邻二甲苯选择氧化的V-Ti-O复合氧化物超细微粒催化剂  

The Composite V Ti O Ultrafine Particle Catalyst for Selective Oxidation of o Xylene

作　　者：刘浏[1] 林明[1] 刘持标 范以宁[1] 颜其洁[1] 陈懿[1] 

机构地区：[1]南京大学化学系,南京210093

出　　处：《催化学报》2000年第1期89-90,共2页

基　　金：国家自然科学基金!(29503018);国家自然科学基金!重大项目(G597005);中国博士后基金

摘　　要：The structure and catalytic properties of V Ti O ultrafine particle catalyst for selective oxidation of o xylene have been studied. TEM and XRD results show that the particle size is in the range of 20～40 nm, and vanadium oxide is highly dispersed in TiO 2 (anatase). The catalytic activity of the V Ti O ultrafine particle catalyst for selective oxidation of o xylene to phthalic anhydride(PA) is higher than that of the larger oxide particles with the same catalyst composition prepared by impregnation and coprecipitation methods, indicating that the ultrafine V Ti O oxide particles are potentially new catalytic materials for the selective oxidation of o xylene to phthalic anhydride.The structure and catalytic properties of V Ti O ultrafine particle catalyst for selective oxidation of o xylene have been studied. TEM and XRD results show that the particle size is in the range of 20～40 nm, and vanadium oxide is highly dispersed in TiO 2 (anatase). The catalytic activity of the V Ti O ultrafine particle catalyst for selective oxidation of o xylene to phthalic anhydride(PA) is higher than that of the larger oxide particles with the same catalyst composition prepared by impregnation and coprecipitation methods, indicating that the ultrafine V Ti O oxide particles are potentially new catalytic materials for the selective oxidation of o xylene to phthalic anhydride.

关 键 词：邻二甲苯 苯酐 氧化钒 氧化钛 双金属催化剂 

分 类 号：O643.36[理学—物理化学]