Study of Nd Electrodeposition from the Aprotic Organic Solvent Dimethyl Sulfoxide

Bourbos, E.; Karantonis, Antonis; Sygellou, Labrini; Paspaliaris, Ioannis; Panias, Dimitrios

doi:10.3390/met8100803

Cited by 16 publications

(9 citation statements)

References 25 publications

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“…Song et al demonstrated Ni-P-ZrO 2 -CeO 2 composite coatings on #45 steel using the jet-electrodeposition technique and achieved an optimal coating condition (e.g., potential and current density) for improving surface properties, hardness, and wear resistance [16]. Bourbos et al studied the recovery of neodymium (Nd) by galvanostatic electrolysis at −0.8 µA and potentiostatic electrolysis at −2 V in dimethyl sulfoxide with dissolved 0.1 M NdCl 3 , where the best result was obtained by pulsed electrolysis at low temperatures under stirring [17]. Li et al prepared a Ni-Mo-La composite using electro-codeposition in a weak alkaline solution of Ni and Mo ions mixed with La 3+ ion [18].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition and Characterization of Lanthanide Elements on Carbon Sheets

et al. 2021

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Electrochemical coating and recovery by electrodeposition have been invaluably employed for facial thin film fabrication and the recycling of used materials. Herein, we have established a full data set of lanthanide (Ln: La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb) elements electrodeposited on carbon sheets. Cyclic voltammetry was performed for 10 mM Ln(III) ions in a 0.1 M NaClO4 electrolyte over a carbon sheet between +0.5 V and −1.7 V (vs. Ag/AgCl). Amperometry was performed at a given potential to electrodeposit the Ln element on the carbon sheet. Their physicochemical properties were fully investigated by scanning electron microscopy, Fourier-transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. The newly established full data set for Ln(III) ions over carbon electrodes provides useful fundamental information for the development of coating and recovery methods of Ln elements.

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Section: Introductionmentioning

confidence: 99%

Electrodeposition and Characterization of Lanthanide Elements on Carbon Sheets

et al. 2021

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“…The potential suitability of organic solvents such as dimethyl sulfoxide (DMSO) was studied using NdCl 3 salt, where different electrolysis parameters including electrolysis mode, supporting electrolyte, Nd 3+ concentration, temperature and stirring were analysed to understand their impact on Nd electrodeposition [51]. The application of a pulsed current or voltage was concluded to be favourable compared to traditional galvanostatic or potentiostatic polarisation as this resulted in increased mass deposited (3 vs. 12 mg) and higher purity of the Nd metal electrodeposit.…”

Section: Recovery Of Nd Via Electrodepositionmentioning

confidence: 99%

Analysis of Sustainable Methods to Recover Neodymium

Periyapperuma

Sanchez-Cupido

Pringle

et al. 2021

Sustainable Chemistry

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Neodymium (Nd) is one of the most essential rare-earth metals due to its outstanding properties and crucial role in green energy technologies such as wind turbines and electric vehicles. Some of the key uses includes permanent magnets present in technological applications such as mobile phones and hard disk drives, and in nickel metal hydride batteries. Nd demand is continually growing, but reserves are severely limited, which has put its continued availability at risk. Nd recovery from end-of-life products is one of the most interesting ways to tackle the availability challenge. This perspective concentrates on the different methods to recover Nd from permanent magnets and rechargeable batteries, covering the most developed processes, hydrometallurgy and pyrometallurgy, and with a special focus on electrodeposition using highly electrochemical stable media (e.g., ionic liquids). Among all the ionic liquid chemistries, only phosphonium ionic liquids have been studied in-depth, exploring the impact of temperature, electrodeposition potential, salt concentration, additives (e.g., water) and solvation on the electrodeposition quality and quantity. Finally, the importance of investigating new ionic liquid chemistries, as well as the effect of other metal impurities in the ionic liquid on the deposit composition or the stability of the ionic liquids are discussed. This points to important directions for future work in the field to achieve the important goal of efficient and selective Nd recovery to overcome the increasingly critical supply problems.

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“…Recovery of these elements and thus securing of supply of raw materials independently of non-European market is still the focus of research today. Four papers deal with the recovery of REE [8][9][10][11].…”

Section: Contributionsmentioning

confidence: 99%