ORS6-0303
Diallylammonium-cyclopolymerized anion exchange membranes for high-performance water electrolysis
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Juyeon Choi (Korea University)
Co-Author(s)
Abstract
Anion exchange membrane (AEM) water electrolysis (AEMWE) is a promising technology for green hydrogen (H2) production using renewable energy. In the AEMWE system, an AEM is critical for efficient and safe operation, as it conducts hydroxide ions (OH-) while maintaining alkaline stability. However, ion-transport factors governing the OH- conductivity of AEMs remain unclear. Herein, we present a newly developed diallylammonium-cyclopolymerized (PDT) membrane composed of linear and crosslinked structures. By controlling the crosslinking density, the relationship between membrane structure and ion transport was systematically investigated. As a result, OH- conductivity was more strongly correlated with OH- diffusivity than with OH- partitioning, highlighting the importance of ion mobility in AEM design. The optimized PDT membrane also exhibited higher AEMWE performance compared with commercial AEMs.
