Membrane

Nafion membranes are proton-conductive polymer film, also known as electrolyte or ionomer, that allow only protons to cross-over, the key function of Nafion proton exchange membrane fuel cells and water electrolyzers.

Dupont Nafion PFSA membranes are non-reinforced films based on Nafion PFSA polymer, a perfluorosulfonic acid/PTFE (polytetrafluoroethylene) co-polymer in the acid (H+) form. Nafion PFSA membranes are widely used for Proton Exchange Membrane (PEM) fuel cells and water electrolyzers. The membrane performs as a separator and solid electrolyte in a variety of electrochemical cells which require the membrane to selectively transport cations across the cell junction. The polymer is chemically resistant and durable.

What Nafion Membrane Thickness is Right for an Electrolyzer / Hydrogen Generation?

Ask about additional Nafion Membrane types!

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Nafion HP
Untreated Nafion® HP at 20.3 micrometers (0.8 mil) thick. The ultra-thin Nafion HP membranes are ..
$27.00
Nafion 211
Nafion® Membrane is used to separate the anode and cathode compartment of Proton Exchange Membrane f..
$23.00
Nafion XL
Untreated Nafion® XL at 27.5 micrometers (1.1 mil) thick. DuPont™ Nafion XL membrane is an extend..
$25.00
Nafion 212
Untreated Nafion 212 is 50.8 micrometers (2 mil) thick. The membrane is positioned between a ba..
$26.00
Nafion 115
Untreated Nafion 115 is 127 micrometers (5 mil) thick. DuPont™ Nafion® 115 membranes ar..
$27.00
Nafion 117
Untreated Nafion 117 is 183 micrometers (7.2 mil) thick. DuPont™ Nafion® 117 membranes ..
$32.00
Nafion 1110
Untreated Nafion 1110 is 254 micrometers (10 mil) thick. DuPont™ Nafion® 1110, EW 1100&..
$45.00
Nafion N324, Teflon Fabric Reinforced
Dupont's Nafion® N-324 is a perfluorosulfonic acid cation exchange membrane combining outstanding ch..
$68.00
Nafion N424, Teflon Fabric Reinforced
Dupont's Nafion® N-424 is a perfluorosulfonic acid cation exchange membrane combining outstanding ch..
$79.00
Nafion N438, Teflon Fabric Reinforced
Dupont's Nafion® N438 is a new product in the 400 series family.   This membrane represents the..
$86.00