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    Isotopic Transient Kinetic Analysis of Soot Oxidation on Mn<sub>3</sub>O<sub>4</sub>, Mn<sub>3</sub>O<sub>4</sub>-CeO<sub>2</sub>, and CeO<sub>2</sub> Catalysts in Tight Contact Conditions by Marek Rotko, Karolina Karpińska-Wlizło

    Published 2025-01-01
    “…The reaction mechanism of soot oxidation on Mn (Mn<sub>3</sub>O<sub>4</sub>), Mn-Ce (Mn<sub>3</sub>O<sub>4</sub>-CeO<sub>2</sub>), and Ce (CeO<sub>2</sub>) catalysts in tight contact conditions was investigated using ITKA (isotopic transient kinetic analysis). The obtained results suggest that lattice-bulk oxygen from all studied catalysts takes part in the soot oxidation process but with varying relative contributions: for the Ce catalyst, this contribution is practically 100%, whereas with decreasing Ce content in Mn-Ce catalysts, the significance of lattice-bulk oxygen for soot oxidation diminishes. …”
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