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DOE OSTI · 1876143

Gas Permeability Test Protocol for Ion-Exchange Membranes

Park, Eun Joo·Komini Babu, Siddharth·Kim, Yu Seung
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Abstract

The membrane-based electrolysis of water is a growing topic of interest due to the advantages of employing membranes in hydrogen production efficiency and system safety over the traditional alkaline water electrolysis. Ion-exchange membranes with low gas permeability are highly desirable for stable and safe operation of membrane-based water-splitting technologies, hence gas permeability through ion-exchange membranes needs to be properly assessed with standardized methods. We addressed three methods to measure gas permeability of ion-exchange membranes, a pressure permeation cell, chronoamperometry microelectrodes, and in situ testing of the membrane electrode assembly, and provide a guideline for choosing the appropriate method for the targeted operating conditions of the water electrolyzers.

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08 HYDROGENanion exchange membraneenergy sciencesgas permeabilityhydrogen permeabilityoxygen permeabilityproton exchange membranewater electrolysis

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Park, Eun Joo, Komini Babu, Siddharth, Kim, Yu Seung. 2022-07-13. Gas Permeability Test Protocol for Ion-Exchange Membranes. https://doi.org/10.3389/fenrg.2022.945654

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