Cascade NH₃ Oxidation and N₂O Decomposition via Bifunctional Co and Cu Catalysts.

ABSTRACT: The selective catalytic oxidation of NH₃ (NH₃-SCO) to N₂ is an important reaction for the treatment of diesel engine exhaust. Co₃O₄ has the highest activity among non-noble metals but suffers from N₂O release. Such N₂O emissions have recently been regulated due to having a 300× higher greenhouse gas effect than CO₂. Here, we design CuO-supported Co₃O₄ as a cascade catalyst for the selective oxidation of NH₃ to N₂. The NH₃-SCO reaction on CuO-Co₃O₄ follows a de-N₂O pathway. Co₃O₄ activates gaseous oxygen to form N₂O. The high redox property of the CuO-Co₃O₄ interf

SUBMITTER: Guan X 

PROVIDER: S-EPMC10594585 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature