Nafion 212 Proton Exchange Membrane

Overview

Nafion 212 is a mid-thickness (≈50.8 µm) PFSA membrane that balances conductivity, mechanical integrity and gas barrier properties. It is a versatile choice for most laboratory PEM fuel cell and electrolysis experiments.

Function
The perfluorinated matrix ensures oxidative and thermal stability, while the sulfonic acid domains form proton-conducting channels under hydrated conditions.

Key features

• 50.8 µm thickness – good compromise between 211 and 115
• Low area-specific resistance
• Suitable for cells upto 30 × 30 cm
• Compatible with common MEA fabrication methods
• Reliable for repeatable educational demonstrations
  
  

Applications

• General-purpose PEM fuel cell labs
• PEM water splitting
• Electrochemical CO₂ reduction (acidic side)
• Material validation against industry-standard Nafion