Platinum & hydrogen guide
PGM Substitution & Technology Choice
Why platinum, iridium and non-PGM alternatives cannot always be substituted one-for-one.
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
Why platinum, iridium and non-PGM alternatives cannot always be substituted one-for-one.
Core energy-system ideas
Different electrochemical reactions favor different catalyst properties.
Substitution can shift demand from one constrained material to another.
Technology choice therefore affects the whole critical-material portfolio.
Important tradeoffs
Collection and recovery yield are different parts of circularity and should be tracked separately.
Material and performance evidence
Primary and secondary platinum supply are complementary rather than mutually exclusive.
Lifecycle perspective
Chemical extraction and refining procedures are hazardous and intentionally outside this site.