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Sustainion X37-50 Grade RT

Sustainion X37-50 Grade RT

Product Details:


Product Description

Sustainion X37-50 Grade RT

Product Code: 72500315

Sustainion X37-50 Grade RT is an anion exchange membrane with a dry thickness of50 microns and is designed for use with a supporting electrolyte. It has beenoptimized for use in alkaline water electrolyzers and CO2 electrolyzers.The membrane will be shipped with an ethylene glycol plasticizer to preventcracking. The plasticizer is designed to wash out during activation.

Pleasenote that this membrane is currently only available in 23 cm x 28 cm sheets.

AnionConductivity of Sustainion X37 in Different Electrolytes

Anionconductivity of Sustainion X37 membrane for hydroxide ions, carbonate ions, andchloride ions are provided in the graph below.

Pretreatment Information:

For electrochemical CO2 reductionapplications, the anion exchange membrane should be converted to the carbonateor bicarbonate form by treating the membrane initially with 0.1 to 0.5 M KOH orNaOH solution and then with 0.1 to 0.5 M water soluble carbonate or bicarbonatesalt solutions (such as potassium carbonate or potassium bicarbonate that isdissolved in de-ionized water or distilled water).  Fully submerging theanion exchange membrane into KOH or NaOH solution for 6 to 12 hours and then tothe desired carbonate or bicarbonate salt solution for a period of 48-72 hourswould be sufficient to fully convert the membrane into either carbonate orbicarbonate form.  After rinsing the membrane (which is in the carbonateform) with deionized water or distilled water, it can be assembled inside theelectrochemical setup for electrochemical CO2 reduction experiments. Whilethe submersion of the membrane into the KOH or NaOH can be skipped, for suchsituations, a longer submersion time may be required in order to fully convertthe membrane to carbonate or bicarbonate form.  Initial conversion to OH- formsignificantly improves the carbonate ion exchange process due to expanded poresizes.

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