Facile synthesis of tube-shaped Mn-Ni-Ti solid solution and preferable Langmuir-Hinshelwood mechanism for selective catalytic reduction of NO by NH3

SCR performance enhancement of NiMnTi mixed oxides catalysts by regulating assembling methods of LDHs‐Based precursor

“…At scope of 200–400 °C, the desorption peak could be correlative to the collapse of hydrotalcite‐like structure, which were removal from decomposition of layers anion according to the evolution of H 2 O, NO and CO 2 in MS analysis. Notably, there was a small peak at 564 °C corresponding to the release of CO 2 , which might be relative to the decomposition of CNO‐ …”

“…Among the transition metal mixed oxides catalysts, NiMnTi mixed oxides catalysts possessed better performance from various acquiring process, such as solution impregnation, one‐pot sol–gel and calcining layered double hydroxides (LDHs) precursor as our previous report . Many studies revealed that the strong synergistic effects between Ni and Mn species could result in markedly high NO x conversion . Meanwhile, most of the literature indicated that there is a strong interaction between the Mn species and the support, especially the manganese oxides and titania in samples prepared via different methods .…”

A Review of Low Temperature NH3-SCR for Removal of NOx

“…The catalytic performance of single transition metal oxides can also be improved by mixing with two or multi other metal oxides. Thus, transition metal oxides are widely reported to fabricate ternaryor multi-metal-based low-temperature NH 3 -SCR catalysts, which could improve the catalytic activity by the enlarged synergetic interactions [14,[72][73][74][75][76][77][78][79][80][81][82][83][84][85][86][87]. Fang et al [88] investigated the low-temperature NH 3 -SCR reaction over the Fe 0.3 Mn 0.5 Zr 0.2 catalyst and found that it showed an excellent deNO x activity with 100% NO conversion in the temperature range of 200-360 • C as compared to the Fe 0.5 Zr 0.5 and Mn 0.5 Zr 0.5 samples.…”

Comparative study of mesoporous NixMn6−xCe4 composite oxides for NO catalytic oxidation

“…The peak at 854.4 eV (with satellite 861.5 eV) was corresponding to Ni 2+ species; 32 and the peak at 856.5 eV origins from Ni 3+ species. 33 The Ni 3+ /Ni 2+ ratios of different samples were summarized in Table 1. When x was less than 3, the Ni 3+ /Ni 2+ rstly decreased and then increased.…”