Abstract
The catalyst obtained through the co-precipitation of Mn(Ac)2 and (NH4)2CO3 (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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Acknowledgments
This work is financially supported by the National Natural Science Foundation of China (21276184, U1332102), the Specialized Research Fund for the Doctoral Program of Higher Education of China (20120032110014) and the Program of Introducing Talents of Discipline to University of China (No. B06006).
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Dai, F., Yu, Y., Meng, M. et al. Effects of Synthesis Routes on the States and Catalytic Performance of Manganese Oxides Used for Diesel Soot Combustion. Catal Lett 144, 1210–1218 (2014). https://doi.org/10.1007/s10562-014-1268-7
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DOI: https://doi.org/10.1007/s10562-014-1268-7