Synthesis and characterization of neodymium oxychloride

Jianxun Song, Shaolong Li, Yusi Che*, Yong Fan*, Handong Jiao*, Yongchun Shu, Jilin He

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

As a cathode material, neodymium oxychloride (NdOCl) was used for neodymium extraction by through the solid-oxide oxygen-ion-conducting membrane (SOM) process. In this study, the preparation and sintering conditions of the neodymium oxychloride were discussed. The purity of materials phase compositions was confirmed by the X-ray diffraction method. Moreover, the electrical properties of NdOCl were investigated by Electrochemical Impedance Spectroscopy (EIS) in molten CaCl2 at temperature range 800–900 °C and voltage range of 1.4–1.6 V. The spectra were analyzed by the equivalent circuit fitting. Based on the values of equivalent circuits parameters, the specific conductivities were calculated and presented in the Arrhenius coordinates, and energy of activation of the charge transfer reaction (Nd2+→Nd) was also calculated.

Original languageEnglish
Pages (from-to)16378-16386
Number of pages9
JournalJournal of Materials Research and Technology
Volume9
Issue number6
DOIs
Publication statusPublished - 1 Nov 2020

Keywords

  • Characterization
  • EIS
  • Molten salt extraction
  • Neodymium oxychloride
  • Synthesis

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