Study on the effect of Mn-Ce/Ti-PILC on low temperature SCR activity prepared with different precursors
前驱物对Mn-Ce/Ti-PILC低温SCR脱硝的影响

Titania-pillared clay(Ti-PILC) was obatined with two different Ti precursors of TiCl4 and Ti(OC3H7)4;with Ti-PILC as support,Mn-Ce/Ti-PILCs catalysts were prepared through impregnation.The catalytic activity of Mn-Ce/Ti-PILCs in low temperature SCR of NO with NH3 was investigated.XRD,BET,FT-IR,NH3-TPD and SEM measurements indicated that the pillaring process can change the structure of the clay;compared with the original clay,the specific surface area,the pore volume and the acidity of Ti-PILCs are increased;meanwhile,Mn-Ce/Ti-PILCs also exhibits higher catalytic activity than Mn-Ce/clay.Moreover,Ti(OC3H7)4 as Ti precursor is more effective in enhancing the catalytic activity of Mn-Ce/Ti-PILCs than TiCl4.