Enhanced transport in washcoated monoliths: Application to selective lean NOx reduction and ammonia oxidation

Washcoated monolithic reactors are extensively used in vehicle emission control systems to reduce pollutants from engine exhaust. Selective catalytic reduction (SCR) with the downstream ammonia slip catalyst (ASC) are deployed in diesel emission control to remove NOx and prevent ammonia release. Earlier works have shown that washcoat diffusion can be rate controlling for both SCR and ASC. Here we use sacrificial agents (polymer, yeast) to...