In-situ concentration measurement of soluble-soluble redox couple in molten chlorides utilizing intense natural convection effect

IF 4.7 3区工程技术 Q2 ELECTROCHEMISTRY

Electrochemistry Communications Pub Date : 2023-10-01 DOI:10.1016/j.elecom.2023.107576

Fei Zhu , Jianbang Ge , Yang Gao , Biwu Cai , Zichen Zhang , Feifei Jia , Shuqiang Jiao

引用次数: 1

Abstract

Herein we reported the in-situ electrochemical concentration measurement of soluble-soluble redox species (Eu³⁺/Eu²⁺ and Sm³⁺/Sm²⁺) in molten LiCl-KCl, based on the notable natural convection in molten salts. The combined simulation and experiments confirmed the presence of strong natural convection, which resulted in steady-state current in cyclic voltammetry tests at low scan rates. Interestingly, this natural convection effects offered a novel and simple way to calculate the diffusion coefficient and concentration ratio of soluble redox species.

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利用强自然对流效应原位测量熔融氯化物中可溶性-可溶性氧化还原偶的浓度

基于熔盐中明显的自然对流现象，本文报道了熔融LiCl-KCl中可溶-可溶性氧化还原物质(Eu3+/Eu2+和Sm3+/Sm2+)的原位电化学浓度测定。模拟与实验相结合，证实了强自然对流的存在，使得循环伏安法测试在低扫描速率下产生稳态电流。有趣的是，这种自然对流效应为计算可溶性氧化还原物质的扩散系数和浓度比提供了一种新颖而简单的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electrochemistry Communications 工程技术-电化学

CiteScore

8.50

自引率

3.70%

发文量

160

审稿时长

1.2 months

期刊介绍： Electrochemistry Communications is an open access journal providing fast dissemination of short communications, full communications and mini reviews covering the whole field of electrochemistry which merit urgent publication. Short communications are limited to a maximum of 20,000 characters (including spaces) while full communications and mini reviews are limited to 25,000 characters (including spaces). Supplementary information is permitted for full communications and mini reviews but not for short communications. We aim to be the fastest journal in electrochemistry for these types of papers.