Novel V2O5-CeO2/TiO2 catalyst with low vanadium loading for the selective catalytic reduction of NOx by NH3
Liu, ZM; Zhang, SX; Li, JH; Zhu, JZ; Ma, LL;马玲玲(多)
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
2014
卷号158页码:11-19
关键词Nitrogen oxides Selective catalytic reduction VCeTi Redox cycle
学科分类Chemistry; Engineering
DOI10.1016/j.apcatb.2014.03.049
英文摘要The effect of Ce on the activity and alkali resistance of V2O5/TiO2 catalyst for the selective catalytic reduction (SCR) of NOx by NH3 has been investigated. It was found that the addition of Ce not only reduced the vanadium loading of V2O5/TiO2 but also enhanced its activity and alkali resistance. The NOx conversion over 0.5%V2O5-5%CeO2/TiO2 was much higher than that over 1%V2O5/TiO2 catalyst. Based on the catalyst characterization, the redox cycle (V4+ + Ce4+ <-> V5+ + Ce3+) can account for the excellent NH3-SCR catalytic performance of 0.5%V2O5-5%CeO2/TiO2 catalyst. In situ diffuse reflectance infrared transform spectroscopy (DRIFTS) measurements revealed that the role of Ce on the V2O5-CeO2/TiO2 catalyst was to contribute to the formation of NO2 and monodentate nitrate species, both of which were reactive intermediates for the NH3-SCR of NOx. (C) 2014 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000339133500002
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被引频次:44[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/311005/224819
专题中国科学院高能物理研究所_核技术应用研究中心_期刊论文
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Liu, ZM,Zhang, SX,Li, JH,et al. Novel V2O5-CeO2/TiO2 catalyst with low vanadium loading for the selective catalytic reduction of NOx by NH3[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2014,158:11-19.
APA Liu, ZM,Zhang, SX,Li, JH,Zhu, JZ,&Ma, LL;马玲玲.(2014).Novel V2O5-CeO2/TiO2 catalyst with low vanadium loading for the selective catalytic reduction of NOx by NH3.APPLIED CATALYSIS B-ENVIRONMENTAL,158,11-19.
MLA Liu, ZM,et al."Novel V2O5-CeO2/TiO2 catalyst with low vanadium loading for the selective catalytic reduction of NOx by NH3".APPLIED CATALYSIS B-ENVIRONMENTAL 158(2014):11-19.
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