Jeong Dahye, Park Jin-Soo
Department of Green Chemical Engineering, College of Engineering, Sangmyung University, Cheonan 31066, Republic of Korea.
Future Environment and Energy Research Institute, Sangmyung University, Cheonan 31066, Republic of Korea.
Membranes (Basel). 2024 Dec 9;14(12):265. doi: 10.3390/membranes14120265.
This study examines the effect of the structural characteristics of anion-conducting monomers within pore-filling anion exchange membranes on the performance and durability of anion exchange membrane water electrolysis. Analysis reveals that acrylamide- and acrylate-based membranes show optimal performance without methyl groups, with acrylamide-based membranes outperforming their acrylate counterparts in current density, particularly at 1.8 V. The AC-AA and AC-MAA monomers demonstrate durability, with AC-MAA showing enhanced alkaline stability, likely due to the presence of a methyl group, resulting in an increase rate of 746.6 μV/h compared to AC-AA's 1150 μV/h. This study also shows that a commercial membrane exhibits a decrease rate of 3116 μV/h, underscoring the pore-filling membrane's superior durability. Furthermore, the findings highlight that pore-filling membrane technology enables better durability and performance in electrolysis environments compared to the commercial homogeneous membrane, particularly when alkaline conditions are present. This research provides a foundation for designing high-performance, durable membranes for efficient hydrogen production, particularly under water electrolysis conditions.
本研究考察了孔填充型阴离子交换膜中阴离子传导单体的结构特征对阴离子交换膜水电解性能和耐久性的影响。分析表明，基于丙烯酰胺和丙烯酸酯的膜在没有甲基的情况下表现出最佳性能，基于丙烯酰胺的膜在电流密度方面优于其丙烯酸酯同类产品，特别是在1.8V时。AC-AA和AC-MAA单体表现出耐久性，AC-MAA显示出增强的碱性稳定性，这可能是由于甲基的存在，与AC-AA的1150μV/h相比，其增加速率为746.6μV/h。本研究还表明，一种商业膜的下降速率为3116μV/h，突出了孔填充膜的卓越耐久性。此外，研究结果强调，与商业均质膜相比，孔填充膜技术在电解环境中能够实现更好的耐久性和性能，特别是在存在碱性条件时。这项研究为设计用于高效制氢的高性能、耐用膜提供了基础，特别是在水电解条件下。
