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Water-facilitated electrodeposition of neodymium in a phosphonium-based ionic liquid
journal contribution
posted on 2019-01-01, 00:00 authored by Laura Sanchez-Cupido, Jenny PringleJenny Pringle, Amal L Siriwardana, Ainhoa Unzurrunzaga, Matthias Hilder, Maria ForsythMaria Forsyth, Cristina Pozo-GonzaloCristina Pozo-GonzaloRare-earth metals are considered critical metals due to their extensive use in energy-related applications such as wind turbines and nickel-metal hybrid batteries found in hybrid electrical vehicles. A key drawback of the current processing methods includes the generation of large amounts of toxic and radioactive waste. Thus the efficient recovery of these valuable metals as well as cleaner processing methods are becoming increasingly important. Here we report on a clean electrochemical route for neodymium (Nd) recovery from [P6,6,6,14][TFSI], trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)amide which is amplified three times by the presence of water, as evidenced by the cathodic current density and thicker deposits. The role of Nd salt concentrations and water content as an additive in the electrochemistry of Nd3+ in [P6,6,6,14][TFSI] has been studied. The presence of metallic neodymium in the deposits has been confirmed by X-ray photoelectron spectroscopy.
History
Journal
Journal of physical chemistry lettersVolume
10Issue
2Pagination
289 - 294Publisher
American Chemical SocietyLocation
Washington, D.C.Publisher DOI
eISSN
1948-7185Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2019, American Chemical SocietyUsage metrics
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Categories
Keywords
Science & TechnologyPhysical SciencesTechnologyChemistry, PhysicalNanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, Atomic, Molecular & ChemicalChemistryScience & Technology - Other TopicsMaterials SciencePhysicsELECTROCHEMICAL SYNTHESISRARE-EARTHSALUMINUMNUCLEATIONDYSPROSIUMREDUCTIONTITANIUMNICKELGROWTHSALTS