Research progress in ceria-based catalysts for the selective catalytic oxidation of NH<sub>3</sub>

Abstract

The inadvertent release of ammonia into the atmosphere poses a significant threat to both human health and the environment. To mitigate NH 3 slip from industry (stationary source) and vehicle (mobile source) emission control systems, the selective catalytic oxidation of NH 3 (NH 3 -SCO) technique has been developed, with catalyst efficiency at its core. Ceria-based materials, renowned for their superior redox capacity, tunable surface states, and facile formation of robust metal-support interactions, are extensively employed in crafting NH 3 -SCO catalysts. This paper provides a comprehensive synthesis and review of the current research progress in ceria-based NH 3 -SCO catalysts, offering insights into future development directions.