Platinum & hydrogen guide
PEM Electrolysis & Platinum
Where platinum fits in proton-exchange-membrane water electrolysis.
Energy-system note: platinum matters in selected components, not everywhere hydrogen appears. Real equipment decisions require current manufacturer data, codes and qualified engineering.
What this topic covers
Where platinum fits in proton-exchange-membrane water electrolysis.
Core energy-system ideas
PEM electrolysis uses electricity to split water into hydrogen and oxygen.
Platinum is used at the cathode for the hydrogen-evolution reaction.
The anode oxygen-evolution reaction relies much more heavily on iridium-based PGM catalysts.
Important tradeoffs
PGM demand should therefore be tracked by metal and electrode rather than as one combined number.
Material and performance evidence
Electrolyzer efficiency, durability, electricity source, water quality and manufacturing yield affect system value.
Lifecycle perspective
This site excludes electrolysis operating conditions, gas handling and equipment procedures.