催化作用
氮氧化物
选择性催化还原
氧化物
氧化还原
化学
热液循环
无机化学
二元化合物
吸附
化学工程
材料科学
多相催化
物理化学
有机化学
工程类
燃烧
作者
Zhiming Liu,Feng Xu,Zizheng Zhou,Yu Feng,Junhua Li
标识
DOI:10.1016/j.apsusc.2017.09.175
摘要
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.
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