以V_2O_5为活性组分,通过对催化剂活性组分、载体结构和助剂等因素的研究,制备La-V/TiO_2-SiO_2催化剂,在n(甲醇)∶n(乙醇)=4∶1、空速1.5 h-1、氮气流量120 m L·min^(-1)、反应温度360℃和常压条件下,乙醇转化率84%,异丁醛选择性...以V_2O_5为活性组分,通过对催化剂活性组分、载体结构和助剂等因素的研究,制备La-V/TiO_2-SiO_2催化剂,在n(甲醇)∶n(乙醇)=4∶1、空速1.5 h-1、氮气流量120 m L·min^(-1)、反应温度360℃和常压条件下,乙醇转化率84%,异丁醛选择性67%。展开更多
NOx emission abatement catalysts V 2O 5 supported on various TiO 2 including anatase, rutile and mixture of both were investigated with various physico\|chemical measurements such as BET, NH\-3\|TPD, NARP, XRD and ...NOx emission abatement catalysts V 2O 5 supported on various TiO 2 including anatase, rutile and mixture of both were investigated with various physico\|chemical measurements such as BET, NH\-3\|TPD, NARP, XRD and so on, and the effect of TiO\-2 surface properties on the SCR(selective catalytic reduction) activity of V\-2O\-5/TiO\-2 catalysts was studied. It was found that the TiO\-2 surface properties had strong affect on the SCR activity of V\-2O\-5/TiO\-2 catalysts. The stronger acidic property resulted in the higher exposure of active sites as well as the higher SCR activity.展开更多
文摘NOx emission abatement catalysts V 2O 5 supported on various TiO 2 including anatase, rutile and mixture of both were investigated with various physico\|chemical measurements such as BET, NH\-3\|TPD, NARP, XRD and so on, and the effect of TiO\-2 surface properties on the SCR(selective catalytic reduction) activity of V\-2O\-5/TiO\-2 catalysts was studied. It was found that the TiO\-2 surface properties had strong affect on the SCR activity of V\-2O\-5/TiO\-2 catalysts. The stronger acidic property resulted in the higher exposure of active sites as well as the higher SCR activity.
