Journal
CATALYSIS LETTERS
Volume 144, Issue 7, Pages 1210-1218Publisher
SPRINGER
DOI: 10.1007/s10562-014-1268-7
Keywords
Heterogeneous catalysis; Activity; Characterization; Soot combustion; Oxygen species
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Funding
- National Natural Science Foundation of China [21276184, U1332102]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20120032110014]
- Program of Introducing Talents of Discipline to University of China [B06006]
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The catalyst obtained through the co-precipitation of Mn(Ac)(2) and (NH4)(2)CO3 (denoted as Mn-Ac-NH4) displays the highest performance for soot oxidation. Compared with other MnOx catalysts, the catalyst Mn-Ac-NH4 exhibits much better reducibility and more uniform sponge-like nanostructure. The characterization results indicate that the oxygen species on the surface of Mn-Ac-NH4 are more active for soot combustion. The NO species can also be captured and oxidized by these oxygen species, generating more reactive NO2 which can enhance soot oxidation.
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