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中文摘要：
分别采用TiCl4和钛酸丁酯为Ti前驱物制备了钛基交联黏土（Ti-PILC）,通过浸渍法将锰铈负载于Ti-PILC上,制得催化剂Mn-Ce/Ti-PILCs和Mn-Ce/clay,测试了该催化剂在以氨气为还原剂的低温SCR过程中的催化活性,分析了Ti前驱物对黏土结构及催化性能的影响。XRD、BET、FT-IR、NH3-TPD和SEM等表征结果表明,与原土（clay）相比,经钛交联柱撑后,Ti-PILC的微观结构更加合理,其比表面积和孔容都有了一定程度的增加,表面酸性有所增强。与原土负载的Mn-Ce/clay催化剂相比,Mn-Ce/Ti-PILCs的催化活性明显提高。而且,钛酸丁酯作前驱物进行交联比TiCl4交联效果更明显,所得到的催化剂低温活性更好。
英文摘要：
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.
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