Sustainion® XC-2 Alkaline Ionomer 5% in ethanol
5% Sustainion ionomer in ethanol mixture (25 ml). It is designed for use in the cathodes of CO2 electrolyzers and can inhibit water electrolysis. The ionomer is shipped in the chloride form and needs to be converted to the hydroxide form. The later step is often done after the catalyst ink containing the ionomer is deposited on the electrode.
The XC series may offer higher adsorption of CO2 in some cases. XC-2 is the slightly less hydrophilic grade of this series.