Epoxidation of Olefins Catalyzed by Magnesium-Based Mixed Oxides with Hydrogen Peroxide

CORC > 厦门大学 > 化学化工－已发表论文

	Epoxidation of Olefins Catalyzed by Magnesium-Based Mixed Oxides with Hydrogen Peroxide
	Lu, X. N. ; Lin, H. Q. ; Yuan, Y. Z. ; Lin HQ(林海强)
刊名	http://dx.doi.org/10.3724/SP.J.1088.2010.00551
	2010-12
关键词	MOLECULAR-SIEVE TIN-SILICATE SOL-GEL STYRENE NITRILES SOLVENT
英文摘要	A series of Mg-based mixed oxides MgM-n (M = Sn, Al, Ti, La, Cc, Zr; n = Mg/M atomic ratio) were prepared. The physicochemical properties of these mixed oxides were characterized by X-ray diffraction, N(2)-adsorption/desorption, CO(2) temperature-programmed desorption, ultraviolet and visible diffuse reflectance spectroscopy, and electron spin resonance. The catalytic activity of MgM-n for the epoxidation of olefins was investigated with H(2)O(2) as an oxidant. The results indicated that the catalytic performance and basicity of MgM-n mixed oxides were correlated to the type and doping amount of M species. The MgAl-4 and MgSn-4 samples showed a conversion and epoxide selectivity as high as 95% along with over 80% H(2)O(2) efficiency for the epoxidation of styrene. However, MgSn-4 possessed lower surface basicity and more stable performance during consecutive reuse in comparison with MgAl-4. Moreover, MgSn-4 could catalyze the epoxidation of olefins of different structure with excellent performance. With the characteristic studies, it was presumed that such a superior performance of MgSn-4 could essentially be ascribed to the highly dispersed Sn(4+) species and its unique structure as well as the proper basicity.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62553]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Lu, X. N.,Lin, H. Q.,Yuan, Y. Z.,et al. Epoxidation of Olefins Catalyzed by Magnesium-Based Mixed Oxides with Hydrogen Peroxide[J]. http://dx.doi.org/10.3724/SP.J.1088.2010.00551,2010.
APA	Lu, X. N.,Lin, H. Q.,Yuan, Y. Z.,&林海强.(2010).Epoxidation of Olefins Catalyzed by Magnesium-Based Mixed Oxides with Hydrogen Peroxide.http://dx.doi.org/10.3724/SP.J.1088.2010.00551.
MLA	Lu, X. N.,et al."Epoxidation of Olefins Catalyzed by Magnesium-Based Mixed Oxides with Hydrogen Peroxide".http://dx.doi.org/10.3724/SP.J.1088.2010.00551 (2010).