Nafion N-117 Proton Exchange Membrane
Nafion 117 Membrane Overview
Category: Ion Exchange Membrane
Sub-Category: Proton Exchange Membrane
Summary:
Nafion™ membranes, constructed from a perfluorosulfonic acid (PFSA)/polytetrafluoroethylene (PTFE) copolymer, function as cation-conducting solid electrolytes in a broad spectrum of electrochemical applications. Their versatility is enhanced by the availability of various grades, each exhibiting unique properties, enabling precise application-specific selection.
Nafion™ Grades at a GlanceNafion™ membranes are available in different thicknesses and structures, each suited for specific applications:
Solution-Cast (NR211, NR212)
Thin, low resistance
Fast ion transport
Ideal for fuel cells and energy storage
Extrusion-Cast (N115, N117, N424)
Thick, mechanically strong
Stable under high current and temperature
Best for hydrogen production and electrolysis
Reinforced variants available
Why Nafion™ 117?
High strength due to extrusion casting
Stable performance in harsh electrolytic environments
Widely used in hydrogen generation and PEM water splitting
Reliable for long-duration experiments and industrial setups
Applications Across the Electrochemical Landscape
Nafion™ membranes, including the 117 variant, are widely used in:
Water electrolyzers
Hydrogen fuel cells
PEM-based research reactors
Electrochemical CO₂ reduction systems
Redox flow batteries
Photoelectrochemical devices
Their proton conductivity, chemical resistance, and long service life make them indispensable for modern clean-energy technologies.