Related Experiment Video
Updated: May 15, 2025

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Transport properties of dissolved [O] in the (LiF-CaF2)eut.-NdOF molten salt system
Kailei Sun1, Linsheng Luo1, Xu Wang1
1School of Metallurgical Engineering, Jiangxi University of Science and Technology Ganzhou 341000 China wx730313@163.com.
Abstract:
The transport properties of [O] in dissolved rare-earth oxyfluorides provide an important theoretical basis for optimizing anode reactions during molten salt electrolysis in fluoride systems for rare-earth metal production. In this study, the solubility of NdOF in (LiF-CaF2)eut. was investigated, and the electrical conductivity and density of the saturated NdOF system were measured. The self-diffusion coefficients and radial distribution functions of the ions in the system were analyzed using first-principles molecular dynamics. The transport number of dissolved O*(ii) ions in the saturated (LiF-CaF2)eut.-NdOF system was determined using the coulometric method, providing a comprehensive analysis of the variation in the migration rate and diffusion coefficients of dissolved O*(ii) ions. The results showed that the solubility of NdOF in the (LiF-CaF2)eut. System, along with the electrical conductivity and density of the saturated system, exhibited linear variations in the temperature range of 1123-1373 K. The transport number, migration rate, and diffusion coefficient of dissolved O*(ii) ions underwent non-linear changes with increasing potential within the range of 3.0-4.5 V, reaching a maximum in the range of 3.75-4.25 V, while still increasing linearly with temperature. When the [temperature-potential] was in the [1200 K↑-3.5 V↑] range, the migration rate and diffusion coefficient of O*(ii) ions were the highest, with the potential playing a dominant role in the diffusion coefficient of O*(ii) ions. The radial distribution function values of the ions in the system indicated that Nd*(iii) ions had the strongest restraining effect on the dissolved O*(ii) ions during the diffusion process.
More Related Videos
06:561,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
Published on: October 10, 2016
09:43Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
Published on: August 13, 2019
Related Concept Videos
Solubility Equilibria: Overview
Solubility is important in biological and environmental processes. A notable...
Factors Affecting Solubility
Aqueous Solutions and Heats of Hydration
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
Common Ion Effect
Composition of Body Fluids
Solubility
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...