Sustainion® X37-50 grade 60 Membrane 8.5×11 sheet
Sustainion® Anion Exchange Membrane with a dry thickness of 50 microns. They are moderately basic and designed for use with supporting electrolyte. Dioxide Materials has optimized them for use in alkaline water electrolyzers and in CO2 electrolyzers as described in Kutz et al. Energy Technology 5, 929-936 (2017) and Masel et al. ECS Transactions, 75 (14) 1143-1146 (2016).
See also patents 9,370,773, 9,481,939.
These are special membranes with very low concentrations of the ethylene glycol plasticizer, for those who want to avoid ethylene glycol. The lack of plasticizer makes these membranes more brittle. The grade 60 membranes should be activated for 3 hours in 1 M KOH at 55 oC before use.
Note: these membranes can be used in a room temperature CO2 electrolyzer after activation.