Relationship between equilibrium potential and radius of lanthanides electrolyzed on the zinc cathode

Peng Li; Milin Zhang; Debin Ji; Min Qiu; Li Liu

doi:10.1016/j.cjche.2019.02.011

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Relationship between equilibrium potential and radius of lanthanides electrolyzed on the zinc cathode

Materials and Product Engineering | Updated：2026-01-06

- Relationship between equilibrium potential and radius of lanthanides electrolyzed on the zinc cathode
- Chinese Journal of Chemical Engineering Vol. 27, Issue 12, Pages: 3027-3035(2019)
- Affiliations：
  
  1. Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University,Harbin,China,150001
  2. College of Science, Heihe University,Heihe,China,164300
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.02.011
  CLC：
- Published：2019
- Accepted：
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Peng Li, Milin Zhang, Debin Ji, Min Qiu, Li Liu. Relationship between equilibrium potential and radius of lanthanides electrolyzed on the zinc cathode[J]. Chinese Journal of Chemical Engineering, 2019, 27(12): 3027-3035.
DOI：

Peng Li, Milin Zhang, Debin Ji, Min Qiu, Li Liu. Relationship between equilibrium potential and radius of lanthanides electrolyzed on the zinc cathode[J]. Chinese Journal of Chemical Engineering, 2019, 27(12): 3027-3035. DOI： 10.1016/j.cjche.2019.02.011.

摘要

Abstract

The electrochemical behavior of lanthanide elements deposited on liquid zinc cathodes was studied using cyclic voltammetry (CV) and open circuit chronopotentiometry (OCP). We observed a "bimodal effect" in the equilibrium deposition potentials of zinc with lanthanides. A mathematic equation is derived to illustrate the relationship between the equilibrium potential of the intermetallic compounds formed by lanthanide elements and zinc and their atomic radius. This equation is not only applicable to lanthanide elements but also hold for other elements such as alkali metal lithium

alkaline earth metal magnesium

calcium and transition metal niobium

which have crucial theoretical significance for the electrolysis of intermetallic compounds

the separation

and extraction of metals.

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