PEM electrolysis
PEM electrolysis is water electrolysis in which protons are conducted through a solid proton-exchange membrane that also separates the hydrogen and oxygen streams.
- Proton transport happens in a solid polymer, not a KOH solution.
- Hydrogen and oxygen are separated at the cell itself.
- Load can be modulated rapidly by varying current density.
Definition
PEM electrolysis is water electrolysis in which protons are conducted through a solid proton-exchange membrane that also separates the hydrogen and oxygen streams.
Purity
The absence of a liquid electrolyte inventory removes caustic carry-over as a credible contaminant.
Production
Stack design, membrane area and current density determine output; deionised water feed is mandatory.
Applications
Underlies both industrial hydrogen supply for combustion and consumer modality equipment.
Reference material only. CE Global publishes hydrogen production and PEM electrolysis engineering information. Nothing here is a medical, health, performance, emissions or fuel-saving claim.