Monolayer dispersion of oxides and salts on surface of ZrO2 and its   application in preparation of ZrO2-supported catalysts with high surface   areas

doi:10.1023/A:1019048503124

CORC > 北京大学 > 化学与分子工程学院

	Monolayer dispersion of oxides and salts on surface of ZrO2 and its application in preparation of ZrO2-supported catalysts with high surface areas
	Zhao, BY ; Xu, XP ; Ma, HR ; Sun, DH ; Gao, JM
刊名	催化快报
	1997
关键词	monolayer dispersion ZrO2-supported catalysts highly specific surface ZIRCONIA CATALYSTS CALCINATION EVOLUTION SUPPORT TEXTURE AIR
DOI	10.1023/A:1019048503124
英文摘要	The thermostability of ZrO2 can be improved by dispersing a layer of an active component onto its surface in advance. The research results of seven kinds of catalysts (ZrO2-supported MoO3, WO3, CuO, SO42-, NiO, FeSO4 and Fe2O3) show that the surface areas of the samples prepared by impregnating Zr(OH)(4) with the active components and then calcining at high temperature are much larger than those of the samples prepared with an ordinary method, namely, impregnating ZrO2 calcined at high temperature. The surface areas of the ZrO2-supported catalysts obtained in this way are several times that of pure ZrO2 calcined at the same temperature. The characteristic results show: (1) the active components are dispersed on the surface of ZrO2 as monolayer; (2) there is a good corresponding relationship between the surface coverage and the surface area of the sample; (3) as the loading of an active component comes up to its utmost dispersion capacity, the surface area of the sample will be the largest. The mechanism responsible for these phenomena has been discussed.; Chemistry, Physical; SCI(E); 50; ARTICLE; 3-4; 237-244; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/258177]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhao, BY,Xu, XP,Ma, HR,et al. Monolayer dispersion of oxides and salts on surface of ZrO2 and its application in preparation of ZrO2-supported catalysts with high surface areas[J]. 催化快报,1997.
APA	Zhao, BY,Xu, XP,Ma, HR,Sun, DH,&Gao, JM.(1997).Monolayer dispersion of oxides and salts on surface of ZrO2 and its application in preparation of ZrO2-supported catalysts with high surface areas.催化快报.
MLA	Zhao, BY,et al."Monolayer dispersion of oxides and salts on surface of ZrO2 and its application in preparation of ZrO2-supported catalysts with high surface areas".催化快报 (1997).