DuPont Nafion 115 Proton Exchange Membrane

This product is developed for use as an electrolyte membrane in electrochemical devices such as fuel cells, vanadium redox flow batteries, electrolysis cells, electrodialysis systems, and electrochemical sensors. The Nafion 115 membrane features a thickness of 127 μm and an areal density of 250 g/m², offering a proton conductivity of 0.083 S/cm and an ion exchange capacity of 0.89 meq/g. These properties contribute to its excellent thermal stability, high-temperature resistance, and good electrochemical oxidation resistance. A recommended pre-treatment procedure involves sequential immersion in hydrogen peroxide and dilute sulfuric acid at 80°C, though the membrane may also be used after simple electrolyte soaking depending on established user protocols. This product is suitable for researchers requiring a consistent and durable proton exchange membrane for catalyst-coated or direct use configurations.