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	Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation
	Zhang, X ; Xu, BQ
	2010-05-06 ; 2010-05-06
关键词	Au/ZrO2 catalyst 1 3-butadiene hydrogenation zirconia nanoparticles size effect heterogeneous catalysis GOLD CATALYSTS OXIDATION NI/ZRO2 H-2 Chemistry, Multidisciplinary
中文摘要	This work explores the size-effect of zirconia nano particles on the catalysis of Au/ZrO2-AN catalyst for 1,3-butadiene hydrogenation. Zirconia nanoparticles with different sizes (6-30 nm) were prepared by pretreatment at different temperatures (673-1 073 K) and 0.7% Au/ZrO2-AN-T catalysts by deposition-precipitation method. The samples were characterized with XRD, TEM, XRF and nitrogen adsorption measurements. While the Au particles in all the 0.7% Au/ZrO2-AN-T catalysts appeared to show similar sizes (4-5 nm), the catalytic activity order for 1, 3-butadiene hydrogenation clearly revealed that smaller zirconia nanoparticles led to 1% Au/ZrO2-AN-T catalyst with higher catalytic activities. A 100% selectivity to butenes is achieved and the trans to cis ratio in 2-butenes is 0.5-1 over all the 1% Au/ZrO2-AN-T catalysts. The activity improvement by reducing zirconia particle size seems attributable to increased Au-zirconia junctions in the catalyst, as evidenced by the TEM analysis.
语种	中文 ; 中文
出版者	HIGHER EDUCATION PRESS ; BEIJING ; SHATANHOU ST 55, BEIJING 100009, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/13060]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, X,Xu, BQ. Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation[J],2010, 2010.
APA	Zhang, X,&Xu, BQ.(2010).Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation..
MLA	Zhang, X,et al."Size effect of zirconia nanoparticles in Au/ZrO2 catalysts for 1,3-butadiene hydrogenation".(2010).

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