Proton-exchange membrane
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A proton-exchange membrane, or polymer-electrolyte membrane, is a semipermeable membrane generally made from ionomers and designed to conduct protons while acting as an electronic insulator and reacta
Leonard Niedrach (left) and Thomas Grubb (right), inventors of proton-exchange membrane technology.
Proton exchange membrane electrolysis is the electrolysis of water in a cell equipped with a solid polymer electrolyte that is responsible for the conduction of protons, separation of product gases, a
Proton-exchange membrane
…hydrogen gas. This is their essential function when incorporated into a membrane electrode assembly (MEA) of a proton-exchange membrane fuel cell or of a proton-exchange membrane electrolyser: separation of reactants and transport of protons while blocking a direct electronic pathway through the membrane. PEMs can be made from either pure…
Diagram of PEM electrolysis reactions.
PEM high pressure electrolyzer system
Polarization curve depicting the various losses attributed to PEM electrolysis cell operation.