Proton-exchange membrane
ID: proton-exchange-membrane
A proton-exchange membrane (PEM), also known as a polymer electrolyte membrane, is a type of membrane that conducts protons (hydrogen ions) while acting as an insulator for gases such as hydrogen and oxygen. PEMs are primarily used in fuel cells and electrolyzers, where they facilitate the electrochemical reactions by allowing protons to pass through while blocking electrons and gases.
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