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- W2803139384 abstract "制备了一种新的氟掺杂氧化钒/氧化钛催化剂,探讨了掺杂模式、制备方法对低温SCR活性的影响.结果显示,在120~240℃反应温度下,由溶胶法制得的氟掺杂于钒(F-V)模式下的催化活性最佳,通过与未掺杂催化剂(COM)对比可知,在210℃时,氟掺杂催化剂的活性提高了35%,并于240℃时NO的脱除率达到了98.6%.通过X射线衍射试验(XRD)、透射电子显微镜(TEM)、比表面积测试(BET)、光电子能谱分析(XPS)以及H2程序升温还原(H2-TPR)等表征技术显示氟掺杂引起催化剂SCR活性提升主要与催化剂活性成分的良好分散性、粒子尺寸减小、比表面积及孔容增大、更强的氧化还原能力有关.另外,通过试验研究表明,氟掺杂催化剂不仅提升了SCR活性,拓宽了活性温度范围,而且还增强了抗硫与抗水性能." @default.
- W2803139384 created "2018-06-01" @default.
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- W2803139384 date "2018-02-25" @default.
- W2803139384 modified "2023-09-27" @default.
- W2803139384 title "NH 4 F对NH 3 低温选择性催化还原NO的影响研究" @default.
- W2803139384 hasPublicationYear "2018" @default.
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