Mn-based catalysts supported on γ-Al₂O₃, TiO₂ and MCM-41: a comparison for low-temperature NO oxidation with low ratio of O₃/NO.

ABSTRACT: Mn-Based catalysts supported on γ-Al₂O₃, TiO₂ and MCM-41 synthesized by an impregnation method were compared to evaluate their NO catalytic oxidation performance with low ratio O₃/NO at low temperature (80-200 °C). Activity tests showed that the participation of O₃ remarkably promoted the NO oxidation. The catalytic oxidation performance of the three catalysts decreased in the following order: Mn/γ-Al₂O₃ > Mn/TiO₂ > Mn/MCM-41, indicating that Mn/γ-Al₂O₃ exhibited the best catalytic activity. In addition, there was a clear synergistic effect between Mn/γ-Al₂O₃ and O₃, followed by Mn/TiO₂ and O₃. The characterization results of X

SUBMITTER: Liu L 

PROVIDER: S-EPMC9033454 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature