Improved NO reduction by using metal-organic framework derived MnO -ZnO.

Derivatives based on metal frameworks (MOFs) are attracting more and more attention in various research fields. MOF-based derivatives % MnO -ZnO are easily synthesized by the thermal decomposition of Mn/MOF-5 precursors. Multiple technological characterizations have been conducted to ascertain the strengthening interaction between Mn species (Mn or Mn) and Zn (, XRD, FTIR, TG, XPS, SEM, H-TPR and Py-FTIR). The 5% MnO -ZnO exhibits the highest NO conversion of 75.5% under CH-SCR. FTIR and NO-TPD analysis showed that monodentate nitrates, bidentate nitrates, bridged bidentate nitrates, nitrosyl groups and C H O species were formed on the surface, and further hydrocarbonates or carbonates were formed as intermediates, directly generating N, CO and HO.