| Literature DB >> 21276659 |
Xiaodong Wu1, Shuang Liu, Duan Weng, Fan Lin, Rui Ran.
Abstract
MnO(x)-CeO(2)-Al(2)O(3) mixed oxides were prepared by impregnating manganese acetate and cerium nitrate on alumina powders using the sol-gel method. The thermal stabilities of MnO(x)-CeO(2) and Al(2)O(3)-modified mixed oxides were evaluated by treating at 800 °C in dry air flow for 20h. The introduction of Al(2)O(3) markedly increases the textural stability of the catalyst with a relatively high dispersion of MnO(x) and CeO(2), remaining a strong synergistic effect between these two oxides. The NO oxidation activity of the ternary oxides experiences a smaller loss after high-temperature calcination, and a low soot oxidation temperature is attained in the presence of NO.Entities:
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Year: 2011 PMID： 21276659 DOI： 10.1016/j.jhazmat.2011.01.010
Source DB: PubMed Journal: J Hazard Mater ISSN： 0304-3894 Impact factor: 10.588