Recovery of Pd(II) from Hydrochloric Acid Medium by Solvent Extraction–Direct Electrodeposition Using Hydrophilic/Hydrophobic ILs
Min Shao, Shunling Li, Ci Jin, Muhan Chen, Zhangjie Huang
Abstract
] 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.
Topics & Concepts
PalladiumIonic liquidC4mimChemistryExtraction (chemistry)Cyclic voltammetryInorganic chemistryX-ray photoelectron spectroscopyHydrochloric acidNuclear chemistryElectrochemistryChemical engineeringChromatographyPhysical chemistryElectrodeCatalysisOrganic chemistryEngineeringExtraction and Separation ProcessesIonic liquids properties and applicationsElectrochemical Analysis and Applications