Characterization of the NO-soot combustion process over La0.8Ce0.2Mn0.7Bi0.3O3 catalyst

Monitoring intermediate species formation by DRIFT during the simultaneous removal of soot and NOx over LaAgMnO3 catalyst

“…Generally, NO2-assisted catalytic combustion of soot (known as continuously regenerating trap-CRT) involves two steps. First, NO is catalytically oxidized to produce NO2, which is a strong oxidizer that reacts with soot collected on a filter placed downstream at a temperature much lower than that required for either NO and/or O2 combustion [9][10][11][12][13][14][15][16][17][18][19]. The main reaction products of the soot-NO2 reaction are NO and CO2, although few NOx can be reduced until N2.…”

“…For instance, Bin et al [15], evidenced the formation of chelating bridging and monodentate nitrates on MnOx sites on La0.8Ce0.2Mn0.7Bi0.3O3 catalyst. Zhu et al [20], confirmed that bridged bidentate nitrites were the main adsorbed species over CeO2 and transition-doped ceria (M0.1Ce0.9O2) catalysts, since the bridged bidentate nitrates were scarcely observed.…”

A novel low temperature catalyst regenerated from deactivated SCR catalyst for Hg0 oxidation

“…The O 1s spectrum was divided into three main peaks at less than 530.0 eV (assigned to lattice oxygen, O lat ), around 531.5 eV (assigned to the chemical adsorbed oxygen, such as hydroxyl oxygen, O ad ) and at above 533.0 eV (assigned to adsorbed [36]. As shown in Fig.…”

Investigation of LaMnO3 catalyst loaded on HZSM‐5 zeolite for CO catalytic oxidation

“…The crystal structure of perovskite is shown in Figure 1. Because of the excellent thermal stability and outstanding catalytic activity, perovskite catalyst performs well in lots of catalytic reactions 4–9 . The difficulty of valence state cycling in B site (B 3+ ↔ B 4+ , B 2+ ↔ B 3+ ) depends on the kind of transition metal cations.…”

“…Because of the excellent thermal stability and outstanding catalytic activity, perovskite catalyst performs well in lots of catalytic reactions. [4][5][6][7][8][9] The difficulty of valence state cycling in B site (B 3+ $ B 4+ , B 2+ $ B 3+ ) depends on the kind of transition metal cations. The valence state cycling influences the regeneration of active species.…”