Electroreduction of Holmium Ion on Iron Electrde in Molten Cholorides

Authors

Qiqin Yang, Department of Chemistry, Zhongshan University, Guangzhou 510275
Guankun Liu, Department of Chemistry, Zhongshan University, Guangzhou 510275
Yuzhi Su, Department of Chemistry, Zhongshan University, Guangzhou 510275

Corresponding Author

Qiqin Yang

Abstract

The cyclic voltammetry, open circuit potential-time curve after poteritiostatic electrolysis, current-time curve at potential step, X-ray diffraction and electron probe microanalysiswere used to investigate the electrode process of Ho(Ⅲ) reduced on iron electrode in molten chloridesand the phases of surface alloy layer. The Ho-Fe alloys are formed at first, and then the metallic holmium is deposited when Ho(Ⅲ) is reduced on iron electrode. The charge transfer is reversible. The free energies of formation for the four inter metallic compounds of Ho-Fe system, the diffusion coefficients and diffusion activation energy of Ho in alloyed cathode are determined.

Keywords

Electroreduction of Ho(Ⅲ), kCl-HoCl3, Ho-Fe alloy, Free energy offormation

DOI Link

https://doi.org/10.61558/2993-074X.1262

Publication Date

1995-02-28

Online Available Date

1995-02-28

Revised Date

1994-08-05

Received Date

1994-06-01

Recommended Citation

Qiqin Yang, Guankun Liu, Yuzhi Su. Electroreduction of Holmium Ion on Iron Electrde in Molten Cholorides[J]. Journal of Electrochemistry, 1995 , 1(1): 44-49.
DOI: 10.61558/2993-074X.1262
Available at: https://jelectrochem.xmu.edu.cn/journal/vol1/iss1/7