Engineering
Optimizing Catalyst Washcoat Distribution in a Monolithic Catalytic Converter
Quick fact
The washcoat on a catalytic converter is typically only 10–150 micrometers thick, yet it holds the precious metal catalysts (like platinum, palladium, and rhodium) that convert harmful gases. Optimizing its distribution can reduce precious metal usage by up to 30% while maintaining the same conversion efficiency.
Why this is interesting
You know that catalytic converter under your car—it's basically a brick of ceramic with thousands of tiny channels. But the real magic happens in a layer so thin you could miss it: the washcoat. How does getting that layer just right make the difference between a clean exhaust and a clogged one?