Fuel-Cell Catalyst Layers

What this topic covers

How catalyst, ion-conducting material and porous structure form an electrochemical reaction zone.

Core catalyst ideas

Catalyst layers must bring together reactant gas, ionic conduction, electronic conduction and catalytic sites.

Transport losses can limit performance even when catalyst chemistry is highly active.

Layer formulation and manufacturing are specialist processes and are kept high-level.

System tradeoffs

Catalyst layers must combine reaction sites with gas, electron and ion transport.

Performance evidence

Lower PGM loading is valuable only if performance and service life remain acceptable.

Lifecycle perspective

Hydrogen systems involve flammable gas and specialized electrochemical hardware, so operating details are excluded.