An EMMO-based domain ontology for proton-exchange membrane fuel cells.
Proton-exchange membrane fuel cell domain ontology
PEMCatalystLayer
A layer that acts as a catalyst in a proton-exchange membrane fuel cell (PEMFC).
Typically platinum or a platinum alloy, this material is coated onto the electrodes and facilitates the chemical reactions of hydrogen and oxygen.
MEA
MembraneElectrodeAssembly
Main component of a proton-exchange membrane fuel cell (PEMFC), including the electrodes, electrolyte, catalyst, and gas diffusion layers.
An ink of catalyst, carbon, and electrode are sprayed or painted onto the solid electrolyte and carbon paper is hot pressed on either side to protect the inside of the cell and also act as electrodes.
GDL
GasDiffusionLayer
A porous layers provide pathways for gases.
PEMAnode
The negative electrode where hydrogen gas is supplied. At the anode, hydrogen is split into protons (H⁺) and electrons (e⁻).
PEMCathode
The positive electrode where oxygen is supplied. Protons, electrons, and oxygen combine at the cathode to produce water and heat.
BipolarPlate
A plate that is grooved with gas flow channels.
Bipolar plates are used distribute the fuel and oxidant gases to the electrodes in fuel cells. They may also act as electrical current collectors, completing the electrical circuit.
PEMFC
PolymerElectrolyteMembraneFuelCell
ProtonExchangeMembraneFuelCell
A fuel cell that splits hydrogen into protons and electrons, generating an electric current and combining the protons with oxygen to produce water.
PEMAnodicReaction
Anodic reaction of a PEM fuel cell. Splits hydrogen into protons and electrons: H2 --> 2H+ + 2e-
PEMCathodicReaction
Cathodic reaction of a PEM fuel cell. Creates water by reacting oxygen with protons and electrons 1/2 O2 + 2H+ + 2e- --> H2O
PolymerElectrolyteMembrane
ProtonExchangeMembrane
A semipermeable membrane designed to conduct protons while acting as an electronic insulator and reactant barrier, e.g. to oxygen and hydrogen gas.
A proton-exchange membrane (PEM) is generally made from ionomers.
Also known as polymer-electrolyte membrane.