A Review on the Catalytic Decomposition of NO by Perovskite-Type Oxides

Abstract

Direct catalytic decomposition of NO has the advantages of being a simple process, producing no secondary pollution, and being good for the economy, which has attracted extensive research in recent years. Perovskite-type mixed oxides, with an ABO3 or A2BO4 structure, are promising materials as catalysts for NO decomposition due to their low cost, high thermal stability, and, of course, their good catalytic performances. In this review, the influence factors, such as A-site substitution, B-site substitution and reaction conditions on the catalytic performance of catalysts have been expounded. The reaction mechanisms of direct NO decomposition are also discussed. Finally, major conclusions are drawn and some research challenges are highlighted.

The Application of MnO_x/TiO₂ Catalyst in SCR-NH₃ Reaction

“…A similar situation exists in the African continent [13,14]. This transportation scenario is directly related to the increase in atmospheric pollutant emissions [6,15,16]. The NOx emissions from commercial vehicle exhaust can be reduced through SCR technology, thereby achieving emissions compliance [17,18].…”

“…In commercial industrial flue gas treatment systems, ammonia (NH3) is one of the reducing agents with high reductive efficiency. Utilizing NH3 to reduce NOx to N2 is a thermodynamically spontaneous reaction at low temperatures, but the kinetic process is too slow, hence the need for metal oxide catalysts to enhance the reaction rate [4][5][6].…”

Low-temperature direct decomposition of NO over Rh/NC-MnFe catalyst: activity, stability and mechanism

“…Over the decades, various materials such as noble metals, 12,13 transition metal oxides, 14,15 perovskite-type composite oxides, 16,17 and zeolites 18,19 have been proposed to catalyze the direct decomposition of NO. As the most widely studied catalyst, the three-way catalyst with Pt, Pd, and Rh as the active components was found to have high direct NO decomposition activity.…”

Density functional theory study of the adsorption of NO on CunX (n = 2–8; X = Cu, K) clusters

“…Nitric oxide easily binds to hemoglobin, causing human hypoxia and posing risks to human health. Moreover, it contributes to the formation of acid rain, acid mist, and photochemical smog, thus exacerbating global warming [2–4]. Although there are various methods to reduce NO emissions [5–10], there are many deficiencies.…”