As the world races toward carbon-neutral hydrogen, proton-exchange-membrane water electrolysis (PEMWE) stands out for its high current density and rapid response. Yet the high cost and performance limits of titanium porous transport layers (PTLs) still block widespread deployment. Now, researchers from KAIST, KIER and Hyundai Motor Company have delivered a comprehensive study on a triple-layer Ti-PTL that shreds voltage loss, boosts catalyst use and is ready for scalable production—offering a clear path to cheaper, greener hydrogen.
Why Triple-Layer PTLs Matter
Innovative Design and Features
Applications and Future Outlook
This work provides a blueprint for pore-graded, ultra-porous PTLs that unite high performance with low-cost, roll-to-roll fabrication. Expect wider adoption as electrolyzer OEMs scale toward gigawatt green-hydrogen plants—and watch for further advances from the KAIST-led team as they translate lab wins into stack-ready hardware!
Nano-Micro Letters
Experimental study
Triple‑Layer Porous Transport Layers with Ultra‑High Porosity for Enhanced Oxygen Transport and Catalyst Utilization in Water Electrolysis
30-Jun-2025