UV-Raman characterizations of MoO3/ZrO2 catalysts with extremely low MoO3 loadings

被引:7
作者
Hu, YH
Dong, L [1 ]
Wang, J
Chen, Y
Li, C
Li, MJ
Feng, ZC
Ying, PL
机构
[1] Nanjing Univ, Dept Chem, Inst Mesoscop Solid State Chem, Nanjing 210093, Peoples R China
[2] Dalian Inst Chem & Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
关键词
D O I
10.1246/cl.2000.904
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
UV-Raman spectroscopy was first used and proved to be a powerful tool for the characterization of the surface molybdenum oxide species supported on ZrO2, especially for samples with extremely low MoO3 loadings due to the Raman bands of the surface molybdenum oxide species are greatly enhanced by this method. Only one kind of molybdenum oxide species was detected in samples with very low to near a mono-layer coverage of MoO3 loading, and it is suggested that the structure of the highly dispersed molybdenum species is inevitably related to the structure of the support.
引用
收藏
页码:904 / 905
页数:2
相关论文
共 17 条
[1]   SURFACE INTERACTION-MODEL OF GAMMA-ALUMINA-SUPPORTED METAL-OXIDES [J].
CHEN, Y ;
ZHANG, LF .
CATALYSIS LETTERS, 1992, 12 (1-3) :51-62
[2]  
CHEN Y, 1991, CAT SCI TEC, V1, P291
[3]   The dispersion of molybdena on ceria [J].
Dong, L ;
Chen, Y .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (22) :4589-4593
[4]   Rietveld analysis of the cubic crystal structure of Na-stabilized zirconia [J].
Fagherazzi, G ;
Canton, P ;
Benedetti, A ;
Pinna, F ;
Mariotto, G ;
Zanghellini, E .
JOURNAL OF MATERIALS RESEARCH, 1997, 12 (02) :318-321
[5]   SURFACE-STRUCTURES OF SUPPORTED MOLYBDENUM OXIDE CATALYSTS - CHARACTERIZATION BY RAMAN AND MO L(3)-EDGE XANES [J].
HU, HC ;
WACHS, IE ;
BARE, SR .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (27) :10897-10910
[6]  
IWAMURA S, 1998, J CATAL, V177, P72
[7]  
KNOZINGER H, 1978, J PHYS CHEM-US, V82, P2002, DOI 10.1021/j100507a011
[8]  
Li C, 1997, STUD SURF SCI CATAL, V105, P599
[9]   Raman spectroscopic studies on tetragonal ZrO2 supported MoO3 and ZnO-MoO3 systems [J].
Liu, Z ;
Dong, L ;
Ji, WJ ;
Chen, Y .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (08) :1137-1142
[10]   H-1-NMR MAGIC ANGLE SPINNING (MAS) STUDIES OF HETEROGENEOUS CATALYSIS [J].
MASTIKHIN, VM ;
MUDRAKOVSKY, IL ;
NOSOV, AV .
PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1991, 23 :259-299