연구
Research Outcome
미래를 창조하는 포스텍 화학공학과
Poly(fluorene)-Based Anion Exchange Membrane Demonstrating Excellent Durability at 1.5 A cm‒2 for 2400 h in Water Electrolyzers
- Title of paper
- Poly(fluorene)-Based Anion Exchange Membrane Demonstrating Excellent Durability at 1.5 A cm‒2 for 2400 h in Water Electrolyzers
- Author
- [박태호교수 연구실] 1.5 A cm‒2에서 2400시간 동안 우수한 내구성을 구현한 수전해 전지용 폴리(플루오렌)-기반 음이온 교환 막
- Publication in journal
- Advanced Energy Materials
- Publication date
- 20250502
[Abstract]
Anion exchange membrane water electrolyzer (AEMWE) is a cost-effective alternative to proton exchange membrane water electrolyzer for green hydrogen production. However, AEMWE commercialization is hindered primarily by the lack of a reliable anion exchange membrane (AEM) for long-term cell durability. In this study, a poly(fluorene)-based PFAA-QA AEM is developed with a simple structure, exhibiting satisfactory OH− conductivity (>174.6 mS cm−1 at 80 °C), good mechanical properties (tensile strength >35 MPa and elongation at break >51%), and excellent alkaline stability (>2000 h in 3 m KOH at 80 °C). These characteristics allow PFAA-QA-based AEMWEs to demonstrate a high cell performance (3.95 A cm−2 at 70 °C and 1.95 V) and long-term durability at high current densities (1.5 A cm−2 for 2400 h at 70 °C). Therefore, the durability of these AEMWEs surpasses that of most AEMWEs with a low voltage decay rate (>29 mV kh−1).
Link: https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.202501038
본 사이트는 IE 상위버전에 최적화 되어있습니다.