Journal
ASIAN JOURNAL OF CHEMISTRY
Volume 25, Issue 16, Pages 9079-9082Publisher
ASIAN JOURNAL OF CHEMISTRY
DOI: 10.14233/ajchem.2013.15005
Keywords
CeO2; Citric acid method; Selective catalytic reduction
Categories
Funding
- Scientific Problem Tackling Program of Science and Technology Commission of Shanghai Municipality [11dz2281700, 10dz1201401, 10dz1201402]
- Innovation Program of Shanghai Municipal Education Commission [10YZ155]
- Choose and Cultivation of Excellent Young Teachers Program of Shanghai Municipal Education Commission [sdl09008]
- Talent Induction Program of Shanghai University of Electric Power [K-2009-03]
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Pure CeO2 catalysts were prepared from different cerium precursors and their activities for selective catalytic reduction of NO with NH3 were investigated in the presence of O-2. The results showed that the catalysts prepared from cerium nitrate have better selective catalytic reduction performance and SO2 resistance. As can be seen from the BET, XRD, TPR, TPD and XPS results, the good performance of the catalysts prepared from cerium nitrate should be resulted from large surface area, good redox ability, high NH3 adsorption capacity and enrichment of Ce3+ on the surface accompanied by an increase of active oxygen content.
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