CeO_2-supported vanadium oxide catalysts for soot oxidation:the roles of molecular structure and nanometer effect  

作　　者：刘坚 赵震 徐春明 段爱军 姜桂元 

机构地区：[1]State Key Laboratory of Heavy Oil Processing,China University of Petroleum

出　　处：《Journal of Rare Earths》2010年第2期198-204,共7页稀土学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (20803093,20833011,20525621);the Doctor Select Foundation for the University of State Education Ministry (200804251016);the Beijing Outstanding Ph.D.Thesis Foundation (YB 20091141401);the Hi-Tech Research and Development Program (863) of China (SQ2009AA06Z3488052)

摘　　要：The nanometer CeO2 powder was prepared by the method of microwave-assisted heating hydrolysis,and the nanometer CeO2-supported or ordinary CeO2-supported vanadia catalysts with different vanadium loadings(atomic ratios:100V/Ce=0.1,1,4,10,and 20) were prepared by an incipient-wetness impregnation method.Spectroscopic techniques(XRD,FT-IR,Raman and UV-Vis DRS) were utilized to characterize the structures of VOx/CeO2 catalysts.The results showed that the structures of CeO2-supported vanadium oxide catalysts de...The nanometer CeO2 powder was prepared by the method of microwave-assisted heating hydrolysis,and the nanometer CeO2-supported or ordinary CeO2-supported vanadia catalysts with different vanadium loadings(atomic ratios:100V/Ce=0.1,1,4,10,and 20) were prepared by an incipient-wetness impregnation method.Spectroscopic techniques(XRD,FT-IR,Raman and UV-Vis DRS) were utilized to characterize the structures of VOx/CeO2 catalysts.The results showed that the structures of CeO2-supported vanadium oxide catalysts de...

关 键 词：vanadium oxide catalyst CEO2 NANOMETER SOOT combustion rare earths 

分 类 号：O643.36[理学—物理化学]