Journal
APPLIED SURFACE SCIENCE
Volume 428, Issue -, Pages 526-533Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.09.175
Keywords
Nitrogen oxides; NH3-SCR; Ce-Sn catalyst
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Funding
- National Natural Science Foundation of China [21377010, 21677008, 21611130170]
- Beijing Municipal Natural Science Foundation [8162030]
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Ce-Sn binary oxide catalysts prepared by the hydrothermal method have been investigated for the selective catalytic reduction (SCR) of NOx with NH3. Compared with pure CeO2 and SnO2, Ce-Sn binary oxide catalyst showed significantly higher NH3-SCR activity. Moreover, Ce-Sn catalyst showed high resistance against H2O and SO2. The high catalytic performance of Ce-Sn binary oxide is attributed to the synergetic effect between Ce and Sn species, which not only enhances the redox property of the catalyst but also increases the Lewis acidity, thus promoting the adsorption and activation of NH3 species, which contributes to improving the NH3-SCR performance. (C) 2017 Elsevier B.V. All rights reserved.
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