人工晶体学报2017，Vol.46Issue(3)：490-494,500,6.
Fe掺杂Mn/TiO2低温脱硝催化剂的催化性能研究
Catalytic Performance of Fe-doped Mn/TiO2 Catalysts for Low-temperature Denitration
摘要
Abstract
The Fe-Mn/TiO2 catalysts for low-temperature denitration with different dosages of Fe were prepared by oxidation precipitation-impregnation method.The catalytic activity was discussed at 80-180 ℃.The physical and chemical properties were characterized using XRD, BET, TG, H2-TPR, NH3-TPD.The results show that there is no change in main crystal phase of Mn/TiO2 along with the addition of Fe and the main crystal phase is still anatase while FeOx and MnOx highly dispersed on the carrier surface with amorphous structure.According to the results analysis, it turns out that the micro-structure and surface acidity could be improved effectively with the addition of Fe.Catalyst dispersion, specific surface area and the amount of Bronsted acid sites are increase significantly, accordingly leading to the improvement in catalytic activity.Specifically, the NO conversion of 0.10 Fe-Mn/TiO2 could be up to 90% at 120 ℃.关键词
氧化沉淀-浸渍/脱硝催化剂/Fe掺杂/Mn/TiO2Key words
oxidation precipitation-impregnation/denitration catalysts/Fe-doped/Mn/TiO2分类
化学化工引用本文复制引用
刘纳,何峰,谢峻林,胡华,李凤祥,方德..Fe掺杂Mn/TiO2低温脱硝催化剂的催化性能研究[J].人工晶体学报,2017,46(3):490-494,500,6.基金项目
国家"十二五"科技支撑计划(2011BAE29B02) （2011BAE29B02）
