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Effect of synthesis methods on activity of V 2 O 5 /CeO 2 /W

發(fā)布時(shí)間:2021-06-13 07:06
  The effect of synthesis methods on the activity of V/Ce/WTi catalysts was investigated for the selective catalytic reduction(SCR) of NOx by NH3. V/Ce/WTi-DP(deposition precipitation) catalyst showed excellent NH3-SCR performance, especially the better medium-temperature activity and the less N2O formation than V/Ce/WTi-IMP(impregnation). These catalysts were characterized by X-ray diffraction(XRD), Brumauer-Emmett-Teller(BET), X-ray photoelectron spect... 

【文章來(lái)源】:Journal of Rare Earths. 2016,34(03)EISCICSCD

【文章頁(yè)數(shù)】:9 頁(yè)

【文章目錄】:
1 Experimental
    1.1 Catalysts preparation
    1.2 Catalytic activity measurement
    1.3 Catalysts characterization
2 Results and discussion
    2.1 NH3-SCR catalytic activity
    2.2 Phase composition and surface area of catalysts
    2.3 Valence state and distribution of Ce species
    2.4 Reducibility of Ce species
    2.5 Surface adsorbed species of catalysts
        2.5.1 NH3adsorption
        2.5.2 Reaction between pre-adsorbed NH3species and NO+O2
        2.5.3 NOxadsorption
3 Discussion
4 Conclusions


【參考文獻(xiàn)】:
期刊論文
[1]Influence of calcination temperature on selective catalytic reduction of NOx with NH3 over CeO2-ZrO2-WO3 catalyst[J]. 李軍燕,宋忠賢,寧平,張秋林,劉昕,李昊,黃真真.  Journal of Rare Earths. 2015(07)
[2]Novel promoting effects of cerium on the activities of NOx reduction by NH3 over TiO2-SiO2-WO3 monolith catalysts[J]. 房志濤,林濤,徐海迪,吳干學(xué),孫萌萌,陳耀強(qiáng).  Journal of Rare Earths. 2014(10)



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