Fuel-Cell Platinum Durability

What this topic covers

Particle growth, dissolution, support corrosion and surface loss over time.

Core energy-system ideas

Platinum particles can change size and distribution during service.

Electrochemical dissolution and redeposition can alter active surface.

Support degradation can disconnect catalyst particles from the electrical network.

Important tradeoffs

Catalyst loading should be evaluated together with mass activity, transport, manufacturing and durability.

Material and performance evidence

Water, heat, gas purity and transient operation can change how effectively platinum catalyst layers perform.

Lifecycle perspective

The stack contains much more than platinum, so catalyst improvement does not eliminate balance-of-plant constraints.