Nataša; Feldhaus, Dominic; Barudžija, Tanja; Stevanović, Jasmina; Friedrich, Bernd; Jovićević, Jovan J.

(Electrochemical Science Group (ESG), 2020)

TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša
AU  - Feldhaus, Dominic
AU  - Barudžija, Tanja
AU  - Stevanović, Jasmina
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan J.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3708
AB  - Electrochemical reduction processes of Nd(III) on tungsten and molybdenum electrodes in NdF3+LiF and NdF3+LiF+Nd2O3 were investigated by cyclic voltammetry, chronoamperometry and open circuit measurements. Electrolytes and electrodes were examined after neodymium electrodeposition by optical microscopy and XRD. It was found that tungsten and molybdenum working electrodes behave identically during neodymium complexed ion reduction processes. Their reversible potentials in the electrolytes used differed only by 10 mV, and so did the potentials of the neodymium ion reduction processes. The recorded results indicated that the Nd(III) ions in the melts were reduced in two steps: Nd(III) → Nd(II) and Nd(II) → Nd(0). These consecutive processes are predominantly mass transfer controlled. Electrolytically obtained metal appeared to accumulate on the cathode and no metal neodymium was recorded in the solidified electrolyte placed close to the cathode after completed electrodeposition process. However, it was found that NdF2 formed by the disproportionation reaction between Nd(III) and that deposited Nd(0) coexists with other complex components in the electrolytes used.
PB  - Electrochemical Science Group (ESG)
T2  - International Journal of Electrochemical Science
T1  - Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte
VL  - 15
IS  - 7
SP  - 7039
EP  - 7052
DO  - 10.20964/2020.07.82
ER  - 
@article{
author = "Cvetković, Vesna S. and Vukićević, Nataša and Feldhaus, Dominic and Barudžija, Tanja and Stevanović, Jasmina and Friedrich, Bernd and Jovićević, Jovan J.",
year = "2020",
abstract = "Electrochemical reduction processes of Nd(III) on tungsten and molybdenum electrodes in NdF3+LiF and NdF3+LiF+Nd2O3 were investigated by cyclic voltammetry, chronoamperometry and open circuit measurements. Electrolytes and electrodes were examined after neodymium electrodeposition by optical microscopy and XRD. It was found that tungsten and molybdenum working electrodes behave identically during neodymium complexed ion reduction processes. Their reversible potentials in the electrolytes used differed only by 10 mV, and so did the potentials of the neodymium ion reduction processes. The recorded results indicated that the Nd(III) ions in the melts were reduced in two steps: Nd(III) → Nd(II) and Nd(II) → Nd(0). These consecutive processes are predominantly mass transfer controlled. Electrolytically obtained metal appeared to accumulate on the cathode and no metal neodymium was recorded in the solidified electrolyte placed close to the cathode after completed electrodeposition process. However, it was found that NdF2 formed by the disproportionation reaction between Nd(III) and that deposited Nd(0) coexists with other complex components in the electrolytes used.",
publisher = "Electrochemical Science Group (ESG)",
journal = "International Journal of Electrochemical Science",
title = "Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte",
volume = "15",
number = "7",
pages = "7039-7052",
doi = "10.20964/2020.07.82"
}
Cvetković, V. S., Vukićević, N., Feldhaus, D., Barudžija, T., Stevanović, J., Friedrich, B.,& Jovićević, J. J.. (2020). Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte. in International Journal of Electrochemical Science
Electrochemical Science Group (ESG)., 15(7), 7039-7052.
https://doi.org/10.20964/2020.07.82
Cvetković VS, Vukićević N, Feldhaus D, Barudžija T, Stevanović J, Friedrich B, Jovićević JJ. Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte. in International Journal of Electrochemical Science. 2020;15(7):7039-7052.
doi:10.20964/2020.07.82 .
Cvetković, Vesna S., Vukićević, Nataša, Feldhaus, Dominic, Barudžija, Tanja, Stevanović, Jasmina, Friedrich, Bernd, Jovićević, Jovan J., "Study of Nd deposition onto W and Mo Cathodes from Molten Oxide-Fluoride Electrolyte" in International Journal of Electrochemical Science, 15, no. 7 (2020):7039-7052,
https://doi.org/10.20964/2020.07.82 . .
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