For effective recovery of the fission element Pr from spent nuclear fuel (SNF) by using molten salt electrolysis technology, the electrochemical behavior of Pr(III) on inert Mo electrode in the molten LiCl–KCl system was investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV) techniques, indicating that the reduction of Pr(III) on the Mo electrode is a one-step reaction process with three electrons. Subsequently, electrochemical methods were used to reveal and calculate the kinetic and thermodynamic parameters of the Pr(III) ion reduction process. The co-reduction reaction of Pr(III) and Co(II) ions was explored, and five different CoxPry intermetallic compounds were detected. Meanwhile, only one Co2Pr intermetallic compound was obtained by galvanostatic and potentiostatic electrolysis with the best electrochemical parameters, and the thermodynamic properties of the Co2Pr intermetallic compound were calculated at different temperatures. The co-reduction product was verified using X-ray diffraction (XRD), and the composition was determined by scanning electron microscopy (SEM) with energy spectrum analysis (EDS) and X-ray photoelectron spectroscopy (XPS). In addition, the produced Co2Pr intermetallic compound has magnetic properties with a saturation magnetization of 10.3 emu/g.
Язык оригиналаАнглийский
Номер статьи108022
ЖурналIntermetallics
Том162
DOI
СостояниеОпубликовано - 1 нояб. 2023

    Предметные области WoS

  • Химия, Физическая
  • Материаловедение, Междисциплинарные труды
  • Металловедение и Металлургия

    Предметные области ASJC Scopus

  • Metals and Alloys
  • Mechanical Engineering
  • Mechanics of Materials
  • Химия в целом

ID: 43271844