Synthesis, activity and hydrophobicity of Fe-ZSM-5@silicalite-1 for NH3-SCR

Fe‐Beta@CeO2 core‐shell catalyst with tunable shell thickness for selective catalytic reduction of NOx with NH3

“…Figure 10B exhibits Figure S4). It should be promoted by the coating of CeO 2 shell over Fe-Beta catalyst and be accounting for the enhancement of NH 3 -SCR 53,54 It can be deduced that the formation of N 2 O 4 and nitrite species, respectively, It can be deduced that the formation of N 2 O 4 and nitrite species, to some degree, can account for the high deNO x performance of Fe-Beta@CeO 2 -2 catalyst at the low temperature. With the increasing of temperature, almost all bands disappear as temperature reaches to 3008C.…”

Highly dispersed Fe2O3 on carbon nanotubes for low-temperature selective catalytic reduction of NO with NH3

“…Some researchers have used suitable supports to improve lowtemperatures SCR performance of iron oxides, such as Fe/BEA 5 , Fe/ZSM-5 6 and Fe 2 O 3 /TiO 2 7 . But low-temperature activity was still unsatisfactory.…”

Promotion effect of urchin-like MnOx@PrOxhollow core–shell structure catalysts for the low-temperature selective catalytic reduction of NO with NH3

“…Also, the diffraction peaks of both catalysts shied slightly to higher angles, which was attributed to that the manganese ions (Mn 4+ ¼ 53Å, Mn 3+ ¼ 64.5Å, Mn 2+ ¼ 83Å) being partly diffused into the PrO x (Pr 4+ ¼ 85Å, Pr 3+ ¼ 99Å) lattice during the heating process, which led to lattice shrinkage. 29,30,[39][40][41] Additionally, as compared with the hollow MnO x , the characteristic XRD peaks of the MnO 2 and Mn 2 O 3 were weaker and wider, which revealed that smaller mixed oxide particles with a lower degree of crystallization were formed. According to some reports, 40,42,43 the decrease in crystallization degree led to increase of surface adsorbed oxygen, thus contributing to an improved SCR performance.…”