Chemical Composition
TYPICAL| Element | Content | Performance Role |
|---|---|---|
| Platinum/Palladium (Pt, Pd) | 99.95-99.99 wt% | Precious metal purity — assay certified |
| Surface area (black grades) | 20-60 m²/g | Catalytic activity — the black-powder value |
| Particle size (paste grades) | 0.5-5 µm | Printing and sintering behavior |
| Supported grades | Pt/C, Pd/C at 20-60 wt% | Fuel cell and chemical catalyst standard form |
| Impurities (Fe, Cu, others) | < 100-500 ppm | Poison control — catalyst deactivation |





