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Promotional effect of Ag-doped Ag-V/TiO2 catalyst with low vanadium loadings for selective catalytic reduction of NOX by NH3
Wang Zaihua1,2; Li Xinjun1; Song Wenji1; Chen Jinfa1; Li Tao1; Feng Ziping1
2011-08-01
Source PublicationREACTION KINETICS MECHANISMS AND CATALYSIS
Volume103Issue:2Pages:353-365
AbstractA series of Ag-doped Ag-V/TiO2 catalysts with low vanadium loadings were prepared by one-step sol-gel methods and the effects of the Ag doping on the selective catalytic reduction (SCR) of NOx with NH3 were investigated. The catalytic activity of the catalysts increased about 20% by the addition of 1-3 wt% of Ag. The catalysts were characterized by XRD and H-2-TPR. The results indicated that the V and Ag were well dispersed on the TiO2 support and the Ag doping inhibited the growth of TiO2 anatase crystallite and improved the oxidation ability of adsorption sites. The reduction temperature of vanadium oxide decreased and the activity for NH3-SCR enhanced. The doped Ag also had NH3-SCR activity, but it was very low. The durability of the catalysts was acceptable and the resistance to H2O was not very good. The effects of the calcination temperature and GHSV were also investigated; it was found that the optimal calcination temperature was 450 A degrees C and the GHSV should not be higher than 48,000 h(-1).
SubtypeArticle
KeywordAg-doped Ag-v/tio2 Catalyst Selective Catalytic Reduction Low Vanadium Loadings
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11144-011-0305-4
WOS Subject ExtendedChemistry
WOS KeywordLOW-TEMPERATURE SCR ; NITRIC-OXIDE ; PHOTOCATALYTIC ACTIVITY ; TITANIA CATALYSTS ; AG/AL2O3 CATALYST ; MIXED OXIDES ; AMMONIA ; OXIDATION ; MECHANISM ; SPECTROSCOPY
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical
WOS IDWOS:000292212700010
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10394
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 10049, Peoples R China
Recommended Citation
GB/T 7714
Wang Zaihua,Li Xinjun,Song Wenji,et al. Promotional effect of Ag-doped Ag-V/TiO2 catalyst with low vanadium loadings for selective catalytic reduction of NOX by NH3[J]. REACTION KINETICS MECHANISMS AND CATALYSIS,2011,103(2):353-365.
APA Wang Zaihua,Li Xinjun,Song Wenji,Chen Jinfa,Li Tao,&Feng Ziping.(2011).Promotional effect of Ag-doped Ag-V/TiO2 catalyst with low vanadium loadings for selective catalytic reduction of NOX by NH3.REACTION KINETICS MECHANISMS AND CATALYSIS,103(2),353-365.
MLA Wang Zaihua,et al."Promotional effect of Ag-doped Ag-V/TiO2 catalyst with low vanadium loadings for selective catalytic reduction of NOX by NH3".REACTION KINETICS MECHANISMS AND CATALYSIS 103.2(2011):353-365.
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