Evaluation of durability of A201 anion-exchange membranes towards organic solvents

IF 2.6 4区化学 Q3 ELECTROCHEMISTRY

Journal of Solid State Electrochemistry Pub Date : 2025-03-27 DOI:10.1007/s10008-025-06262-9

Juri Harada, Akizumi Yonezawa, Yusuke Muto, Ayaka Wakasugi, Reno Fukui, Naoki Shida, Mahito Atobe

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引用次数: 0

Abstract

Electrolysis using solid polymer electrolyte membranes, such as anion-exchange membranes (AEMs), is a promising technology for electrolysis and organic electrosynthesis. Herein, we report that the A201 membrane, a representative AEM widely used in AEM water electrolysis (AEMWE), exhibits remarkable durability in a wide range of organic solvents. The A201 membrane was soaked in various organic solvents for three weeks, and no significant physical changes, such as swelling and dissolution, were observed. AEMWE using A201 membrane soaked with organic solvents was performed with pure water at a current density of 25 mA cm^–2, enabling smooth electrolysis with reasonable cell voltage within the 2.2 − 2.7 V range. Water electrolysis was also performed using organic solvents while maintaining a relatively small cell voltage for 4 h. Electrochemical impedance spectroscopy was performed to evaluate the charge transfer resistance, which revealed that the membrane resistance increased with increasing the polarity of the solvents. The A201 membrane exhibits chemical stability and maintains ionic conductivity in the presence of organic solvents, suggesting its potential suitability for applications in organic electrosynthesis.

Graphical abstract

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A201阴离子交换膜对有机溶剂的耐久性评价

利用阴离子交换膜（AEMs）等固体聚合物电解质膜进行电解是一种很有前途的电解和有机电合成技术。本文报道了广泛应用于AEM水电解（AEMWE）的A201膜在多种有机溶剂中表现出优异的耐久性。A201膜在各种有机溶剂中浸泡3周，未观察到明显的物理变化，如肿胀和溶解。采用有机溶剂浸泡的A201膜，在25 mA cm-2的电流密度下，以纯水进行AEMWE，在2.2 ~ 2.7 V范围内，电池电压合理，电解顺利。在保持相对小的电池电压的情况下，用有机溶剂进行电解4小时。电化学阻抗谱分析了膜的电荷转移电阻，结果表明，随着溶剂极性的增加，膜的电阻增加。A201膜在有机溶剂存在下表现出化学稳定性和离子电导率，表明其在有机电合成中的潜在适用性。图形抽象

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

Journal of Solid State Electrochemistry 工程技术-电化学

CiteScore

4.80

自引率

4.00%

发文量

227

审稿时长

4.1 months

期刊介绍： The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.