Commercial perfluorosulfonic acid membranes for vanadium
A series of perfluorosulfonic membranes is screened for application in vanadium redox flow batteries (VRFB): membranes of constant thickness 50 µm with different ion
Investigations of Dongyue Series Perfluorosulfonic Acid Membranes for Applications in Proton Exchange Membrane Fuel Cells (PEMFCs).
A series of perfluorosulfonic membranes is screened for application in vanadium redox flow batteries (VRFB): membranes of constant thickness 50 µm with different ion-exchange capacities ranging from 0.56 to 1.15 mol eq. g −1.
The perfluorosulfonic acid family of membranes includes a range of products from different manufacturers, under trade names of Nafion™ (DuPont), Flemion™ (Asahi Glass) and Hyflon™ (Solvay-Solexis) and Aquivion™ (Solvay), using, for example, different side chains. Such materials are often referred to as ionomer membranes.
Besides the limited thermal stability of perfluorosulfonic acid polymers itself, as a result of too low glass transition temperature, the limitations of the most widely used membranes with respect to high-temperature operation are primarily set by the dependence on water for proton mobility.
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