Monolayer dispersion of MoO3, NiO and their precursors on gamma-Al2O3

doi:10.1016/S0926-860X(99)00248-3

CORC > 北京大学 > 化学与分子工程学院

	Monolayer dispersion of MoO3, NiO and their precursors on gamma-Al2O3
	Wang, XY ; Zhao, BY ; Jiang, DE ; Xie, YC
刊名	applied catalysis a general
	1999
关键词	monolayer dispersion dispersion capacity NiO/gamma-Al2O3 catalyst MoO3/gamma-Al2O3 catalyst preparation of catalyst V2O5/TIO2 ANATASE SYSTEM PARTIAL OXIDATION SPECTROSCOPIC CHARACTERIZATION SLURRY IMPREGNATION ALUMINA CATALYSTS SILICA MONOLAYERS SURFACE MOLYBDENA OXIDE METHANE
DOI	10.1016/S0926-860X(99)00248-3
英文摘要	The dispersion capacities of MoO3, NiO and their precursors on the surface of gamma-Al2O3 are studied by XPS and XRD techniques. As a relatively low melting point oxide, MoO3 gives a dispersion capacity higher than its precursor molybdate based on mole of MoO3 on gamma-Al2O3. Dispersion capacities of molybdate on gamma-Al2O3 depend on the pH of molybdate solution used for impregnation while the dispersion capacity of MoO3 on gamma-Al2O3 is independent of its precursors. As a high-melting point oxide, the dispersion capacity of NiO based on mole of NiO is the same as that of its precursor. By one-step impregnation, dispersion capacity of nickel nitrate and its derived NiO on gamma-Al2O3 is larger than that of nickel acetate and its derived NiO. This difference can be attributed to the larger size of nickel acetate molecule. The utmost dispersion capacity of NiO on gamma-Al2O3 is achieved through one-step impregnation when nickel nitrate is used as the precursor, while the same capacity can only be achieved through multiple impregnation when nickel acetate is used as the precursor. (C) 1999 Elsevier Science B.V. All rights reserved.; Chemistry, Physical; Environmental Sciences; SCI(E); EI; 65; ARTICLE; 1-2; 201-209; 188
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/214101]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, XY,Zhao, BY,Jiang, DE,et al. Monolayer dispersion of MoO3, NiO and their precursors on gamma-Al2O3[J]. applied catalysis a general,1999.
APA	Wang, XY,Zhao, BY,Jiang, DE,&Xie, YC.(1999).Monolayer dispersion of MoO3, NiO and their precursors on gamma-Al2O3.applied catalysis a general.
MLA	Wang, XY,et al."Monolayer dispersion of MoO3, NiO and their precursors on gamma-Al2O3".applied catalysis a general (1999).