SO2 oxidation over the V2O5/TiO2 SCR catalyst
SO2 oxidation over the V2O5/TiO2 SCR catalyst
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DOI：
10.1023/a:1009065030750
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发表时间：
2001-04
影响因子：
2.8
通讯作者：
Hiroyuki Kamata;H. Ohara;Katsumi Takahashi;Akinori Yukimura;Y. Seo
中科院分区：
文献类型：
--
作者：
Hiroyuki Kamata;H. Ohara;Katsumi Takahashi;Akinori Yukimura;Y. Seo
采用红外光谱（DRIFT）和SO2氧化性能测试等方法研究了V2 O 5负载量对V2 O 5/TiO 2 SCR催化剂SO2氧化活性的影响。发现添加到催化剂中的氧化钒在TiO 2载体上分散良好，直到被单层V2 O 5覆盖。SO2氧化速率随V2 O 5负载量的增加而线性增加，并随负载量的增加而达到饱和。与钒原子结合的羟基V-OH可能被SO2氧化改变。V=O和V-OH基团都可能参与SO2和SO 3的吸附和解吸。
The effects of V2O5loading of the V2O5/TiO2SCR catalyst on SO2oxidation activity were examined by infrared spectroscopy (DRIFT) and SO2oxidation measurement. Vanadium oxide added to the catalyst was found to be well dispersed over the TiO2carrier until covered with monolayer V2O5. The rate of SO2oxidation increased almost linearly with V2O5loading below the monolayer capacity and attained saturation with further increase. The hydroxyl groups bonded to vanadium atoms, V–OH, might be altered by SO2oxidation. Both V=O and V–OH groups are likely involved in the adsorption and desorption of SO2and SO3.