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.
出处
《催化学报》
SCIE
CAS
CSCD
北大核心
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
关键词
邻二甲苯
苯酐
氧化钒
氧化钛
双金属催化剂
o xylene, selective oxidation, vanadium pentoxide, titania, composite oxide catalyst, ultrafine particle
