Determination of kinetic properties of Sm(III)/Sm(II) reaction in LiCl-KCl molten salt using cyclic voltammetry and electrochemical impedance spectroscopy
Creators
- 1. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of). Nucelar Fuel Cycle Process Research Division
- 2. Virginia Commonwealth University, Richmond, VA (United States). Department of Mechanical and Nuclear Engineering
- 3. Idaho National Laboratory, Idaho Falls, ID (United States). Pyropchemistry and Molten Salt System Department
- 4. Boise State University, Boise, ID (United States). Department of Materials Science and Engineering
Description
Electrochemical and kinetic properties of samarium (Sm) in LiCl-KCl eutectic salt were investigated at various concentrations and temperatures. Cyclic voltammetry (CV) were performed to determine diffusion coefficient and the rate constant (k0). In addition, electrochemical impedance spectroscopy (EIS) was conducted for further understandings on the kinetic behaviors of Sm(III)/Sm(II) couple. The values of the diffusion coefficients were in the range of 3.54 × 10-6 to 9.58 × 10-5 cm2 s-1and the values of k0 were estimated to be in the range of 0.63 × 10-2 to 1.11 × 10-2 cm s-1. The values of i0 for Sm(III)/Sm(II) were computed by obtaining the charge transfer resistance from the curve fitting analysis, ranging from 1.04 × 10-3 to 2.97 × 10-3 A cm-2. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 322
- Journal Issue
- 2
- Journal Page Range
- p. 1031-1037
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 51005959
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ELECTROCHEMISTRY; EUTECTICS; IMPEDANCE; SAMARIUM; SPECTROSCOPY; VOLTAMETRY
- Descriptors DEC
- CHEMISTRY; ELEMENTS; METALS; RARE EARTHS
Optional Information
- Notes
- 15 refs.