Investigation of electrodeposition behavior for Nd(III) in [P2225][TFSA] ionic liquid by EQCM methods with elevated temperatures

Ota, Hisashi; Matsumiya, Masahiko; Sasaya, Naoko; Nishihata, Keiichi; Tsunashima, Katsuhiko

doi:10.1016/j.electacta.2016.11.038

Cited by 39 publications

(14 citation statements)

References 40 publications

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“…Sputtering caused the appearance of a second peak component assigned to Nd 0 as evidenced by the XPS measurements. In Figure 10, the spectra of Nd3d collected after different periods of sputtering cycles of the sample are presented and show that a second peak at 3 eV lower binding energy appeared, which is assigned to the Nd 0 chemical state [26], thus confirming that metallic Nd is electrodeposited.…”

Section: Optimum Conditionsmentioning

confidence: 89%

Study of Nd Electrodeposition from the Aprotic Organic Solvent Dimethyl Sulfoxide

Bourbos

Karantonis

Sygellou

et al. 2018

Metals

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The use of organic solvents in an electrolytic system for neodymium electrorecovery by electrolysis at low temperatures is studied in the current work. More specifically, an alternative route, that of the system of DMSO (Dimethyl sulfoxide) with dissolved NdCl3 has been researched and has given promising results. The study of this electrolytic system has been divided into two stages. Firstly, the characteristics of the electrolyte, the dissolution of NdCl3 in DMSO, the conductivity and the viscosity of NdCl3 solutions in DMSO at various temperatures, and the Nd complexation in the solution were studied and secondly, the electrolysis parameters and their impact on the Nd electrodeposition process were evaluated. Finally, the deposits were submitted to SEM-EDS (Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy) analysis and metallic Nd was confirmed to be electrodeposited by X-ray Photoelectron Spectroscopy (XPS) spectroscopy.

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Section: Optimum Conditionsmentioning

confidence: 89%

Study of Nd Electrodeposition from the Aprotic Organic Solvent Dimethyl Sulfoxide

Bourbos

Karantonis

Sygellou

et al. 2018

Metals

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“…Pd(II) was recovered from acidic media by electrodeposition from the extraction system using hydrophobic IL [C 4 mim][NTf 2 ] with a wide electrochemical window, high electrical conductivity, and high boiling point as a diluent. 30 Experiments show that the [C 8 bet]Br/[C 4 mim][NTf 2 ] IL system has a great significance in simplifying the recovery steps and reducing the volume of secondary waste. The mixed IL system can extract and recover palladium efficiently through solvent extraction–direct electrodeposition.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Pd(II) from Hydrochloric Acid Medium by Solvent Extraction–Direct Electrodeposition Using Hydrophilic/Hydrophobic ILs

Shao

Jin

et al. 2020

ACS Omega

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Mixed [C 8 bet]Br/[C 4 mim][NTf 2 ] ionic liquids were used as a new extraction system to extract Pd(II) from multimetal-ion solutions. The separation factors K Pd/M (M: Cu, Fe, Ni, Zn, Co) are greater than 10 3 . Thiourea was found to be an effective stripping agent. After three cycles, the recovery efficiency was higher than 91.0%. Direct electrodeposition of palladium from the mixed ionic liquid phase was also studied. The Pd(II) complex in [C 8 bet]Br/[C 4 mim][NTf 2 ] system was studied by cyclic voltammetry at 348 K. The results indicate the existence of three types of Pd(II) complex in the [C 8 bet]Br/[C 4 mim][NTf 2 ] system, leading to three reductive waves. The reduction of Pd(II) to Pd(0) in this system is irreversible. A uniform black coating was obtained by constant-potential deposition at −1.7 V on a nickel foil, confirmed to be palladium metal by energy-dispersive spectrometry, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy analyses. After three cycles of continuous extraction–electrodeposition, over 90.0% of palladium was recovered.

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“…to investigate the effect of the sulphur atom substituent in redox behaviour of the ionic liquid. They , at high temperature performed by Ota et al [74] was confirmed by the cathodic peak detected by cyclic voltammetry.…”

Section: Ammonium- Pyrrolidinium- Phosphonium-and Sulfonium-based Ilsmentioning

confidence: 76%

“…The cyclic voltammetric analysis of the iron complex using the new carbon paste electrode ionic liquid confirmed two different iron redox centers in oxidation states (II) and (III). Also, the electrodeposition of Nd(III) in triethylpentylphosphonium bis(trifluoromethanesulfonyl)imide, [P 2225 ][NTf 2 ], at high temperature performed by Ota et al [ 74 ] was confirmed by the cathodic peak detected by cyclic voltammetry.…”

Section: Ammonium- Pyrrolidinium- Phosphonium- and Sulfonium-basmentioning

confidence: 99%

Application of Ionic Liquids in Electrochemistry—Recent Advances

2020

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In this review, the roles of room temperature ionic liquids (RTILs) and RTIL based solvent systems as proposed alternatives for conventional organic electrolyte solutions are described. Ionic liquids are introduced as well as the relevant properties for their use in electrochemistry (reduction of ohmic losses), such as diffusive molecular motion and ionic conductivity. We have restricted ourselves to provide a survey on the latest, most representative developments and progress made in the use of ionic liquids as electrolytes, in particular achieved by the cyclic voltammetry technique. Thus, the present review comprises literature from 2015 onward covering the different aspects of RTILs, from the knowledge of these media to the use of their properties for electrochemical processes. Out of the scope of this review are heat transfer applications, medical or biological applications, and multiphasic reactions.

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Investigation of electrodeposition behavior for Nd(III) in [P2225][TFSA] ionic liquid by EQCM methods with elevated temperatures

Cited by 39 publications

References 40 publications

Study of Nd Electrodeposition from the Aprotic Organic Solvent Dimethyl Sulfoxide

Study of Nd Electrodeposition from the Aprotic Organic Solvent Dimethyl Sulfoxide

Recovery of Pd(II) from Hydrochloric Acid Medium by Solvent Extraction–Direct Electrodeposition Using Hydrophilic/Hydrophobic ILs

Application of Ionic Liquids in Electrochemistry—Recent Advances

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