The effect of NO and O 2 concentration on NO X storage over a lean NO X trap: An experimental and modelling study

Selective decontamination of the reactive air pollutant nitrous acid via node-linker cooperativity in a metal–organic framework

“…In these regards, nitrous acid is a reservoir for NO x that may be released at a later time, unless properly mitigated. 17,18 2NO 2 + H 2 O (surface) / HONO + HNO 3 (R1)…”

Turbine and exhaust ports thermal insulation impact on the engine efficiency and aftertreatment inlet temperature

“…Depending on the particular SCR coating components, these devices can be fitted to provide high NO x conversion efficiency at low (150 − 450 o C, Cu-zeolite) or high (350 − 600 o C, Fe-zeolite) temperature ranges [9]. By contrast, LNT devices show their maximum NO x trapping efficiency within a temperature window ranging from 250 o C to 450 o C [10], being more insensitive to NO and O 2 as the temperature increases [11].…”

Electrification-Enhanced Low-Temperature NOx Storage–Reduction on Pt and K Co-Supported Antimony-Doped Tin Oxides

“…During NO x adsorption, the NO oxidation to NO 2 is a key step since NO 2 is more readily adsorbed than NO. ,, Therefore, NO oxidation by O 2 on Pt–K/ATO in steady electrified modes is first carried out for comparison. For the electrified reaction with constant power (Figure b), the NO 2 /NO ratio begins to increase at 110 °C and reaches a maximum at 241 °C, with the ratio remaining far above that of the isothermal reaction below 325 °C.…”