RT Journal Article
T1 Water-Facilitated Electrodeposition of Neodymium in a Phosphonium-Based Ionic Liquid
A1 Sanchez-Cupido, Laura
A1 Pringle, Jennifer M.
A1 Siriwardana, Amal L.
A1 Unzurrunzaga, Ainhoa
A1 Hilder, Matthias
A1 Forsyth, Maria
A1 Pozo-Gonzalo, Cristina
AB Rare-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 [P 6,6,6,14 ][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 Nd 3+ in [P 6,6,6,14 ][TFSI] has been studied. The presence of metallic neodymium in the deposits has been confirmed by X-ray photoelectron spectroscopy.
SN 1948-7185
YR 2019
FD 2019-01-17
LA eng
NO Sanchez-Cupido , L , Pringle , J M , Siriwardana , A L , Unzurrunzaga , A , Hilder , M , Forsyth , M & Pozo-Gonzalo , C 2019 , ' Water-Facilitated Electrodeposition of Neodymium in a Phosphonium-Based Ionic Liquid ' , Journal of Physical Chemistry Letters , vol. 10 , no. 2 , pp. 289-294 . https://doi.org/10.1021/acs.jpclett.8b03203
NO Publisher Copyright: © 2019 American Chemical Society.
NO This work was supported by a grant received from the Basque Government (grant number KK-2016/00095 assigned to the project LISOL-Soluciones basadas en liquidos ionicoś para diversificar las oportunidades de la industria vasca) and Deakin University (IFM Student Travel Award). We thank Alex Bondarchuk at CIC Energigune Energy Cooperative Research Centre for the XPS analysis support.
DS TECNALIA Publications
RD 1 jul 2024