Porous transport layers in proton exchange membrane water electrolyzers: Recent progress, trends and future perspectives

Key Points

• Proton exchange membrane water electrolyzers improve efficiency with enhanced transport layers, advancing greener hydrogen production.
• Recent advancements include novel materials and designs for transport layers that boost overall electrochemical performance.
• Observational analysis highlights how surface morphology and porosity of transport layers affect efficiency and durability.
• Future perspectives suggest focusing on scalable manufacturing techniques to enhance implementation in renewable energy systems.