Nafion NR211 & NR212 Proton Exchange Membranes
- Chemically stabilized formulation significantly reduces fluoride ion release
- Excellent mechanical strength and dimensional stability
- Choose between NR211 (25.4μm) for high power density or NR212(50.8μm) for enhanced mechanical properties
- Ideal for fuel cells, electrolyzers, and energy storage systems
- Backing film and coversheet facilitate automated manufacturing processes
Nafion NR211 & NR212 Proton Exchange Membranes – Industry-leading perfluorosulfonic acid (PFSA) membranes designed for high-performance electrochemical applications. These chemically stabilized membranes deliver exceptional proton conductivity, superior chemical durability, and reduced fluoride ion release – making them the preferred choice for fuel cells, water electrolyzers, and flow batteries. Available in two thickness options – NR211 (25.4 μm / 1 mil) for higher power density, andNR212 (50.8 μm / 2 mil) for enhanced mechanical strength – to match your specific application requirements.
Standard Dimensions
- Widths: 305 mm, 610 mm (custom widths available: 200-610 mm in 3.175mm increments)
- Length: Standard 100 m rolls (10 m and 50 m available as special order)
- Core Size: 6 in ID standard (3 in ID for rolls <25 m)
Membrane Types and Properties
| Property | Details |
|---|---|
| Material | Perfluorosulfonic acid (PFSA)/PTFE copolymer |
| Available Sizes | 10 × 10 cm, 30 × 30 cm |
| Customization | Yes, available upon request |
| Proton Conductivity | ~0.083 S/cm (hydrated, 25°C) |
| Acid Capacity | ~0.89 meq/g |
| Water Uptake | ~38% |
| Specific Gravity | 1.98 |
| Applications | PEM fuel cells, water electrolyzers, electrochemical devices |