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Promoting effect of MoO3 on the NOx reduction by NH3 over CeO2/TiO2 catalyst studied with in situ DRIFTS
Liu, ZM; Zhang, SX; Li, JH; Ma, LL;马玲玲(多)
2014
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号144页码:90-95
摘要A series of MoO3-doped CeO2/TiO2 catalysts prepared by the impregnation method were investigated for the selective catalytic reduction of NO,c by NH3(NH3-SCR). It was found that CeO2-MoO3/TiO2 catalyst is much more active than CeO2/TiO2 for NH3-SCR and the optimum MoO3 loading is 5%. The mechanistic cause of the promoting effect of MoO3 on the activity of CeO2/TiO2 catalyst for NH3-SCR was studied using in situ diffuse reflectance infrared transform spectroscopy (DRIFTS). The results revealed that the highly dispersed molybdenum on CeO2-MoO3/TiO2 catalyst not only resulted in more Brensted acid sites formed on the catalyst surface, but also reduced the thermal stability of the inactive nitrate specie, leaving more active sites available for the adsorption of NH3, both of which are favorable for the promotion of SCR activity. (C) 2013 Elsevier B.V. All rights reserved.
关键词Nitrogen oxides Selective catalytic reduction CeMoTi DRIFTS
学科领域Chemistry; Engineering
DOI10.1016/j.apcatb.2013.06.036
收录类别SCI
WOS记录号WOS:000327686200012
引用统计
被引频次:143[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224816
专题核技术应用研究中心
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GB/T 7714
Liu, ZM,Zhang, SX,Li, JH,et al. Promoting effect of MoO3 on the NOx reduction by NH3 over CeO2/TiO2 catalyst studied with in situ DRIFTS[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,144:90-95.
APA Liu, ZM,Zhang, SX,Li, JH,&Ma, LL;马玲玲.(2014).Promoting effect of MoO3 on the NOx reduction by NH3 over CeO2/TiO2 catalyst studied with in situ DRIFTS.APPLIED CATALYSIS B-ENVIRONMENTAL,144,90-95.
MLA Liu, ZM,et al."Promoting effect of MoO3 on the NOx reduction by NH3 over CeO2/TiO2 catalyst studied with in situ DRIFTS".APPLIED CATALYSIS B-ENVIRONMENTAL 144(2014):90-95.
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